F-114 / F-114P
SERVICE MANUAL
DIGITAL LASER MFP
Contents
1. Precautions
2. Product Specifications & Features
3. Disassembly and Reassembly
4. Alignment & Troubleshooting
5. Exploded Views and Parts Lists
6. System Diagram
7. Reference Information
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Continued
3.12 Scan Motor Ass'y
3-10
3-11
3-12
3-13
3-13
3-14
3-15
3-15
3-16
3-17
3-18
3-20
3-21
3-23
3-23
3.13 ADF Roller
3.14 Sub Hook PBA
3.15 Drive Ass'y
3.16 DC-Fan
3.17 Exit Cover Ass'y
3.18 LSU-Unit
3.19 Engine Shield Ass'y
3.20 Main PBA
3.21 SMPS
3.22 Fuser Ass'y
3.23 Transfer Ass'y
3.24 Feed Ass'y
3.25 Pick up Ass'y
3.26 Solenoid
4. Alignment & Troubleshooting
4.1 Alignment and Adjustments
4.1.1 Paper path
4-1
4-1
4.1.2 Clearing Paper Jams
4-4
4.1.3 User Mode(F-114P)
4-12
4-13
4-18
4-19
4-20
4-21
4-22
4-25
4-25
4-26
4-42
4.1.4 Tech Mode
4.1.5 Engine Test Mode
4.1.6 Identify Sale Date
4.1.7 Consumables and Replacement Parts
4.1.8 Abnormal Image Printing and Defective Roller
4.1.9 Error Messages
4.2 Troubleshooting
4.2.1 Procedure of Checkig the Symptoms
4.2.2 The cause and solution of image quality
4.2.2 Fax & Phone Problems
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Continued
4.2.3 Copy Problems
4-51
4-55
4-63
4-73
4-78
4.2.4 Paper Feed problems – Causes and Solutions
4.2.5 Printer Faults – Causes and Solutions
4.2.6 Toner Cartridge Service
4.2.7 Software Problems – Causes and Solutions
5. Exploded Views & Parts Lists
5.1 Main Exploded View
5-2
5-5
5.2 Top Cover Exploded View
5.3 OPE Ass’y Exploded View
5.4 Scan Upper Ass’y Exploded View
5.5 Main Frame Exploded View
5.6 Fuser Unit Exploded View
5.7 Exit Cover Exploded View
5.8 Cassette Unit Exploded View
5-7
5-9
5-11
5-14
5-16
5-18
6. System Diagram
6.1 Block Diagram
6-1
6-2
6.1 Connection Dia ram
7. Reference Information
7.1 Troubleshooting Tools
7-1
7-2
7-4
7-4
7-5
7.2 Acronyms and Abbreviations
7.3 Selecting printer locations
7.4 LAN (Optional Function)
7.5 Sample Tests Patterns
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Precautions
1. Precautions
In order to prevent accidents and to prevent damage to the equipment please read the precautions listed
below carefully before servicing the printer and follow them closely.
1.1 Safety Warning
(1) Only to be serviced by appropriately qualified service engineers.
High voltages and lasers inside this product are dangerous. This printer should only be serviced by a suitably
trained and qualified service engineer.
(2) Use only authorized replacement parts
There are no user serviceable parts inside the printer. Do not make any unauthorized changes or
additions to the printer, these could cause the printer to malfunction and create electric shock or fire haz-ards.
(3) Laser Safety Statement
The Printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR, chapter 1 Subchapter J for
Class 1(1) laser products, and elsewhere, it is certified as a Class I laser product
con-forming to the requirements of IEC 825. Class I laser products are not considered to be hazardous. The
laser system and printer are designed so there is never any human access to laser radiation above a Class I
level during normal operation, user maintenance, or prescribed service condition.
Warning >> Never operate or service the printer with the protective cover removed from Laser/Scanner assembly. The
reflected beam, although invisible, can damage your eyes. When using this product, these basic safety
pre-cautions should always be followed to reduce risk of fire, electric shock, and injury to persons.
CAUTION - INVISIBLE LASER RADIATION
WHEN THIS COVER OPEN.
DO NOT OPEN THIS COVER.
VORSICHT - UNSICHTBARE LASERSTRAHLUNG,
WENN ABDECKUNG GEÖFFNET.
NICHT DEM STRAHL AUSSETZEN.
ATTENTION - RAYONNEMENT LASER INVISIBLE EN CAS
D’OUVERTURE. EXPOSITION DANGEREUSE
AU FAISCEAU.
ATTENZIONE - RADIAZIONE LASER INVISIBILE IN CASO DI
APERTURA. EVITARE L’ESPOSIZIONE AL
FASCIO.
PRECAUCION - RADIACION LASER IVISIBLE CUANDO SE ABRE.
EVITAR EXPONERSE AL RAYO.
ADVARSEL. - USYNLIG LASERSTRÅLNING VED ÅBNING, NÅR
SIKKERHEDSBRYDERE ER UDE AF FUNKTION.
UNDGÅ UDSAETTELSE FOR STRÅLNING.
ADVARSEL. - USYNLIG LASERSTRÅLNING NÅR DEKSEL
ÅPNES. STIRR IKKE INN I STRÅLEN.
UNNGÅ EKSPONERING FOR STRÅLEN.
VARNING - OSYNLIG LASERSTRÅLNING NÄR DENNA DEL
ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
BETRAKTA EJ STRÅLEN. STRÅLEN ÄR FARLIG.
VARO! - AVATTAESSA JA SUOJALUKITUS OHITETTAESSA
OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASER-
SÄTEILYLLE ÄLÄ KATSO SÄTEESEEN.
1-1
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Precautions
1.2 Caution for safety
1.2.1 Toxic material
This product contains toxic materials that could cause illness if ingested.
(1) If the LCD control panel is damaged it is possible for the liquid inside to leak. This liquid is toxic. Contact with the skin
should be avoided, wash any splashes from eyes or skin immediately and contact your doctor. If the liquid gets into
the mouth or is swallowed see a doctor immediately.
(2) Please keep toner cartridges away from children. The toner powder contained in the toner cartridge may be harmful
and if swallowed you should contact a doctor.
1.2.2 Electric Shock and Fire Safety Precautions
Failure to follow the following instructions could cause electric shock or potentially cause a fire.
(1) Use only the correct voltage, failure to do so could damage the printer and potentially cause a fire cause an
electric shock.
(2) Use only the power cable supplied with the printer. Use of an incorrectly specified cable could cause the cable
to overheat and potentially cause a fire.
(3) Do not overload the power socket, this could lead to overheating of the cables inside the wall and could lead to
a fire.
(4) Do not allow water or other liquids to spill into the printer, this can cause electric shock. Do not allow paper
clips, pins or other foreign objects to fall into the printer these could cause a short circuit leading to an electric
shock or fire hazard..
(5) Never touch the plugs on either end of the power cable with wet hands, this can cause electric shock. When
servicing the printer remove the power plug from the wall socket.
(6) Use caution when inserting or taking off the power plug. The power plug has to be inserted completely. If not,
a fire will be caused due to poor contact. When taking off the power plug, grip the plug and remove it.
(7) Take care of the power cable. Do not allow it to become twisted, bent sharply round corners or other wise
damaged. Do not place objects on top of the power cable. If the power cable is damaged it could overheat and
cause a fire or exposed cables could cause an electric shock. Replace a damaged power cable immediately,
do not reuse or repair the damaged cable. Some chemicals can attack the coating on the power cable,
weakening the cover or exposing cables causing fire and shock risks.
(8) Ensure that the power sockets and plugs are not cracked or broken in any way. Any such defects should be
repaired immediately. Take care not to cut or damage the power cable or plugs when moving the machine.
(9) Use caution during thunder or lightening storms. It is recommend that this machine be disconnected from
the power source when such weather conditions are expected. Do not touch the machine or the power cord if it
is still connected to the wall socket in these weather conditions.
(10) Avoid damp or dusty areas, install the printer in a clean well ventilated location. Do not position the machine
near a humidifier. Damp and dust build up inside the machine can lead to overheating and cause a fire.
(11) Do not position the printer in direct sunlight. This will cause the temperature inside the printer to rise possibly
leading to the printer failing to work properly and in extreme conditions could lead to a fire.
(12) Do not insert any metal objects into the machine through the ventilator fan or other part of the casing, it could
make contact with a high voltage conductor inside the machine and cause an electric shock.
1-2
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Precautions
1.2.3 Handling Precautions
The following instructions are for your own personal safety, to avoid injury and so as not to damage the printer
(1) Ensure the printer is installed on a level surface, capable of supporting its weight. Failure to do so could cause
the printer to tip or fall.
(2) printer contains many rollers, gears and fans. Take great care to ensure that you do not catch your fingers, hair
or clothing in any of these rotating devices.
(3) Do not place any small metal objects, containers of water, chemicals or other liquids close to the printer which if
spilled could get into the machine and cause damage or a shock or fire hazard.
(4) Do not install the machine in areas with high dust or moisture levels, beside on open window or close to a
humidifier or heater. Damage could be cause to the printer in such areas.
(5) Do not place candles, burning cigarettes, etc on the printer, These could cause a fire.
1.2.4 Assembly / Disassembly Precautions
Replace parts carefully, always use authorized parts. Take care to note the exact location of parts and also
cable routing before dismantling any part of the machine. Ensure all parts and cables are replaced correctly.
Please carry out the following procedures before dismantling the printer or replacing any parts.
(1) Check the contents of the machine memory and make a note of any user settings. These will be erased if the
mainboard or network card is replaced.
(2) Ensure that power is disconnected before servicing or replacing any electrical parts.
(3) Disconnect printer interface cables and power cables.
(4) Only use approved spare parts. Ensure that part number, product name, any voltage, current or temperature
rating are correct.
(5) When removing or re-fitting any parts do not use excessive force, especially when fitting screws into plastic.
(6) Take care not to drop any small parts into the machine.
(7) Handling of the Toner Cartridge
- The OPC Drum can be irreparably damaged if it exposed to light.
Take care not to expose the OPC Drum either to direct sunlight or to fluorescent or incandescent room
lighting. Exposure for as little as 5 mins can damage the surface’s photoconductive properties and will result
in print quality degradation. Take extra care when servicing the printer. Remove the OPC Drum and store it in
a black bag or other lightproof container. Take care when working with the covers(especially the top cover)
open as light is admitted to the OPC area and can damage the OPC Drum.
- Take care not to scratch the green surface of OPC Drum Unit.
If the green surface of the Drum Cartridge is scratched or touched the print quality will be compromised.
1-3
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Precautions
1.2.5 Disregarding this warning may cause bodily injury
(1) Be careful with the high temperature part.
The fuser unit works at a high temperature. Use caution when working on the printer. Wait for the fuser to cool
down before disassembly.
(2) Do not put finger or hair into the rotating parts.
Take care when using a printer. It contains many rotating parts. Ensure that fingers, hair, clothing etc. do not
become caught in the mechanism as this could cause injury.
(3) When you move the printer.
This printer weighs 10kg including toner cartridge and cassette. Use safe lifting and handling techniques. Use
the lifting handles located on each side of the machine. Back injury could be caused if you do not lift carefully.
(4) Ensure the printer is installed safely.
The printer weighs 10Kg, ensure the printer is installed on a level surface, capable of supporting its weight.
Failure to do so could cause the printer to tip or fall possibly causing personal injury or damaging the printer.
(5) Do not install the printer on a sloping or unstable surface. After installation, double check that the printer is
stable.
1-4
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Precautions
1.3 ESD Precautions
Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called
“Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits, some field
effect transistors, and semiconductor “chip” components.
The techniques outlined below should be followed to help reduce the incidence of component damage caused by
static electricity.
Caution >>Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known earth ground. Alternatively, employ a commercially avail-
able wrist strap device, which should be removed for your personal safety reasons prior to applying power to the
unit under test.
2. After removing an electrical assembly equipped with ESDs, place the assembly on a conductive surface, such as
aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity of the assem-
bly.
3. Use only a grounded tip soldering iron to solder or desolder ESDs.
4. Use only an “anti-static” solder removal device. Some solder removal devices not classified as “anti-static” can
generate electrical charges sufficient to damage ESDs.
5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to dam-
age ESDs.
6. Do not remove a replacement ESD from its protective packaging until immediately before installing it. Most
replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum foil, or a compa-
rable conductive material.
7. Immediately before removing the protective shorting material from the leads of a replacement ESD, touch the pro-
tective material to the chassis or circuit assembly into which the device will be installed.
8. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed, until com-
pletely plugged or soldered into the circuit.
9. Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the brushing
together of clothing fabric and lifting one’s foot from a carpeted floor, can generate static electricity sufficient to
damage an ESD.
1-5
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Product spec and feature
2. Product specification and feature
2.1 Product Specifications
Specfications are correct at the time of printing. Product specifications are subject to change without notice.
See below for product specifications.
Items
F-114 Series
Model Name
Functions
F-114P
F-114
Fax,Copier
Fax,Copier,Printer,Scanner
General
Size (W*D*H) w/o Hand Set
363.0 * 398.0 * 308.3(mm)
363.0 * 398.0 * 308.3(mm)
Weight Without Toner Cartridge
With Toner Cartridge
10kg
11.5kg
10kg
11.5kg
LCD
16*2
16*2
Interface
USB 1.1
500
USB 1.1 : f/w Down Load
AMV(Average Month Volume) Printing
-
Scan to Copy
or Scan to Fax
500
500
Duty cycle, Monthly Printing
Up to 10,000 pages
Up to 2,000 pages
Up to 120,000 Pages
Yes
Up to 10,000 pages
Up to 2,000 pages
Up to 120,000 Pages
Yes
ADF SCAN
Engine Life
Power
Power Switch
Input Voltage
Power Sleep Mode
Operating(ADF)
Standby
Consumption
AC110V~127V, 220V ~ 240V
Energy Star Compliant
Less than 52 dBA
Less than 39 dBA
Less than 509 dBA
AC110V~127V, 220V ~ 240V
Energy Star Compliant
Less than 52 dBA
Less than 39 dBA
**Noise
Printing
Less than 50 dBA
(Fax Rec., Memory Copy)
EMI Approval
PC Print
EMI Approval
Power Save Mode
Print Method
N/W I/f
Class B
Class B
Yes (5/10/15/30/45min.off)
Yes (5/10/15/30/45min.off)
Laser
No
Laser
No
-
* Speed (Engine)
Up to 16 PPM in A4 size,
Up to 17 PPM in Letter size
Resolution
Normal
RET
Up to 600 x 600 DPI effective output
No
-
-
Print Language
Toner Save
Fpot
GDI
-
Yes
Yes(Text Mode)
Stand by
Approx. 12 seconds
Less than 42 seconds
208 x 273 mm (Letter)
Manual (driver support provided)
-
-
-
-
Power Save
Printable Area
Duplex Print
* Speed will be affected by Operating System used, computing performance, application software, connect-
ing method, media type, media size and job complexity.
** Sound Pressure Level, ISO 7779
2-1
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Product spec and feature
Items
Halftone
F-114 Series
256level
Model Name
Scan
F-114P
F-114
256level
Scan Method
*Scan Speed
(Second /scan)
"CIS, Mono"
"CIS, Mono"
Gray
Color
Up to 72 sec
-
-
-
Black&White Up to 25 sec
-
Resolution(Optical)
Halftone
Up to 200 x 200 DPI effective output
Up to 200 x 200 DPI effective output
256level
216mm
208mm
400mm
-
-
-
-
Scan Width
Max
Effective
Max
Scan Length
Speed
Copy
Up to 16 PPM in A4 size,
Up to 17 PPM in Letter size
Up to 16 PPM in A4 size,
Up to 17 PPM in Letter size
Resolution
Halftone
Up to 300 x 300 DPI effective output
Up to 300 x 300 DPI effective output
256level
256level
Copy Quality Selection Text
or Original Image type Photo
selection Mode
16sec/Letter
16sec/letter
16sec/Letter
16sec/letter
FCOT
Power Save Yes
Yes
Stand by
SDMC
approx : 30sec
approx : 30sec
*Copy Speed
Up to 16 PPM in A4 size,
Up to 17 PPM in Letter size
Up to 16 PPM in A4 size,
Up to 17 PPM in Letter size
MDMC
3cpm
3cpm
Zoom Range
Multi Copy
Handset
50-150%
50-150%
1~99
1~99
Telephone
Yes
Yes
1-Touch Dial
Speed Dial
TAD
20
20
80
80
No
No
TAD I/F
Yes
Yes
Tone/Pulse
Tone (DTMF)
Pulse : setting in tech mode
No
Tone (DTMF)
Pulse : setting in tech mode
No
Earth/Recall
SMS
No
No
External Phone Interface
Compatibility
Yes
Yes
Fax
ITU-T G3
ITU-T G3
Communication System
Modem Speed
TX Speed
PSTN/PABX
33.6Kbps
PSTN/PABX
33.6Kbps
approx. 3 sec
MH/MR/MMR
Yes
approx. 3 sec
MH/MR/MMR
Yes
Compression
ECM
Resolution
Std
Up to 203 x 98 DPI effective output
Up to 203 x 196 DPI effective output
Up to 203 x 392 DPI effective output
Up to 6 sec
Up to 203 x 98 DPI effective output
Up to 203 x 196 DPI effective output
Up to 203 x 392 DPI effective output
Up to 6 sec
Fine
S.Fine
Std
Fine
Up to 12 sec
Up to 24 sec
Up to 12 sec
Up to 24 sec
S.Fine
2-2
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Product spec and feature
Items
Halftone
F-114 Series
256level
Model Name
Fax
F-114P
F-114
256level
(Continued)
Memory
Capacity
Total memory: 8MB( Fax: 2MB)
Total memory: 8MB(Fax: 2MB)
Optional Memory No
No
Broadcasting
Delay TX
Memory RX
Voice Request
TTI
Yes
Yes
Yes
Yes
No
Yes
Yes
Functions
No
Yes
Yes
Yes
Rx Polling
Yes
No
RTI
Yes
Polling
Rx Polling
Security Receive Yes
Flash No
Auto Reduction Yes
Yes
Yes
"F/W Upgrade
from Remote"
Yes
Memory B/U
Yes(96 Hour)
Cassette
Yes(96 Hour)
Cassette
Paper Handling Casstte
Type
Input Capacity
Optional Cassette
Output Capacity
Output Control
Bypass
250Sheets/20lb
No
250Sheets/20lb
No
Max. 150 sheets/20lb
Face down
1sh
Max 150 sheets/20lb
Face down
1sh
Media Size for
Main Tray
For Fax and Copy: A4,Letter, For Fax and Copy: A4,Letter,
Legal For PC Print : A4,Letter, Legal For PC Print : A4,Letter,
Legal. Folio, Executive, B5
Envelope6 3/4, 7 3/4,#9,
#10,DL,C5,B5
Legal. Folio, Executive, B5"
Envelope6 3/4, 7 3/4,#9,
#10,DL,C5,B5
Media Size for
Bypass
Media Weight
Auto : 16 ~ 28 Ib
Auto : 16 ~ 28 Ib
Bypass: 16 ~ 43 Ib
Min. 20 Sheets
Bypass: 16 ~ 43 Ib
ADF
Input Capacity
Media Weight
Min. 20 Sheets
12.5lb ~ 28lb, 32lb(1 sheet)
12.5lb ~ 28lb, 32lb(1 sheet)
* Copy or Scan speed will be affected by Operating System used, computing performance, application software,
connecting method, media type, media size and job complexity.
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Product spec and feature
Items
Windows
F-114 Series
Model Name
Software
F-114P
F-114
Win 2000
Yes
Yes
Yes
Yes
SPL
Yes
Yes
No
No
No
No
No
No
No
Compatiblity
(Scan/Print)
Win 2003
Win XP
Win Vista
GDI Printer
TWAIN
Driver
FaxRCP
(Windows ONLY)
Mac Printer
Mac Scanner
Linux Printer
Linux Scanner
PC-FAX
Yes
No
No
No
No
No
-
No
Yes
Yes
No
M/S Certification
WHQL
Yes (Win 2000/2003/XP)
No
WIA
No
-
Bundle S/W
Media
SmarThru 3
Yes
CD-ROM
Manual
-
Standalone Fax: Book
MFP: CD
Standalone Fax: Book
Diskette
Initial
No
No
Consumables
Life
1,000 Pages
3,000 Pages
Yes(Dot Counter)
1,000 Pages
3,000 Pages
Yes(Dot Counter)
Running
Toner Sensor (Software)
Periodic Replacing Parts
Pick Up Roller : Up to 60,000 sheets
Transfer Roller : Up to 60,000 sheets
Fuser Assembly : Up to 60,000 sheets
ADF Roller : Up to 60,000 sheets
ADF Rubber : Up to 10,000 sheets
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Summary of Product
Product spec and feature
2.2 Summary of Product
This chapter describes the functions and operating principals of the main components.
2.2.1 Printer Components
2.2.1.1 Front View
2-5
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Product spec and feature
Items
Windows
F-114 Series
Model Name
Software
F-114P
F-114
Win 2000
Yes
Yes
Yes
Yes
SPL
Yes
Yes
No
No
No
No
No
No
No
Compatiblity
(Scan/Print)
Win 2003
Win XP
Win Vista
GDI Printer
TWAIN
Driver
FaxRCP
(Windows ONLY)
Mac Printer
Mac Scanner
Linux Printer
Linux Scanner
PC-FAX
Yes
No
No
No
No
No
-
No
Yes
Yes
No
M/S Certification
WHQL
Yes (Win 2000/2003/XP)
No
WIA
No
-
Bundle S/W
Media
SmarThru 3
Yes
CD-ROM
Manual
-
Standalone Fax: Book
MFP: CD
Standalone Fax: Book
Diskette
Initial
No
No
Consumables
Life
1,000 Pages
3,000 Pages
Yes(Dot Counter)
1,000 Pages
3,000 Pages
Yes(Dot Counter)
Running
Toner Sensor (Software)
Periodic Replacing Parts
Pick Up Roller : Up to 60,000 sheets
Transfer Roller : Up to 60,000 sheets
Fuser Assembly : Up to 60,000 sheets
ADF Roller : Up to 60,000 sheets
ADF Rubber : Up to 10,000 sheets
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Product spec and feature
2.2.1.3 Control Panel
< F-114 / F-114P >
1
2
3
4
5
6
7
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Product spec and feature
4
5
6
S
A
V
E
7
F
A
X
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Product spec and feature
2.2.2 Overview of System
The F-114 / F-114P can be divided into the following main constituent parts: Main Controller, Operator’s Panel,
PC Interface, Scanner, Line Interface and Power Supply. The Main Controller uses an SPGPm processor. The
Operator’s panel; (OPE) has its own MICOM which communicates serially with a UART built into the SPGPm
processor. The Scanner uses an Image Processor chip (CIP4) to control the CIS. The Line Interface an FM336
integrated with the Main Board and communicates with the LIU at speeds up to 33.6Kbps. The Power Supply has
both the SMPS and HVPS integrated on one PBA.
2.2.2.1 Main Controller.
The Main Controller of the F-114 / F-114P consists of two ASICs (CPU, Image Processor), Scanner, Fax Modem
and Print sections. Bus Control, I/O Handling, Scanner, all motor drivers and the PC Interface function is controlled
by the CPU.
It uses the chorus2. These control the peripherals and the Image Processing.
2.2.2.2 Line Interface.
This part connects the set with the PSTN. The main functions of this section are Line Interface, Line Monitoring,
and connection to an external phone or TAD using the built in EXT connector..
2.2.2.3 Print Engine.
The Print Engine consists of the following sections: Frame, Paper Feed, Image Transfer, Imaging Unit, Toner
Cartridge, Fuser, High Voltage Supply and Scanner. The set uses an Electro Photographic process using the LSU
to develop a latent image on the OPC drum. The Toner process is a single part diamagnetic process. Copy and
Transfer processes use a CIS Module.
2.2.2.4 Scanner.
The scanner is designed around a 200dpi CIS module. The CIS scanning width is maximum 216mm,
effective width is 208mm. The F-114 operates at 200lpi, the F-114P operates at 300 lpi.
2.2.2.5 Summary of Main Unit
- Main Board
This is an integral unit having the Engine and Video control on a single PBA. It controls the Electrophotographic
Process to take the image from the PC Interface and generate the Video Data for the LSU. It also manages the
transfer of that image onto paper and the fusing of the image. The main PBA unit consists of the following circuits:
Motor (Paper Feed and Exit) Driver, the Clutch driver, Pre-transfer Lamp Driver, the Fuser Driver and the Fan
Driver. The signals from the Paper Feed Sensor, the Paper Empty Sensor, MP sensor and Exit Sensor are input to
the Main Board from the SMPS/HVPS PBA.
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Product spec and feature
- SMPS Board & HVPS Board
These are integrated into a singe PBA. The Power Supply uses the 110VAC/220VAC supply voltage to
generate the DC Voltages used by the system. The SMPS has 3 output channels (+5V, +12V, +24V, +24VS) and
supplies the Main Board and the OPE Board.
The HVPS creates the high voltages (THV/MHV/Supply/Dev) used for the electrophotographic process. The high
voltage is created from the 24VS line from the SMPS. High Voltage output is supplied to the Toner, the OPC
Cartridge and the Transfer Roller.
- OPE Board
The Operation Panel is driven by its own internal program using the OPE MICOM chip separate from the Main
Board processor. Data is transferred using the UART Port in the Main Controller serially. This unit
consists of the MICOM, the Key Pad Matrix and the LCD.
- Toner Cartridge
The Toner Cartridge consists of integrated Exposure and Developer units. The Exposure Unit consists of the OPC
Drum and the Charge Roller, and the Developer Unit consists of the toner particles and its tank, the Supply Roller
and the Developer Roller.
- LSU (Laser Scanner Unit)
This is the core of the laser printer. It converts the video data received from the computer into an electrostatic
latent image on the surface of the OPC drum. This is achieved by controlling the laser beam and exposing the sur-
face of the OPC drum to the laser light. A rotating polygon mirror reflects the laser light onto the OPC and each
side of the mirror is one scan line. The OPC drum turns as the paper feeds to scan the image down the page.
The /HSYNC signal is created when the laser beam from LSU reaches the end of the polygon mirror and this sig-
nal is sent to the controller. The controller detects the /HSYNC signal to adjust the vertical line of the image on
paper. In other words after the /HSYNC signal is detected the image data is sent to the LSU to adjust the left mar-
gin on the paper.
- Toner Transfer
Toner is transferred from the OPC drum onto the paper using a PTL (Pre-transfer Lamp) and a transfer roller. The
PTL shines light onto the OPC, this reduces the electrical charge on the surface of the OPC
surface and improves the efficiency of the transfer.
The transfer roller transfers toner from the OPC drum to the paper.
Life span: Print over 100,000 sheets (at 15~30ºC)
- Fuser
This consists of a heat lamp, heat roller, pressure roller, thermistor and thermostat. By use of heat and pressure
toner is caused to melt and adhere to the paper surface in order to complete the printing process.
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Product spec and feature
2.2.3 System Layout
2.2.3.1 Feeding section
There is a universal cassette which automatically loads paper and the manual feed which supplies paper
single sheet at a time. The cassette has a friction pad which separates paper to ensure single sheet
feeding, and it has a sensor, which checks when the paper tray is empty.
- Feeding Method: Universal Cassette Type
- Feeding Standard: Center Loading
- Feeding Capacity: Cassette-250 sheets (75g/m2, 20lb paper standard)
Manual 1 sheet (Paper, OHP, Envelop, etc.)
- Paper detecting sensor: Photo sensor
- Paper size sensor: None
2.2.3.2 Transfer Ass’y
This consists of the PTL (pre-transfer lamp) and the Transfer Roller. The PTL shines a light onto the OPC
drum. This lowers the charge on the drum’s surface and improves transfer efficiency.
The transfer roller transfers toner from the OPC drum surface to the paper.
- Life expectancy: Over 60,000 sheets (at 15~30°C)
2.2.3.3 Driver Ass’y
- Gear driven power unit. The motor supplies power to the paper feed unit, the fuser unit, and the toner
cartridge.
2.2.3.4 Fixing Part(Fuser)
- The fuser consists of the Heat Lamp, Heat Roller, Pressure Roller, Thermistor, and Thermostat. It fixes
toner to the paper using pressure and heat to complete the printing job.
2.2.3.4(a) Temperature-Intercepting Device (Thermostat)
The thermostat is a temperature sensing device, which cuts off the power to the heat lamp to prevent
overheating fire when the heat lamp or heat roller overheats.
2.2.3.4(b) Temperature Detecting Sensor (Thermistor)
The Thermistor detects the surface temperature of the heat roller, this information is sent to the main
processor which uses this information to regulate the temperature of the heat roller.
2.2.3.4(c) Heat Roller
The surface of the Heat Roller is heated by the Heat Lamp. As the paper passes between the Heat and
Pressure rollers the toner is melted and fixed permanently to the paper. The surface of the roller is coated
with Teflon. This ensures that toner does not adhere to the roller surface.
2.2.3.4(d) Pressure roller
The Pressure Roller mounted under the heat roller, it is made of a silicon resin, and the surface of the roller
is coated with Teflon. This ensures that toner does not adhere to the roller surface.
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Product spec and feature
2.2.3.4(e) Safety Features
• To prevent overheating
- 1st protection device: Hardware cuts off when overheated
- 2nd protection device: Software cuts off when overheated
- 3rd protection device: Thermostat cuts off mains power to the lamp.
• Safety device
- Fuser power is cut off when the front cover is opened
- LSU power is cut off when the front cover is opened
- The temperature of the fuser cover's surface is maintained at less than 80ºC to protect the user and a
caution label is attached where the customer can see it easily when the rear cover is opened.
2.2.3.5 Scanner
• Scan Image Controller
1.Minimum Scan Line Time : 1.23ms
2.Scan Resolution : Color (Max 600 DPI)
3.Scan Width : 208mm
4.Function
- White Shading Correction
- Gamma Correction
- CIS Interface
- 256 Gray Scale
• CIS Driver Circuit
- CIS Max Frequency : 0.5MHz
- CIS Line Time : 5ms
- White Data Output Voltage : Max 1.2V
• Tx Driver Circuit
- Tx Motor Speed : Max 2200pps
- Motor Driver : STA471A
- Voltage : 24V DC
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Product spec and feature
2.2.3.6 LSU (Laser Scanner Unit)
This is the core of the laser printer. It converts the video data received from the computer into an electrosta-
tic latent image on the surface of the OPC drum. This is achieved by controlling the laser beam and expos-
ing the surface of the OPC drum to the laser light. A rotating polygon mirror reflects the laser light onto the
OPC and each side of the mirror is one scan line. The OPC drum turns as the paper feeds to scan the
image down the page.
The /HSYNC signal is created when the laser beam from LSU reaches the end of the polygon mirror and
this signal is sent to the controller. The controller detects the /HSYNC signal to adjust the vertical line of the
image on paper. In other words after the /HSYNC signal is detected the image data is sent to the LSU to
adjust the left margin on the paper.
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Product spec and feature
2.2.3.7 Toner Cartridge
The toner cartridge is an integral unit containing the OPC unit and toner unit. The OPC unit consists of the
OPC drum and charging roller, and the toner cartridge unit consists of the toner, supply roller, developing
roller, and blade (Doctor blade)
- Developing Method: Non magnetic 1 element contacting method
- Toner: Non magnetic 1 element shatter type toner
- The life span of toner: 3,000 sheets (IDC Pattern/A4 standard)
- Toner remaining amount detecting sensor: Yes
- OPC Cleaning: Electrostatic process
- Management of waste toner: Collect the toner using a Cleaning Blade
- OPC Drum protecting Shutter: Yes
- Classifying device for toner cartridge: ID is classified by interruption of the frame channel
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Product spec and feature
2.2.4 Main PBA(SPL Model)
The Engine Board and Controller Board have been integrated into a single PBA. This consists of the CPU,
printer scanner and line control functions. The CPU functions as the bus controller, I/O handler, motor driver
and PC inter-face. The main board sends the Current Image Video data to the LSU and manages the
Electrophotographic printing process. Circuits on the PBA drive include the main motor (paper feed,
cartridge, fuser), clutch driver, pre-transfer lamp driver, heat-lamp driver, CIS driver, scan motor driver,
modem and fan driver.
The signals from the paper feed jam sensor and paper empty sensor are inputted to the main board from
the power supply PBA.
Line interface circuit, it is a circuit for interfacing a telephone line with a modem and DAA. The circuit consists of
a matching circuit to conform to the impedance of the receiving telephone line and a circuit to conform to the impedance
of a modem.
Also, there is a ring detect circuit to detect a ring signal from the switchboard and a surge absorber to protect against
lighting strike surges on the incoming line.
EXPANSION I/O
(HCT273)
SUPER1284
SDRAM
74LVX161284
ASIC
MODEM
Battery
MOTOR DIRVE IC
(A3 977 SLP)
MODEM CLOCK
FLASH
MEMORY
STA471
(SCAN MOTOR DRIVE I/C)
BUFFER(INVERTER)
74HCTO 4M
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Product spec and feature
2.2.4.1 ASIC (Chorus2)
The unt's S3C46Q0X 16/32-bit RISC micro controller is designed to provide a cost-effective, low power,
small die size and high performance micro-controller solution for MFP.
The S3C46Q0X is developed using ARM7TDMI core, 0.18(m CMOS standard cell, and memory cell.
•Main function block
• 1.8V internal, 3.3V external (I/O boundary) microprocessor with 4KByte Cache
• Image Processor
• On-chip clock generator with PLL
• Memory & External Bank Control
• DMA Control (5-channel)
• Interrupt Control
• 2-port USB Host /1- port USB Device (ver 1.1) Interface Control
• UART (2 Channel)
• Synchronous Serial Interface Control
• Timer (4 Channel)
• Watch Dog Timer
• Power control: Normal, Slow, Idle, Stop and SL_IDLE mode
• A/D Converter (10-bit, 2 Channel)
• General I/O Port Control
• Print Head Control
• Carrier Motor Control
• Paper Motor Control
• Tone Generator
• RTC with calendar function
• S/W Assistant function( Rotator )
2.2.4.2 Flash Memory
This stores the system program. Firmware upgrade is achieved by downloading from the new image using the PC
Interface.
• Capacity : 0.5 M Byte
• Access Time : 70 nsec
2.2.4.3 SDRAM
This is used as a buffer, system working memory area, etc. while printing and scanning. This memory is also used to
store faxes waiting to be sent or waiting to be printed.
• Access Time : 60 nsec
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Product spec and feature
2.2.4.4 Sensor input circuit
1) Paper Empty Sensor
The Paper Empty sensor (Photo Interrupter) on the SMPS/HVPS PBA is monitored by the CPU on
signal(nP_EMPTY, CN3-Pin 1). When the cassette is empty the printer displays a message on the LCD
panel.
2) MP Sensing
Presence of paper in the MP tray is detected by operation of the MP Sensor (Photo Interrupter) on the
SMPS/HVPS PBA. The CPU monitors signal(MP_EMPTY, CN3-Pin 13) to recognize paper in the MP,
and paper is fed from MP if there is paper present.
3) Paper Feed Sensor, (Toner Cartridge Sensor)
When paper passes the actuator on the feed sensor, it is detected by the Photo interrupter.
signal(nP_FEED, CN3-Pin 2) monitored by the CPU and this signal starts the process of creating the
image after certain delay time If the feed sensor is not detected within 1 sec. after paper is fed, a paper
Jam0 occurs. (Displayed on the LCD panel).
When a toner cartridge is inserted it also operates the Paper Feed sensor. A message is displayed on the
LCD if no cartridge is detected.
4) Paper Exit Sensor
This detects that paper exits cleanly from the Machine using an exit sensor on the engine board and
actuator on the frame. The monitors signal(P_EXIT, CN3-Pin 26) and detects the on/off time of the exit
sensor and if jam status is detected then JAM2 is displayed the on the LCD panel.
5) Cover Open Senser
The Cover open sensor actuator is located on the front cover and the senor is in the main frame. When the
front cover is opened the +24VS to the DC fan, solenoid, main motor, polygon motor part of LSU, HVPS that
are cut off. The CPU monitors signal(COVER_OPEN) to recognize when the cover is opened.
6) DC FAN / SOLENOID Driving
It is driven by a transistor and controlled by signal(FAN, CN3-Pin 24) bit of the CPU.
When it is high the fan is activated by turning on the TR, and it is off when the sleep mode is selected.
There are two solenoids and these are driven by the Paper Pick-up and MP signals. The drive time is
300ms. The diode protects the driving TR from the Back-EMF pulse which is generated when the
solenoid is de-energized.
7) Motor Driving
The motor driving circuit is activated when the Driver IC is enabled. An A3977 (Motor driver IC) is used in
this case. The resistance Rs value of sensing and the voltage value of the V reference can be changed
by the motor driving voltage value.
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Product spec and feature
2.2.5 SMPS & HVPS
The SMPS and HVPS are on one integrated board.
The SMPS supplies the DC power to the system. It takes either 110V or 220V and outputs the +5V,
-5V/0.5A, 12V and 24V supplies to the main and ADF PBAs.
The HVPS creates the high voltage of THV/MHV/Supply/Dev and supplies it to the toner cartridge. The CPU is
used to modify some of these voltage settings to provide the ideal voltages to create the image.
The HVPS part uses the 24V and outputs the high voltage for THV/MHV/BIAS and the outputted high voltage is
supplied to the toner, OPC cartridge and transfer roller.
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Product spec and feature
2.2.5.1 HVPS(High Voltage Power Supply)
1) Transfer High Voltage (THV+)
- Function : It is this voltage that transfers toner from the OPC Drum to the paper.
- Output voltage : +1300V DC 20V
- Error : IF THV (+) is not present, low density printing occurs due to toner on the OPC Drum not being
transferred to the paper. It is possible that waste toner over-flow can occur if this condition persists.
Ghost images may appear which repeat at 76mm intervals.
2) Charge Voltage (MHV)
- Function : It is this voltage that charges the surface of the OPC to -900V ~ -1000V.
- Output voltage : -1550V DC 50V
- Error : IF MHV is not present toner then since the OPC drum surface has no charge toner is attracted to
the whole OPC surface. A black page is printed out when this happens.
3)Cleaning Voltage (THV-)
- Function : It removes toner contamination from the rear side of the paper by sending (-) polarity to the
transfer roller forcing toner to transfer back to the to OPC drum.
- Output Voltage : +300V/-150V
- Error : Smudges and toner contamination on the reverse side of the printed page.
4) Developing Voltage (DEV)
- Function: It is this voltage that develops toner with on to the section of the OPC drum surface exposed
by the LSU
(Laser Scanning Unit).
* When printing the exposed voltage on the OPC is -180V, unexposed is -900~-1000V, and the exposing
voltage on the DEV is -430V. Therefore toner with (-) polarity is developed onto an exposed
section of the OPC.
- Output voltage: -430V DC 20V
- Error: a) If DEV is GND, print density gets extremely low.
b) When DEV is floating due to poor connection between the frame and cartridge contacts etc.,
print density gets extremely high.
5) Supply Voltage (SUP)
- Function: It is this voltage that supplies toner to the developing roller.
- Output voltage: : -630V DC 50V (Use ZENER, DEV Gear)
- Error: a) When SUP is GND print density gets extremely low.
b) If SUP is floating due to poor connection between the frame and cartridge contacts etc. density
gets extremely low such that it is hard to see toner with the eyes
6) OPC Ground ZENER Voltage
- Function: It is this voltage that prevents image contamination under low temperature and low humidity
environment conditions.
- When a set prints without an output voltage, -130V DC 15V is maintained on OPC ground. (-103V
ZENER diode is connected to OPC ground)
- Error type: a) When the ZENER diode is - 0V there is no serious image problem in general environment,
but in low temperature and low humidity environments it is possible that contamination
can occur on the entire image
b) When the ZENER diode is disconnected a blank page is printed out. (It is the same when
a ZENER diode is disconnected from OPC ground.)
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Product spec and feature
2.2.5.2 SMPS (Switching Mode Power Supply)
ItThis is the power source for the whole system. It is an independent module so that it is possible to use it for
common use. It is mounted at the bottom of the set.
It consists of the SMPS section, which supplies the DC power to drive the system, and the AC heater control
part, which supplies the power to the fuser. The SMPS has four output channels ((+5V, -5V, +12V, +12Vand
+24Vs).
There are three kinds of power, 120V exclusive (America), 220V exclusive (Europe), and 220V for China
(nations with unstable power supply).
1) AC Input
- Inputting rated voltage : AC 220V ~ 240V AC 100~127V
- Inputting voltage fluctuating range : AC 198V ~ 264V AC 90V ~ 135V
- Rated frequency : 50/60 Hz
- Frequency fluctuating range : 47 ~ 63 Hz
- Inputting Current : Under 4.0Arms/2.0Arms
2) Rated Power Output
NO
1
Item
Channel name
CH1
+5V
CH2
-5V
CH3
+24.0V
CH4
+24.0VS
2
CONNECTOR PIN
CON 2
CON2
CON2
CON2
3.3V PIN: 3, 4
GND PIN: 5, 6
-5V PIN : 7
GND PIN: 8
24V PIN: 11, 12
GND : 9, 10
24V PIN: 13, 16
GND : 18
3
Rated outputting voltage
+5V 5%
-5V 5%
+24V 10%
+24V 10%
(4.75 ~ 5.25V)
(-4.75~-5.25V)
(21.6 ~ 26.4V)
(21.6 ~ 26.4V)
4
5
6
Rated outputting current
Ripple noise voltage
Maximum output
1.5 A
0.5A
1.5 A
1.0 A
150mVp-p
7.5W
150mVp-p
0.6W
500mVp-p
36.0W
500mVp-p
24.0W
3) Consumption Power
NO
Item
CH1
CH2
CH3
CH4
System
(+5V)
(+12V)
(+24V)
(+24VS)
1
Stand-By
1.0 A
0.05A
1.0 A
0.5 A
AVG : 60 Wh : 220V
AVG : 75 Wh : 110V
2
3
Operating
1.5 A
0.3A
0.5A
0.0A
1.5 A
0.0A
1.0 A
AVG : 320 Wh
AVG : 15 Wh
Sleep-Mode
0.06A
4) Length of Power Cord : 1830 50mm
5) Power Switch : Fitted
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Product spec and feature
6) Feature
- Insulating resistance : over 50MΩ (at DC500V)
- Insulating revisiting pressure : Must be no problem within 1min. (at 1500Vzc, 10mA)
- Leaking current : under 3.5mA
- Running current : under 40A peak (at 25°c, Cold start) Under 60A peak (in other conditions)
- Rising Time : Within 2Sec
- Falling Time : Over 20ms
- Surge : Ring Wave 6KV-500A (Normal, Common)
7) Environment Condition
- Operating temperature range : 0°c ~ 40°c
- Storage temperature range : -25°c ~ 85°c
- Storage humidity range : 30% ~ 90% RH
- Operating atmospheric pressure range : 1
8) EMI Requirement : CISPR ,FCC, CE, MIC, C-Tick,
9) Safty Requrement
- IEC950, C-UL, TUV,Semko,iK,CB, CCC, EPA,
2.2.5.3 Fuser AC Power Control
The Fuser (HEAT LAMP) is heated using AC power. The AC power is controlled by a Triac (THY1), a
semiconductor switch. 'On/Off control' is achieved when the gate of the Triac is turned on/off by a Photo
triac (PC1), this is an insulting part.
In the other words the AC control part is a passive circuit. It turns the heat lamp on/off by taking a signal
from the engine control section. When the 'HEATER ON' signal is activated by the engine the LED of PC1
(Photo Triac) flashes. The flashing light causes the Triac (PC1) to switch and a voltage is supplied to the
gate of Triac THY1.
As a result AC current flows in the heat lamp, and heat is produced.
On the other hand, when the signal is off, PC1 is off, the voltage is cut off at the gate of Triac THY1, this
Triac is therefore off, and thus the heat lamp is turned off.
1) Triac (THY1) feature
- 12A,600V SWITCHING
2) Phototriac Coupler (PC3)
- Turn On If Current : 15mA ~ 50mA(Design: 16mA)
- High Repetive Peak Off State Voltage : Min 600V
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Product spec and feature
2.2.6 Engine F/W
2.2.6.1 Feeding
If feeding from the cassette the drive of the pickup roller is controlled by controlling the pick-up solenoid.
The on/off of the solenoid is controlled by controlling the general output port or the external output port. If
feeding from the manual feeder the set decides to feed the paper according to the operation of the manual
sensor, and by driving the main motor, insert the paper in front of the feed sensor. When paper moves the
occurrence of a paper jam is judged as below.
2.2.6.1(a) Jam 0 – Jam in Feed area
• After a page was picked up, paper did not enter the unit due to a paper misfeed.
• After a page was picked up, paper entered but it did not reach the feed sensor in certain time due to slip, etc.
• After a page was picked up, if the feed sensor is not on try to pick up again. After retrying if the feed
sensor is still not on after certain time, it is Jam 0.
- this indicates that the leading edge of the paper doesn't pass the feed sensor within a certain time.
• Even though the paper reaches the feed sensor, the feed sensor does not turn on.
- this indicates that the leading edge of the paper already passed the feed sensor or that the sensor is
fauty.
2.2.6.1(b) Jam 1 – Jam inside the print engine
• After the leading edge of the paper passes the feed sensor, the trailing edge of the paper does not pass
the feed sensor within certain time. (During this time the feed sensor cannot be Off)
• After the leading edge of the paper passes the feed sensor, the paper does not reach the exit sensor with-
in certain time. (The exit sensor cannot be On during this time)
- There is already paper between the feed sensor and the exit sensor.
2.2.6.1(c) Jam 2 – Jam in the Exit area
• After the trailing edge of the paper passes the feed sensor the trailing edge of the paper does not pass
the exit sensor within certain time.
2.2.6.2 Drive
The main motor drives the paper feed, developing unit and the Fuser It is driven by software which controls
the acceleration, constant speed and deceleration profiles. The Motor is managed with an A3977 driver IC
and controlled by step and enable signals from the CPU.
2.2.6.3 Transfer
The charging voltage, developing voltage and the transfer voltage are controlled by PWM (Pulse Width
Modulation). Each output voltage is changeable according to the PWM duty cycle. The transfer voltage
used when the paper passes the transfer roller is decided by environment recognition. The resistance value
of the transfer roller changes due to the surrounding environment in the room or within the set, this change
in resistance in turn changes the value of the voltage due to loading. This voltage is fed back into the set
through the A/D converter. Based on this fed back value the PWM cycle is changed to maintain the
required transfer voltage
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Product spec and feature
2.2.6.4 Fusing
The temperature of the heat roller's surface is detected according to the resistance value of the thermistor.
The thermistor resistance is measured using the A/D converter and thus the CPU can determine the
temperature of the heat roller. The AC power is controlled by comparing the target temperature to the value
from the thermistor. If the value from the thermistor is out of the controlling range while controlling the fusing
process, the error stated in the table occurs. (For the domestic model, the Q-PID method has been applied.)
Error Type
Error
Description
Open heat error
When warming up, it has been lower than 68 °C over 25 sec
Lower heat error
• Standby:
It has been lower than 100°C over 25 sec
• Printing:
- 2 consecutive pages: it has been lower than 145°C over 5 sec
- 3 consecutive page; it has been 40°C lower than the fixed fusing temperature over 4 seconds.
Over heat error
It have been higher than 220°C over 3 seconds
2.2.6.5 LSU
The LSU consists of the LD (Laser Diode) and the polygon motor control. When the printing signal occurs,
the LD is turned on and the polygon motor is enabled. When the light sensor detects the beam, Hsync occurs.
When the polygon motor speed becomes a normal, LReady occurs. If these two conditions are satisfied, the
status bit of the LSU controller register becomes 1 ant the LSU is judged to be ready. If the two conditions
are not satisfied, the error shown in the table below occurs.
Error
Description
Polygon motor error
When the polygon motor’s speed doesn’t become a normal
Hsync error
The polygon motor’s speed is normal, but the Hsync signal is not created.
2.2.7 OPE PBA
The OPE board consists of various function keys and an LCD to display set status and operator messages.
A MICOM (HOLTEC HT48R50) and drives the LEDs and LCD. Communication between the OPE and the
CPU on the main board is serial (related signals are /Reset, TXD, and RXD).
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Disassembly and Reassembly
3. Disassembly and Reassembly
3.1 General Precautions on Disassembly
When you disassemble and reassemble compo-
Releasing Plastic Latches
nents, you must use extreme caution. The close
proximity of cables to moving parts makes proper
routing a must.
If components are removed, any cables disturbed
by the procedure must be restored as close as
possible to their original positions. Before remov-
ing any component from the machine, note the
cable routing that will be affected.
Many of the parts are held in place with plastic
latches. The latches break easily; release them
carefully.
To remove such parts, press the hook end of the
latch away from the part to which it is latched.
Whenever servicing the machine, you
must perform as follows:
1. Check to verify that documents are not stored
in memory.
2. Be sure to remove the toner cartridge before
you disassemble parts.
3. Unplug the power cord.
4. Use a flat and clean surface.
5. Replace only with authorized components.
6. Do not force plastic-material components.
7. Make sure all components are in their proper
position.
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Disassembly and Reassembly
3.2 White Roller Ass,y
1. Open the OPE Unit.
2. Push the Bushing on RH end of the roller slightly inward,
then rotate it until it reaches the slot as shown below.
Then lift the roller out.
White Roller
2
Bush
1
Note: Check the roller for any dirt. Clean with a soft cloth
dampened with water.
If the roller is heavily worn replace it with a new one.
3.3 Rear Cover
1. Remove the four screws securing the Rear Cover and
remove it, as shown below.
2. Unlatch the Face up Cover Securing the Rear Cover,
as shown below. Then lift the Face up Cover out.
Rear Cover
Cover-Face up
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Disassembly and Reassembly
3.4 Side Cover L
1. Before you remove the Side Cover L, you should
remove:
3. If necessary, remove the two screws securing the
Speaker and remove it.
- Remove handset and cradle.
2. Release the latches from Frame Ass,y in the direction
of the arrow, as shown below. Take care to disconnect
speaker harness.
Side Cover L
Speaker
Bracket
3.5 Side Cover R
1. Before you remove the Side Cover R, you should
remove:
2. Release the latches from Frame Ass'y in the direction
of the arrow, as shown below.
- Rear Cover (see section 3.3)
Side Cover R
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Disassembly and Reassembly
3.6 OPE Unit
1. Before you remove the OPE Unit, you should remove:
- Rear Cover (see section 3.3)
4. Carefully release the latches from Top Cover in the
direction of the arrow, as shown below.
2. Unplug the OPE connector from the Main PBA and
Scan Motor Harness, as shown below.
Then remove the two screws securing the Ground
Cable and remove it. Note the position of the bronze
earth plate.
1
OPE Unit
Speaker
2
5. Remove the two screws securing the Scan Upper
Ass'y and remove it.
OPE
3. Open the OPE and release the latch from Holder, as
shown below.
Scan
Upper Ass'y
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Disassembly and Reassembly
6. Remove the seven screws securing the OPE PBA
and remove it.
8. Remove the Key Pad from the OPE Cover.
OPE PBA
Key Pad
7. Remove the Contact Rubber from the OPE Cover.
Contact Rubber
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Disassembly and Reassembly
3.7 ADF Rubber Pad
1. Before you remove the ADF Rubber Pad, you should
remove:
- Rear Cover (see section 3.3)
- OPE Unit (see section 3.6)
2. Insert a flat-blade screwdriver into the slot as shown
below, and release the latches.
Take out the Rubber Holder and the Rubber Pad.
Rubber Pad
Rubber Holder
Note:
• When you reassemble the Rubber Pad, be sure that
the Rubber Pad and Holder fit into the Guide Boss
and the Holder latches fit into the corresponding holes.
Then push firmly until it clicks.
• Clean the surface of the Rubber Pad with ethyl alcohol.
After wiping it, be sure to dry it. Check the rubber for
wear. If the wear reaches 1/2 it's original thickness,
replace it with a new one.
3-6
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Disassembly and Reassembly
3.8 CIS
1. Before you remove the CIS, you should remove:
- White Roller Ass'y (see section 3.2)
- Rear Cover (see section 3.3)
3. Unlatch the CIS using a flat-blade screwdriver and
release it, as shown below. Disconnect harness from
CIS unit.
2. Unplug the CIS connector from the Main PBA. (CN14)
CIS
1
CIS
CIS
2
3.9 Exit Roller
1. Open the OPE Unit.
2. Pull up the Exit Roller using a flat-blade screwdriver
and remove it, as shown below.
Exit Roller
2
1
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Disassembly and Reassembly
3.10 Front Cover Ass'y
1. Take out the Cassette.
3. Unlatch the Front Cover from the Frame Ass'y. Then
remove the Front Cover, as shown below.
Cassette
Front Cover
2. Open the Front Cover.
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Disassembly and Reassembly
3.11 Scan Ass'y
1. Before you remove the Scan Ass'y, you should
remove:
3. Remove the four screws securing the Top Cover and
remove the Scan Ass'y, as shown below.
- Rear Cover (see section 3.3)
- Side Cover L (see section 3.4)
- Side Cover R (see section 3.5)
- Front Cover (see section 3.10)
Scan Ass'y
2. Unplug the three connectors (OPE, CIS, scan motor)
from the Main PBA. Then remove the two Ground
Cables, as shown below.
OPE
CIS
CIS
OPE
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Disassembly and Reassembly
3.12 Scan Motor Ass'y
1. Before you remove the Scan Motor Ass'y, you should
remove:
3. Remove the three silver screws securing the Scan
Motor Ass'y and remove it.
- Rear Cover (see section 3.3)
- Side Cover L (see section 3.4)
- Side Cover R (see section 3.5)
- OPE Unit (see section 3.6)
- Front Cover (see section 3.10)
- Scan Ass'y (see section 3.11)
2. Open the OPE Unit.
Scan Motor Ass'y
4. If necessary, remove the one screw securing the Scan
Motor and release the latches from Motor Bracket in
the direction of the arrow, as shown below.
1
Scan Motor
2
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Disassembly and Reassembly
3.13 ADF Roller
1. Before you remove the ADF Roller, you should
remove:
3. Carefully release the ADF Roller from Top Cover in
the direction of the arrow, as shown below.
- Rear Cover (see section 3.3)
- Side Cover L (see section 3.4)
- Side Cover R (see section 3.5)
- Front Cover (see section 3.10)
- Scan Ass'y (see section 3.11)
- Scan Motor Ass'y (see chapter 3.12)
2
2. Carefully release the ADF Gear from the ADF Roller,
as shown below.
1
ADF Roller
2
1
ADF Gear
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Disassembly and Reassembly
3.14 Sub Hook PBA
1. Before you remove the Sub Hook PBA, you should
remove:
3. Remove the one screws securing the Sub Hook PBA
and remove it.
- Rear Cover (see section 3.3)
- Side Cover L (see section 3.4)
Sub Hook PBA
2. Unplug the one connector from the Sub Hook PBA,
as shown below.
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Disassembly and Reassembly
3.15 Drive Ass'y
1. Before you remove the Drive Ass'y, you should
remove:
- Rear Cover (see section 3.3)
- Side Cover L (see section 3.4)
2. Remove the six screws securing the Drive Ass'y and
remove it. Then unplug the one connector from the
Drive Motor, as shown below.
Drive Ass'y
Note : When re-fitting the Drive Ass’y tighten the screws
in the order that they are numbered on the base
plate.
3.16 DC-Fan
1. Before you remove the Fan, you should remove:
- Rear Cover (see section 3.3)
2. Unplug the one connector from the SMPS, as shown
below. Then take out the Fan.
- Side Cover R (see section 3.5)
DC Fan
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Disassembly and Reassembly
3.17 Exit Cover Ass'y
1. Before you remove the Exit Cover Ass'y, you should
remove:
3. Remove the Exit Gear and Bearing using a flat-blade
screwdriver, as shown below.
- Scan Ass'y (see section 3.11)
- Sub High PBA (see section 3.14)
Then take out the Exit Roller.
Exit Gear
Bearing
2. Remove the four screws securing the Exit Cover Ass'y
and remove it, as shown below.
2
Exit Roller
1
Exit Cover Ass'y
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Disassembly and Reassembly
3.18 LSU-Unit
1. Before you remove the LSU, you should remove:
- Scan Ass'y (see section 3.11)
3. Remove the four screws securing the LSU and
remove it.
2. Unplug the two connectors from the LSU, as shown
below.
LSU
3.19 Engine Shield Ass'y
1. Before you remove the Engine Shield Ass'y, you
should remove:
- Rear Cover (see section 3.3)
- Side Cover L (see section 3.4)
- Side Cover R (see section 3.5)
2. Remove the twelve screws securing the Engine Shield
Ass'y and remove it. Then unplug the all connectors
from the SMPS and Main PBA, Main High PBA.
Engine Shield
Ass'y
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Disassembly and Reassembly
3.20 Main PBA
1. Before you remove the Main PBA, you should
remove:
- Engine Shield Ass,y (see section 3.19)
2. Remove the three screws securing the Main PBA and
remove it. Then carefully release the latches from
Supporter, as shown below.
Main PBA
2
Supporter
1
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Disassembly and Reassembly
3.21 SMPS
1. Before you remove the SMPS, you should remove:
- Engine Shield Ass,y (see section 3.19)
4. Remove the four screws securing the SMPS and
remove it. Then Lift the SMPS out, as shown below.
2. Remove the three screws securing the Inlet Bracket
and remove it.
Inlet Bracket
SMPS
3. Unplug one connector.
3-17
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Disassembly and Reassembly
3.22 Fuser Ass'y
1. Before you remove the Fuser Ass'y, you should
remove:
- Engine Shield Ass,y (see section 3.19)
4. Remove the two screws securing the Halogen Lamp.
Then take out the Halogen Lamp from the Heat
Roller, as shown below.
2. Unplug the two connectors from the Main PBA and
SMPS, as shown below. Then remove the four
screws securing the Fuser Ass'y and remove it.
Heat Roller
Fuser Ass'y
Halogen Lamp
5. Remove one screw securing the Idle Gear and
remove it.
3. Remove the two screws securing the Thermostat.
Then lift the Thermostat out.
Idle Gear
Thermostat
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Disassembly and Reassembly
6. Remove the four screws securing the Fuser Cover
and remove it, as shown below.
8. Remove the one screw securing the Thermister and
remove it, as shown below.
Claw
Fuser Cover
Thermister
7. Unwrap the Thermister Harness, as shown below.
Thermister Harness
3-19
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Disassembly and Reassembly
3.23 Transfer Ass'y
1. Before you remove the Transfer Ass'y, you should
remove:
3. Unplug the PTL Holder connector, then remove the
PTL Holder and PTL Lens, as shown below.
- LSU (see section 3.18)
PTL
PTL
Holder
Lens
2. Remove the three screws securing the Transfer Earth
and remove it.
Transfer
Earth
4. Release the frame latch at the R side of the Transfer
roller and lift the roller out. Release the latch on each
bush and lift them out.
Transfer
Roller
Bush
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Disassembly and Reassembly
3.24 Feed Ass'y
1. Before you remove the Feed Ass'y, you should
remove:
4. Remove the three screws securing the Feed Bracket
and remove it.
- Scan Ass'y (see section 3.11)
- Drive Ass'y (see section 3.15)
- LSU (see section 3.18)
Feed Bracket
2. Remove the two screws securing the Paper Guide
and remove it.
Paper Guide
5. Remove the Idle Gear and Feed Gear2.
Feed Gear2
3. Pull up the Feed Idle Bush and Feed Idle Shaft, as
shown below.
Feed Idle
Shaft
Bush
Idle Gear
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Disassembly and Reassembly
6. Remove the Feed Gear1 Ass'y.
7. Pull up the Feed Roller and Feed Roller1.
Feed Roller
Feed Gear1
Ass'y
Feed Roller1
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Disassembly and Reassembly
3.25 Pick up Ass'y
1. Before you remove the Pick up Ass'y, you should
remove:
3. Take out the Pick up Ass'y, as shown below.
- Scan Ass'y (see section 3.11)
- Drive Ass'y (see section 3.15)
- LSU (see section 3.18)
- Engine Shield Ass,y (see section 3.19)
2. Remove the Pick up Gear Ass,y.
Pick up Gear
Ass'y
Bush
1
2
Pick up Ass'y
3.26 Solenoid
1. Before you remove the Solenoid, you should remove:
- Scan Ass'y (see section 3.11)
2. Remove the two screws securing the Manual
Solenoid and Pick up Solenoid.
- Feed Ass'y (see section 3.25)
Then remove Manual Solenoid and Pick up Solenoid.
- Pick up Ass'y (see section 3.26)
(Pick up)
Solenoid
(Manual)
Solenoid
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Alignment & Troubleshooting
4. Adjustment and Troubleshooting
4.1 Alignment and Adjustments
4.1.1 Paper path
ADF Part
9
ADF R
WR
ER
10
Engine Part
3
4
L S U
CR
Fuser
Toner Cartridge
DR
OPC
2
SR
PR
7
TR
6
FR
8
5
1
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Alignment & Troubleshooting
4.1.1.1 Copy & Scan Document Path
9
ADF Part
ADF R
WR
ER
10
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Alignment & Troubleshooting
4.1.1.2 Printer Paper Path
1) After receiving print job the printer feeds printing paper from the cassette or manual feeder.
2) The fed paper passes the paper feeding sensor. (Jam 0 occurs if the sensor is not operated within a cer-
tain time)
3) After passing the feed sensor the paper passes through the print process to the paper exit sensor.
(Jam 1 occurs if the sensor is not operated by the paper’s leading edge within a certain time)
4) After passing the exit sensor paper exits from the set. (Jam 2 occurs if the trailing edge of the paper
does not pass the exit sensor within a certain time)
Engine Part
3
L S U
Fuser
Toner Cartridge
CR
DR
OPC
2
SR
PR
7
TR
6
FR
4
/
CK
I
P
5
1
1
2
3
4
5
6
7
Paper Input (Cassette)
Paper Input (Manual Feed)
Paper Out (Face Down)
Paper Empty Sensor (Cassette)
Paper Feed Sensor
Paper Exit Sensor
Paper Empty Sensor (Manual)
4-3
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Alignment & Troubleshooting
4.1.2 Clearing Paper Jams
Occasionally paper can become jammed during a print job. Some of the causes include:
• The tray is loaded improperly or overfilled.
• The tray has been pulled out during a print job.
• The front cover has been opened during a print job.
• Paper was used that does not meet paper specifications.
• Paper that is outside of the supported size range was used.
If a paper jam occurs the On Line/Error LED on the control panel lights red. Find and remove the jammed
paper. If you don't see the paper, open the covers.
Do not use a tweezers, pincers or other metal tools when removing a jam.
This could damage the internal mechanism causing print quality problems or possibly electrical shock..
L S U
L S U
Fuser
Toner Cartridge
CR
Fuser
Toner Cartridge
CR
DR
OPC
SR
EXIT
DR
PR
Sensor
OPC
SR
EXIT
PR
Sensor
MP Sensor
Feed
Sensor
TR
FR
MP Sensor
Feed
Sensor
TR
FR
Empty Sensor
Empty Sensor
Paper Jam0
Paper Jam1
L S U
CR
L S U
Fuser
Fuser
Toner Cartridge
Toner Cartridge
CR
DR
DR
OPC
SR
OPC
SR
EXIT
EXIT
PR
PR
Sensor
Sensor
MP Sensor
Feed
MP Sensor
Feed
Sensor
Sensor
TR
FR
TR
FR
Empty Sensor
Empty Sensor
Paper Jam2
Bypass Jam
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Alignment & Troubleshooting
4.1.2.1 Clearing Document Jams
When a document jams while passing through the ADF (Automatic Document Feeder) "Document Jam" appears on the
display.
4.1.2.1(a) Input Misfeed
1) Remove the remaining documents from the ADF.
2) Pull the jammed document gently out of the ADF.
3) Load the documents back into the ADF.
NOTE :To prevent document jams do not use thick, thin or mixed documents.
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Alignment & Troubleshooting
4.1.2.1(b) Exit Misfeed
1) Remove the remaining documents from the ADF.
2) Open the control panel by gripping its lower front edge and lifting gently.
3) Pull the document gently out of the ADF.
4) Close the control panel, then load the documents back into the ADF.
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Alignment & Troubleshooting
4.1.2.2 Clearing Paper Jams
When a paper jam occurs, "Paper Jam" appears on the display. Refer to the table below to locate and clear the paper jam.
Message
Location of Jam
Paper Jam 0
In the paper tray.
Paper Jam 1
In the fuser area or around the toner
cartridge.
Paper Jam 2
Bypass Jam
In the paper exit area
In the manual feeder
To avoid tearing the paper pull the jammed paper out gently and slowly. Follow the steps on the next pages to clear the jam.
4.1.2.2.1 In the Paper Tray
1) Open and close the front cover. The jammed paper is automatically ejected from the machine. If the paper is not ejected
continue to step 2.
2) Pull the paper tray open.
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Alignment & Troubleshooting
3) Remove the jammed paper by gently pulling it straight out.
If there is any resistance and the paper does not move when you pull or if you cannot see the paper in this area, skip to
the fuser area around the toner cartridge.
4) Insert the paper tray into the machine until it snaps into place.
5) Open and close the front cover to resume printing.
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Alignment & Troubleshooting
4.1.2.3 In the Paper Exit Area
1) Open and close the front cover. The jammed paper is automatically ejected from the machine. If the paper is not
ejected continue to step 2.
2) Gently pull the paper out of the front output tray. Skip to step 6.
If there is any resistance and the paper does not move when you pull or if you cannot see the paper in the front out-
put tray continue to step 3.
3) Open the rear cover.
4) Remove the jammed paper by gently pulling it straight out.
5) Close the rear cover.
6) Open and close the front cover to resume printing.
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Alignment & Troubleshooting
4.1.2.4 In the Fuser Area or Around the Toner Cartridge
NOTE :The fuser area is hot. Take care when removing paper from the machine.
1) Open the front cover and lightly push down on the cartridge then pull to take it out.
2) Remove the jammed paper by gently pulling it straight out.
3) Replace the toner cartridge and close the front cover.
Printing automatically resumes.
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Alignment & Troubleshooting
4.1.2.5 In the Bypass Tray
"Bypass Jam" appears on the display when you try to print using the manual feeder and the machine does not detect
paper due to no paper or improper paper loading.
The error message may also occur when the paper is not properly fed into the machine through the manual feeder.
In this case pull the paper out of the machine.
4.1.2.6 Tips for Avoiding Paper Jams
By selecting the correct paper types most paper jams can be avoided. When a paper jam occurs follow the steps out-
lined in page 6-10
• Follow the procedures on page 6-10 when you load paper. Ensure that the adjustable guides are positioned correctly.
• Do not overload the paper tray. Ensure that the paper is below the paper capacity mark on the inside wall of the paper tray.
• Do not remove the paper from the tray while your machine is printing.
• Flex, fan and straighten the paper before loading.
• Do not use creased, damp or highly curled paper.
• Do not mix paper types in the paper tray.
• Use only recommended print materials. See "Paper Specifications" in the user manual.
• Ensure that the print side of print materials is facing down in the paper tray and facing up in the Bypass tray.
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Alignment & Troubleshooting
4.1.3 User Mode(SF-565PR)
The table below shows the map of User settings available in User Mode. These are fully described in the
User Guide and are not included here.
1. Paper Setting
2. Copy Setup
3. Fax Setup
Ring to Answer
Darkness
Paper Type
Paper Size
Default-Change
Timeout
Redial Term
Redials
MSG Confirm.
Auto Report
Auto Reduction
Discard Size
Receive Code
6. Reports
5. Advanced Fax
4. Fax Feature
Phone Book
Send Report
RCV Report
System Data
Scheduled Jobs
MSG Confirm.
Junk Fax List
Send Forward
RCV Forward
Toll Save
Junk Fax Setup
Secure Receive
Prefix Dial No
Stamp RCV Name
ECM Mode
Delay Fax
Add Page
Cancel Job
Delay Rx Poll
7. Sound/Volume
8. Machine Setup
9. Maintenance
Speaker
Ringer
Key Sound
Alarm sound
Machine ID
Date &Time
Clock Mode
Language
Clean Drum
Notify toner
Clear Memory
Adjust Shading
Power Save
Ignore Toner
USB Mode
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Alignment & Troubleshooting
4.1.4 Tech Mode
4.1.4.1 How to Enter Tech Mode
In service (tech) mode the technician can check the machine and perform various tests to help with failure
diagnosis.
When in Tech mode the machine still performs all normal operations.
To enter the Tech mode
To enter the Tech mode press in sequence
and the LCD
briefly displays 'TECH', the machine has entered service (tech) mode.
4.1.4.2 Tech Mode settings map
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Alignment & Troubleshooting
4.1.4.3 Data Setup
SEND LEVEL
You can set the level of the transmission signal. Typically, the Tx level should be under -12 dBm.
Caution : The Send Fax Level is set to the best condition during manufacture. Never change settings arbitrarily.
DIAL MODE
This function can choose the dialing method.
*Default : Dial (Dial/Pulse)
MODEM SPEED
You can set the maximum modem speed.
When the fax establishes communication with a remote set the value of the maximum modem speed is
checked for both transmitter and receiver. The lowest value is used. It is best set at 33.6Kbps, the default
setting.
ERROR RATE
When the error rate is about exceed the set value, the Baud rate automatically adjusts to 2400 bps.
This ensures that the error rate remains below the set value.
You can select the rate between 5% and 10%.
CLEAR ALL MEMORY
The function resets the system to factory default settings.
This function is used to reset the system to the initial value when the product is functioning abnor-
mally. All the values are returned to the default values, and all the information which was set by the
user will be erased.
< Method >
1. Select the [MEMORY CLEAR] in TECH MODE.
2. Push the ENTER button.
3. Select your country. (There are four country groups. Refer to the table below.)
4. Push the ENTER button then it will clear all memory.
NOTICE : Always perform a memory clear after replacing the main board, otherwise the system may
not operate properly.
Country Group
USA/Canada
USA/Canada
Mexico
UK
Russia
Russia
India
South Africa
South Africa
UK
Germany
France
Brazil
Oman
Italy
Poland
Spain
Austria
Bangladesh
Kuwait
Netherlands
Belgium
Portugal
Sweden
Norway
Denmark
Finland
Switzerland
Greece
Ireland
Morocco
Algeria
Pakistan
UAE
Bahrain
Sri Lanka
Saudi Arabia
Chile
Country
Peru
Argentina
Hungary
Romania
Bulgaria
Czech
Turkey
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Alignment & Troubleshooting
FLASH UPGRADE
There are 2 methods to update the Flash Rom, Local and Remote.
(1) Local Machine
• RCP (Remote Control Panel) mode
This method is for Parallel Port or USB Port. Connect the PC and activate the RCP (Remote Control Panel) to
upgrade the Firmware.
< Method >
How to Update Firmware using RCP
1. Connect PC and Printer with a USB Cable.
2. Run the RCP utility and select Firmware Update.
3. Search for the Firmware file to be used to update the set using the Browse Icon.
4. Click the Update icon. The firmware file is transmitted to the Printer automatically and the printer is
initialized when the download completes.
5. Click the Refresh icon and check that the updated version numbers are displayed.
• DOS Command mode
This method is ONLY for Parallel Port. Connect the PC to the set using a Parallel Cable and enter the DOS
Command to upgrade the firmware.
< Method >
1. First of all you need the following files : down.bat, down_com.bin, fprt.exe, and Rom File: (file name for
upgrade). Ensure you save ALL of these files in the same folder.
2. At the DOS prompt enter the correct command (as shown below) and push the enter key.
Then the upgrade will automatically take place..
3. There are two commands use the correct one depending on the condition of the set..
* When the product is in the idle condition
down "rom file"
* When the product is in Ready condition
(TECH MODE --> DATA SETUP --> FLASH UPGRADE --> LOCAL)
fprt "rom file"
4. Do not turn off the power during the upgrade process.
(2) Remote FAX
It is possible to use a set that already has the latest firmware to upgrade a remote set remotely using the tele-
phone system.
< Method >
1. On the set that has the latest firmware set it toi transmit the upgrade:-
(TECH MODE •DATA SETUP•••• FLASH UPGRADE•••• REMOTE)
2. Enter the telephone number of the set that needs to be upgraded.
(Several faxes can be upgrade at the same time. In this case, enter each fax number.)
3. When the enter button is pressed the set sends the firmware file by calling designated fax number.
(Around 10~15 minutes are needed to send the file.)
< Caution >
1. The Sending and Receiving fax machines MUST be the same model.
2. The sending fax must be set up in ECM mode and the Receiving fax memory must be 100%.
If not the function will not work.
4-15
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Alignment & Troubleshooting
4.1.4.4 Machine Test
SWITCH TEST
Use this feature to test all keys on the operation control panel. The result is displayed on the LCD
window each time you press a key.
MODEM TEST
Use this feature to hear various transmission signals to the telephone line from the modem and to
check the modem, amplifier and speaker. If no transmission signal sound is heard, it means the
modem part of the main board, amplifier, speaker or speaker harness is faulty.
DRAM TEST
Use this feature to test the machine's DRAM. The result appears in the LCD display.
If all memory is working normally, the LCD shows << O K >>
ROM TEST
Use this feature to test the machine's ROM. The result and the software version appear in the LCD display.
• FLASH VER : 1.00 V
• ENGINE VER :1.00V
PATTERN TEST
Using this pattern printout you can check that the printer mechanism is functioning properly.
This function is for factory manufacturing use only.
SHADING TEST
The function is used to set the optimum scan quality determined by the specific characteristics of
the CIS (Contack Image Sensor). If copy
image quality is poor perform this function
to check the condition of the CIS unit.
< Method >
1. Select the [Shading Test] in
TECH MODE(Manu, #, 1934).
2. Push the ENTER button and an image
will be scanned.
3. After scanning the CIS SHADING
PROFILE will be print out.
4. If the printed image is different to the
sample image shown the CIS is defective.
NOTICE : When you test the CIS, make
sure that the cover is closed.
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Alignment & Troubleshooting
4.1.4.5 Report
PROTOCOL LIST
This list shows the sequence of the CCITT group 3 T.30 protocol during the most recent sending or receiving
operation. Use this list to check for send and receive errors. If a communication error occurs while the machine
is in TECH mode, the protocol list will print automatically.
SYSTEM DATA
This list provides a list of the user system data settings and tech mode settings.
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Alignment & Troubleshooting
4.1.5 Engine Test Mode
The Engine Test Mode supplies useful functions to check the condition of the print engine. It tests the con-
dition of each device and displays the result of the test on the LCD. It is divided into 5 functions (0~4), and
these are shown below.
4.1.5.1 To enter the Engine Test Mode
To enter the Engine Test mode
Press
in sequence, and the LCD briefly displays
‘Engine Test’, the machine has entered Engine Test Mode.
Press “0”, “1”, “2”, “3” or “4” to select the Test No. (see list below – left hand column)
4.1.5.2 Diagnostic
NO.
01
Sub No.
Engine test
Test
Remark
On,
Motor
1
:
2
:
2
3
4
5
1
2
3
1
Pick Up Test
Fan Test
1 : On, 2 : Off – next test selected
1 : On, 2 : Off – next test selected
1 : On, 2 : Off – next test selected
1 : On, 2 : Off – next test selected
1 : On, 2 : Off – next test selected
1 : On, 2 : Off – next test selected
1 : On, 2 : Off – next test selected
1. Check : read the sensor
2. Next : Next Sensor test
1. Check : read the sensor
2. Next : Next Sensor test
1. Check : read the sensor
2. Next : Next Sensor test
1. Check : read the sensor
2. Next : Next Sensor test
1. Check : read the sensor
2. Next : Next Sensor test
1801
Manual Clt Test
PTL Test
1
2
LSU Motor Test
LSU Hsync Test
LD Test
Feed Sensor Test
2
3
4
5
Exit Sensor Test
Cover Sensor Test
Empty Sensor Test
Manual Sensor Text
3
4
1
2
3
4
1
2
3
4
5
6
Therm
ADC
ADC
ADC
:
:
:
On,
On,
On,
Therm
1401
Therm
1201
Therm ADC 100
MHV Test
1 : On, 2 : Off (maintain the fusing temp. 191C)
1 : On, 2 : Off (-1550V 50V)
Dev Bias Test
THV EN/NEG Test
THV ON (1300V)
THV ADC 1300V
THV ADC 600V~3500V
1 : On, 2 : Off (-430V 20V)
1 : On, 2 : Off (-1000V +300V/-150V)
1 : On, 2 : Off (+1300V 20V)
1 : On, 2 : Off (ADC Value : 101 5)
1 : On, 2 : Off (Compare each ADC Value)
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Alignment & Troubleshooting
4.1.6 Identify Sale Date
This function confirms the date that consumer used the product for the first time.
When the consumer first operate the machine, it will start the scan and page counters.
The time the machine was first used is remembered.
These settings are remembered after memory reset (Clear All Memory).
< Method >
Press MENU, #, 1, 9, 3, # in sequence. Firmware version is displayed on LCD.
Press 1( in the number keypad) : The LCD display shows "Updated date"
Press 2( in the number keypad) : The LCD display shows "Product first use date"
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Alignment & Troubleshooting
4.1.7 Consumables and Replacement Parts
The life cycle outlined below is a general guideline for maintenance purposes and is for reference only.
Environmental conditions (temperature, humidity, dust etc.) and actual use can cause these figures to vary.
COMPONENT
ADF Rubber
ADF Roller
REPLACEMENT CYCLE
20,000 Pages
60,000 Pages
Pick-up Roller
Friction Pad
Transfer Roller
Fuser
60,000 Pages
60,000 Pages
60,000 Pages
60,000 Pages
Toner Cartridge
3,000 Pages (A4 ISO 19752 Standard)
4-20
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Alignment & Troubleshooting
4.1.8 Abnormal Image Printing and Defective Roller
If a mark or other printing defect occurs at regular intervals down the page it may be caused by a damaged or
contaminated roller. Measure the repetition interval and refer to the table below to identify the roller concerned.
L S U
Fuser
Toner Cartridge
CR
OPC
DR
SR
PR
MP Sensor
TR
FR
R
/
CK
I
P
5
6
7
Transfer Roller
Heat Roller
1
2
3
4
OPC Drum
Charge Roller
Supply Roller
Developing Roller
Pressure Roller
No
1
Roller
Abnormal image period
75.5mm
Kind of abnormal image
OPC Drum
Charge Roller
Supply Roller
Develop Roller
Transfer Roller
Heat Roller
White spot, Block spot
2
37.7mm
Black spot
3
37.0mm
Horizontal density band
Horizontal density band
Black side contamination/transfer fault
Black spot and fuser ghost
Black side contamination
4
35.2mm
5
45.3mm
6
66.3mm
7
Pressure Roller
75.5mm
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Alignment & Troubleshooting
4.1.9 Error Messages
The front panel displays the printer's status or error messages. Refer to the list below for an explanation of these
messages and how to clear problems. The messages and their meanings are listed in alphabetical order, with numbered
messages following.
[Bypass Jam]
Meaning:
Solution:
The machine has detected a paper feed problem from the BYPASS Tray.
Open the side Cover and clear the jam.
Cancel ?
1:Yes 2:No
Meaning:
Solution:
While storing the document in memory the memory has become full.
To cancel the fax job, press the ‘1’ button to accept “Yes.” If you want to send the
pages that were stored press the ‘2’ button to accept “No.” This will send ONLY
the pages stored. The remaining pages should be sent later when
more memory becomes available.
[Comm. Error]
Meaning:
Solution:
A problem with the fax communications has occurred.
Try again.
CRU Fuse Error
Meaning:
The machine has a problem with recognizing the new toner cartridge.
Check the toner cartridge probrem.
Solution:
Document Jam
Meaning:
Loaded document has jammed in the ADF.
Clear the document Jam.
Solution:
[Door Open]
Meaning:
The front cover is not securely latched.
Close the cover until it clicks in place.
Solution:
Group Not Available
Meaning:
You have tried to select a group location where only a single location number can
be used, such as when adding locations for a multi-dial operation.
Just use a one-touch or speed dial number or dial a number manually using the
number keypad.
Solution:
[Incompatible]
Meaning:
The remote machine does not have the requested feature, such as a delayed
transmission.
Solution:
Reconfirm the remote machine’s features.
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Alignment & Troubleshooting
[Jam 1] or [No Cartridge]
Meaning:
Solution:
Paper has jammed inside the unit, or the toner cartridge is not installed.
Clear the jam. Install the toner cartridge.
Line Busy
Meaning:
Solution:
The remote person did not answer or the line is already engaged.
Try again after a few minutes.
[Line Error]
Meaning:
Your machine cannot connect with the remote machine or has lost contact
because of a problem with the phone line.
Solution:
Try again. If the problem persists, wait an hour or so for the line to clear and try
again.Or, turn the ECM on.
Load Document
Meaning:
You have attempted to set up a copy or fax operation with no document loaded.
Load a document and try again.
Solution:
[Low Heat Error]
Meaning:
There is a problem in the fuser unit.
Check thermostat, thermister contact point & Heating Lamp.
Solution:
Open Heat Error
Meaning:
Thermister is not connected to the main board or contact point is poor at power on.
Check thermostat, thermister contact point & Heating Lamp.
Solution:
[Over Heat]
Meaning:
Solution:
The printer has overheated.
Your unit will automatically return to the standby mode when it cools down to
normal operating temperature. If failure persists, check the ELA HOU-FUSER.
[LSU Error]
Meaning:
Solution:
A problem has occurred in the LSU (Laser Scanning Unit).
Use TECH mode to test LSU. Replace the LSU
Memory Full
Meaning:
The memory has become full.
Either delete unnecessary documents, or retransmit after more memory becomes
available, or split the transmission into more than one operation.
Solution:
[No Answer]
Meaning:
The remote machine did not answer after all the redial attempts.
Try again. Make sure the remote machine is OK.
Solution:
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Alignment & Troubleshooting
NO. Not Assigned
Meaning:
Solution:
The speed dial location you tried to use has no number assigned to it.
Dial the number manually with the keypad, or assign the number.
[No Paper]Add Paper
Meaning:
Solution:
The paper cassette is empty. The printer system stops.
Load new paper in the paper tray.
Operation NotAssigned
Meaning:
Solution:
You are doing in the Add/ Cancel operation, but there is no jobs waiting.
Check the display to see if there is any scheduled job. The display should
indicate them in Standby mode, for example, Delay Fax.
[Paper Jam 0]Open/Close Door
Meaning:
Solution:
Paper has jammed in paper feeding area. Paper is jammed in pick-up unit
Press STOP and clear the jam.
[Paper Jam 1]Open/Close Door
Meaning:
Solution:
Paper has jammed inside the unit. Paper has jammed in paper exit unit.
Clear the jam.
[Paper Jam 2]Check Inside
Meaning:
Solution:
Paper has jammed inside the unit. Paper has jammed in fuser area.
Clear the jam.
Power Failure
Meaning:
Power has turned off then on and the machine’s memory has not been saved.
You need to start again the job which you were trying to do before the power failure.
Solution:
Retry Redial?
Meaning:
The machine is waiting for the programmed interval to automatically redial.
You can press START to immediately redial, or STOP to cancel the redial operation.
Solution:
[Stop Pressed]
Meaning:
The Stop/Clear button is pressed during a copy or fax operation.
Try again.
Solution:
[Toner Empty]
Meaning:
The toner cartridge has run out. The machine stops printing.
Replace with a new toner cartridge.
Solution:
[Toner Low]
Meaning:
Solution:
The toner cartridge is almost empty.
Take out the toner cartridge and gently shake it. By doing this, you can temporarily
reestablish printing operations."
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Adjustment and Troubleshooting
4.2 Troubleshooting
4.2.1 Procedure of Checkig the Symptoms
Before attempting to repair the printer first obtain a detailed description of the problem from the customer.
Power On
- No Power
- Power Module error
- Main PBA error
OP Panel
ON?
- LCD Panel error
Refer to
Error Massage
<Chapter 4.1.9>
Indicate
Error Massage
Ready or
Power save
Test Print
printing
Quality is
Nomal?
Refer to "Solution
of Image Problem"
END
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Adjustment and Troubleshooting
4.2.2 The cause and solution of image quality
1) Vertical Black Line and Band
Description: 1. Straight thin black vertical lines occur in the prnting
2. Dark black vertical bands occurrs in the printing
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
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Adjustment and Troubleshooting
2) Vertical White Line
Description: White vertical voids in the image.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
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Adjustment and Troubleshooting
3) Horizontal Black Bands
Description: Dark or blurry horizontal stripes occur in the printing periodically
(These may occurs at regular intervals down the page.)
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Clean all HV terminals on the cartridge
and on the set frame. Ensure all toner
or paper dust particles are removed.
1. Bad contacts on the toner
cartridge high voltage terminals.
Digital Printer
2. The rollers in the toner
cartridge may be contaminated.
1. Clean the right Gear that has
relatively small tooth gap on the
OPC.
2. If the problem persists replace the
toner cartridge.
1) Charge roller = 37.7 mm
2) Supply roller = 37 mm
3) Develop roller = 35.3 mm
4) Transfer roller = 45.3 mm
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Adjustment and Troubleshooting
4) Black/White Spot
Description:1. Dark or blurry spots occur periodically in the printing
2. White spots occur periodically in the printing
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
1. If dark or blurry black
spots occur periodically,
the rollers in the Developer may be
contaminated with foreign matte or paper particles.
(Charge roller : 37.7 mm interval
OPC drum : 75.5 mm interval)
Print several OPC cleaning Mode
Prints and then run the Self-test 2
or 3 times.
75.5 mm repetition: Examine the
surface of the OPC drum and
carefully clean with a soft, lint free
cloth. If unsuccessful replace the
cartridge.
2. If faded areas or voids
occur in a black image at intervals
of 75.5 mm, or black spots occur elsewhere,
the OPC drum surface is damaged.
37.7mm repetition: Replace the toner
cartridge
The transfer roller guarantees 60,000
sheets printing. If the roller's life is
expired, replace it.
3. If a black image is partially
broken, the transfer voltage is abnormal or the
transfer roller's life has expired.
Note. Cleaning the inside of the set to
remove excess toner particles or
paper dust will reduce the occurrence
of this problem.
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Adjustment and Troubleshooting
5) Light Image
Description: The printed image is light, with no ghost.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
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Adjustment and Troubleshooting
6) Dark image or Black
Description: The printed image is dark.
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Adjustment and Troubleshooting
7) Uneven Density
Description: Print Density is uneven between left and right.
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Adjustment and Troubleshooting
8) Background
Description:Light dark background appears in whole area of the printing.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
The toner cartridge is basically
designed to print 3,000 sheets with
Std. image. If it prints more than
3,600 sheets with 2% coverage,
a background can occur.
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Adjustment and Troubleshooting
9) Ghost(1)
Description: Ghost occurs at 75.5 mm intervals of the OPC drum in the whole printing.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
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Adjustment and Troubleshooting
10) Ghost (2)
Description: Ghost occurs at 75 mm intervals of the OPC drum in the whole printing.
(When printing on card stock or transparencies using manual feeder)
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
When printing on card stock
thicker than normal paper or
transparencies such as OHP, higher
transfer voltage is
Ensure that the correct paper type
is selected in the printer driver or
application software. Remember to
set back to normal paper after use.
required.
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Adjustment and Troubleshooting
11) Ghost (3)
Description: Ghost occurs at 66.3 or 75.5 mm intervals.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Disassemble the fuser and remove
any contamination on the rollers.
Clean any contamination from
between the Thermistor and the
Heat roller. (Caution: Take care not
to deform the rollers.)
1. Fuser contamination.
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Adjustment and Troubleshooting
12) Ghost (4)
Description: A White ghost occurs in a black image printing at 32 mm intervals.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Problem in the toner cartridge,
replace the toner cartridge and try
to print out again.
1. The life of the developer
may be expired.
Check the HVPS supply voltage.
Clean all HV terminals on the
cartridge and on the set. Replace
the HVPS if the problem persists.
2. Abnormal
output from the HVPS.
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Adjustment and Troubleshooting
13) Stains on the Face of Page
Description: The background on the face of the printed page is stained.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
1. Toner leakage due to improperly
sealed toner cartridge.
Replace the toner cartridge.
If the transfer roller is
contaminated, run PC Cleaning
Mode Print 2 or 3 times.
And perform Self-Test 2 or 3 times
to remove contamination.
2. If the transfer roller is
contaminated, stains on the face of
page will occur.
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Adjustment and Troubleshooting
14) Stains on Back of Page
Description: The back of the page is stained at 45.3 or 75.5 mm intervals.
Digita
Digita
Digital Printer
Digital Printer
Digital Printer
Perform the OPC Cleaning Mode
1. 45.3mm : Transfer roller
is contaminated.
Print 2 or 3 times. Run Self-Test to
remove the contamination from the
transfer roller.
Note. Replace the transfer roller if
contaminated severely.
Disassemble the fuser and clean
the H/R(Heat Roller) and P/R
(Pressure roller). Check and clean
the area between the H/R and the
Thermistor. (Caution: Take care
not to deform the rollers.)
2. 75.5mm : Pressure roller
is contaminated.
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Adjustment and Troubleshooting
15) Blank Page Print out (1)
Description: Blank page is printed.
1. Check if the Ground-OPC or the
OPC Ground Zener diode are
defective or open circuit.
1. Bad ground contacts in
OPC and/or toner cartridge.
(set inside left side)
2. Remove contamination of the
terminals on the toner cartridge
and the unit.
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Adjustment and Troubleshooting
16) Blank Page Print out (2)
Description: 1. Blank page is printed.
2. One or several blank pages are printed.
3. When the printer turns on, several blank pages print.
Perform the engine self test using
TECH Mode to check if the
Solenoid is normal.
1. Abnormal solenoid.
If the problem persists replace the
main PBA
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Adjustment and Troubleshooting
4.2.2 Fax & Phone Problems
1) No Dial Tone
Description: There is no dial tone when the On-Hook dial button is pressed.
If the telephone cord is OK but
1. Check that the
telephone line cord supplied
with the set is connected to
TEL LINE correctly.
there is no dial tone, try plugging
a normal telephone into the wall
socket. I this is OK then replace
the Main B'd.
If you cannot hear the OHD
CLICK sound, the OPE Ass'y may
be defective. Replace the
OPE Ass'y.
2. Listen for a CLICK
sound when the OHD key
is pressed.
Use Tech mode / Modem Test to
check that the speaker and
amplifier are working. Replace
the Main B'd.
3. Check that the
SPEAKER is connected correctly.
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Adjustment and Troubleshooting
2) Defective MF DIAL
Description: The MF DIAL is not functioning.
If the telephone cord is OK but
1. Check that the
telephone line cord supplied
with the set is connected to
TEL LINE correctly.
there is no dial tone, try plugging
a normal telephone into the wall
socket. I this is OK then replace
the Main B'd.
If you cannot hear the OHD
CLICK sound, the OPE Ass'y may
be defective. Replace the
OPE Ass'y.
2. Listen for a CLICK sound
when the keKEY is pressed.
Use Tech mode / Modem Test to
check that the speaker and
amplifier are working. Replace
Main B'd in sequence.
3. Check that the
SPEAKER is connected correctly.
Notes: Product supports MF
DIAL type only.
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Adjustment and Troubleshooting
3) Defective FAX FORWARD/RECEIVE
Description: FAX FORWARD/RECEIVE is not functioning.
If MODEM testing is normal and
there is no dial tone, then try
replacing the Main B'd.
1. Check that you can
hear a dial tone by pressing OHD.
2. Check that you can
hear a RECEIVE tone when MODEM
testing in TECH Mode.
If testing the MODEM shows a
fault replace the Main B'd.
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Adjustment and Troubleshooting
4) Defective FAX FORWARD
Description: RECEIVE is functioning, but FORWARD is not functioning or received data is corrupt.
If you can hear a noisy line when
using on-hook dial, replace or
repair the telephone line.
1. Check if there is a
NOISE line by pressing on-hook
dial and listening.
2. Check that the
destination fax machine can
receive forwarded faxes by using a different
sending fax machine (preferably
from the same wall
Replace Main.
socket).
3. Check the cable between
the set and the wall socket
for damage.
Replace the line cord.
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Adjustment and Troubleshooting
5) Defective FAX RECEIVE (1)
Description: FORWARD is functioning, but RECEIVE is not functioning or the received data is corrupt.
If you can hear a noisy line when
1. Check if there is a NOISE
using on-hook dial, replace or
line by pressing on-hook dial
repair the telephone line.
and listening
2. Use a different
fax machine to receive from
the same sender (if possible on the
Replace the Main.
same wall socket).
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Adjustment and Troubleshooting
6) Defective FAX RECEIVE (2)
Description: Received data are lengthened or cut in the printing.
If you can hear a noisy line when
using on-hook dial, replace or
repair the telephone line.
1. Check if there is a NOISE
line by pressing on-hook dial
and listening
2. Ask sender to send
to another fax machine (if possible
connected to the same
wall socket)
Replace main PBA in sequence.
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Adjustment and Troubleshooting
7) Defective FAX RECEIVE (3)
Description: The phone is ringing continuously, but it set does not answer the call.
If the fault persists even when the
1. Check that the RECEIVE
Mode is set to FAX MODE.
RECEIVE Mode is changed to
FAX MODE then replace the
Main B'd in sequence.
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Adjustment and Troubleshooting
8) Defective FAX RECEIVE (4)
Description: Received data is reduced by more than 50% in the printing.
This is a problem with the sending
fax machine.
Correct the setting on the remote
machine.
1. Check the FAX status
of the forwarding side.
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Adjustment and Troubleshooting
9) Defective Automatic Receiving
Description: The automatic receiving function is not working.
1. If the RECEIVE Mode is set to
the TEL MODE, reset it to the
FAX MODE.
1. Check that the RECEIVE
Mode is set to FAX MODE.
2. Even after the RECEIVE Mode
is changed to the FAX Mode,
the problem persists then try to
replace the Main B'd in
sequence.
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Adjustment and Troubleshooting
4.2.3 Copy Problems
1) White Copy
Description: Blank page is printed out when copying.
1. Check the Scanner Cover
is properly closed.
Room light can pass through a
thin original.
Redo shading profile in the
tech mode.
2. Check shading profile.
3. Check white/black
reference voltage on Main PBA. e.q
• CIS_SI, CIS_CLK at Chip(U28)
Replace CN8 if it is defective.
• U28-Pin6 (CIS_SI)
• U28-Pin8 (CIS_CLK)
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Adjustment and Troubleshooting
2) Black Copy
Description: Black page is printed out when Copying.
1. Check for CIS problem
on the Main PBA.
Check the CIS harness is properly
connected.
Redo shading profile in the
tech mode.
2. Check shading profile.
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Adjustment and Troubleshooting
3) Abnormal noise
Description: There is noise from the Platen when copying.
Check for correct assembly of gear
and motor.
1. Check the Scan Motor and gesr.
Ensure no parts are fouling and
there are no foreign objects in the
mechanism or scanner path.
Replace any worn parts.
2. Check the Motor Driver
on Driver PBA.
Replace the main PBA.
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Adjustment and Troubleshooting
4) Defective Image Quality
Description: The copied image is excessively light or dark
Redo shading profile in the
tech mode.
1. Check shading profile.
A gap of more than 0.5 mm can
cause a blurred image. Ensure
cover close correctly. Replace as
necessary.
2. Check the gap between
original and scanner glass.
3. Check printing quality.
See "Print" troubleshooting
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Adjustment and Troubleshooting
4.2.4 Paper Feed problems – Causes and Solutions
1) Wrong Print Position
Description: Printing begins at wrong position on the paper.
Wrong sensor timing caused
Replace the defective actuator
by defective feed sensor
actuator.
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Adjustment and Troubleshooting
2) JAM 0
Description:1. Paper is not exited from the cassette.
2. Jam-0 occurs when the paper feeds into the printer
1. Check the Solenoid by
using Tech Mode.
Replace the solenoid.
2. Check cassette/MP knock-up
plate and springs.
Repair / replace as required
Clean with soft cloth dampened
with IPA (Isopropyl Alcohol) or
water. Replace if required.
3. Check paper separator pad
Clean with soft cloth dampened
with IPA (Isopropyl Alcohol) or
water. Replace if required
4. Check the pick up roller for
contamination and correct assembly.
5. If continuous clusters occur,
check all rollers between pickup and
registration sensor.
Ensure all rollers are clean and
free to operate correctly.
Continue..
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Continue..
6. If the paper feeds into the
Check the SMPS PBA, Main PBA
and all connections.
printer and Jam 0 occurs, perform
Tech Mode to check
feed sensor.
L S U
Fuser
Toner Cartridge
CR
DR
OPC
SR
EXIT
PR
Sensor
MP Sensor
Feed
FR
Sensor
TR
Empty Sensor
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3) JAM 1
Description: 1. Paper is jammed in front of or inside the fuser.
2. Paper is stuck in the exit roller and in the fuser just after passing through the Actuator-Feed.
1. If the recording paper is jammed in
Replace the SMPS or Exit-Sensor.
front of or inside the fuser.
2. If the recording paper is
1. Replace the Main PBA.
stuck in the discharge roller and the
2. Reassemble the Actuator-Feed
fuser just after passing through the
and Spring-Actuator if the
Actuator-Feed, Feed Actuator
movement is bad.
may be defective.
L S U
Fuser
Toner Cartridge
CR
DR
OPC
SR
EXIT
PR
Sensor
MP Sensor
Feed
FR
Sensor
TR
Empty Sensor
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Adjustment and Troubleshooting
4) JAM 2
Description: 1. Recording paper is jammed in front of or inside the fuser.
2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the
Actuator-Feed.
Check if the exit sensor actuator is
1. If the paper is
defective.
• Check if the actuator exit is
deformed (Check if the lever part
completely fed out of the printer,
but Jam 2 occurs : Exit sensor is defective.
• After the paper is completely discharged, actuator
is deformed in shape).
Exit should return to the original position to shut the
• Check whether burrs occur in the
photo-sensor. Sometimes it takes longer
assembly part of the actuator exit
hour than it should and does
or not and if the actuator is
not return.
smoothly operated.
• Check if foreign matter and wire
get caught in the actuator exit's
operation.
2. If the paper is
rolled in the Fuser Roller:
If the paper is stuck in the fuser :
• This occurs when a Guide claw is broken
disassemble the fuser and remove
away or transformed.
the jammed paper, and clean the
• It occurs when the Spring of a Guide claw is broken
surface of the pressure roller with
dry gauze.
away or transformed.
• It occurs when the Heat-Roller or
Pressure-Roller is seriously
contaminated with
the toner.
L S U
Fuser
Toner Cartridge
CR
DR
OPC
SR
EXIT
PR
Sensor
MP Sensor
Feed
FR
Sensor
TR
Empty Sensor
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Adjustment and Troubleshooting
5) Multi-Feeding
Description: Multiple sheets of paper are fed at once.
1. Check that the paper size
guides are set correctly
(cassette and MPF tray).
Adjust paper guides.
2. Solenoid malfunction
(the solenoid does not work properly).
Replace the solenoids or PBA
as appropriate.
Clean the friction pad rubber with
a soft cloth dampened with IPA
(Isopropyl Alcohol) or water.
3. Friction Pad is contaminated.
Use paper with a smother surface
finish.
4. Paper has a rough surface texture.
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Adjustment and Troubleshooting
6) Paper rolled in the fuser
Description: Paper rolled around fuser rollers or ‘Concertina’ jam
After disassembling the fuser,
1. Contamination of the
pressure roller or heat roller.
clean contamination from between
the heat roller and the thermistor
and also clean contamination from
the pressure roller. Clean the
surface of the rollers with IPA or
water.
2. Damaged or deformed
ribs, claws or springs.
Check for damage or deformation
of the print claws and the holder
plate claws, and repair or replace
as appropriate.
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Adjustment and Troubleshooting
7) Paper rolled on the OPC Drum
Description: Paper is rolled up in the OPC.
Use paper that conforms to the printer
specification.
1. Paper is too thin.
Ensure paper is stored properly to prevent
curl.
Note. To remove paper rolled in the OPC.
• Remove the toner cartridge from the set,
taking care not to touch the green surface.
Use the gearwheel at the side to rotate
the OPC drum and pull the paper from
the cassette.
2. The face of paper is curled.
• Clean fingerprints on the OPC gently
with soft tissue, taking care not to
scratch the surface.
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Adjustment and Troubleshooting
4.2.5 Printer Faults – Causes and Solutions
1) Fuser Error
Description: A message "Open Heat Error/Over heat/Heating Error' is displayed in the LCD panel.
Replace the whole fuser assembly
if the thermostat is open circuit.
1. Thermostat, fuser power
cable or heat lamp is open circuit.
Replace the whole fuser assembly
if the thermistor sensor is faulty.
2. Thermistor is open circuit.
Replace the fuser.
3. Heat lamp ON/OFF test
4. Drive gear melted
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Adjustment and Troubleshooting
2) LSU Error
Description: A message “LSU Error” is displayed in the LCD panel.
Use TECH mode to test the LSU
- Replace the LSU
- Replace a main board if the same
error persists after replacing a LSU.
1. LSU cable or connector faulty.
Use TECH mode to test the LSU
- Replace the LSU
- Replace a main board if the same
error persists after replacing a LSU.
2. LSU motor is faulty.
Use TECH mode to test the LSU
- Replace the LSU
- Replace a main board if the same
error persists after replacing a LSU.
3. Check the HSYNC signal.
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Adjustment and Troubleshooting
3) Fuser gear melts due to overheating causing Paper Jam.
Description: Constant Jam where paper is entering Fuser unit.
Fuser rollers do not turn
Use EDC Mode to test the fuser.
Replace Fuser unit
1. Check the Heat Lamp,
thermostat and thermistor
Replace SMPS or Main PBA as
appropriate.
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Adjustment and Troubleshooting
4) Paper Empty
Description: Paper Empty is displayed in the LCD panel even when paper is loaded in the cassette.
1. Deformed paper sensor
actuator or faulty sensor.
Replace the defective actuator or
sensor.
Replace the SMPS PBA or MAIN
PBA as appropriate.
2. SMPS PBA or Main PBA is defective.
3. Faulty cables or connectors.
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Adjustment and Troubleshooting
5) Paper Empty without indication
Description: The paper empty message does not appear in the LCD when the paper cassette is empty.
1. Deformed paper sensor
actuator or faulty sensor.
Replace the defective actuator.
Replace the SMPS PBA or MAIN
2. SMPS PBA or Main PBA
PBA as appropriate.
is defective.
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Adjustment and Troubleshooting
6) Cover Open
Description: The Cover Open message appears on the LCD even when the print cover is closed.
Use TECH mode(“cover sensor
1. The ‘Open Cover’ microswitch
may be stuck or faulty.
test”) to check cover switch
operation. Check and replace
switch if necessary.
2. The tab on the front cover
may be damaged or broken.
Replace the front cover.
3. Check the connector and
cables between Switch and main PBA.
Replace the Main Control board or
Cover Open S/W as necessary.
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Adjustment and Troubleshooting
7) No error message when the cover is open
Description: The Cover Open message does not appears on the LCD even when the print cover is open.
Use TECH mode(“cover sensor
1. The ‘Open Cover’ microswitch
may be stuck or faulty.
test”) to check cover switch
operation. Check and replace
switch if necessary.
Replace the Main Control board or
Cover Open S/W as necessary.
2. Check the connector and cables
between Switch and main PBA.
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Adjustment and Troubleshooting
8) Defective motor operation
Description: Main motor is faulty and paper does not feed into the printer, resulting in Jam 0'
Check the motor harnesses and
1. The main motor harness or
connectors, replace if defective..
Motor PCB may be faulty.
If the problem persists replace the
main PBA.
Note. Check motor operation using
EDC Mode.
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Adjustment and Troubleshooting
9) No Power
Description: When system power is turned on the LCD panel does not come on.
Replace the power supply cord or
SMPS. Check power fuse and
SMPS fuses replace if necessary.
1. Check if the power input and
SMPS output are normal.
2. LCD panel does not come on
but normal start up sounds are heard.
Replace the OP panel.
3. After replacing SMPS
display does not come on and no start
up sounds are heard.
Replace the main PBA panel.
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Adjustment and Troubleshooting
10) Printed Vertical Lines become curved
Description: When printing, vertical lines are not straight.
24V stable - Replace LSU.
24V unstable replace SMPS, if the
problem persists replace the main
PBA.
1. Check stability of 24V supply to LSU.
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Adjustment and Troubleshooting
4.2.6 Toner Cartridge Service
Only authorized toner cartridges should be used. Printing defects or set damage caused by the use of
non-approved toner cartridges or un-licensed toner refills are not covered by the guarantee.
4.2.6.1 Precautions on Safe-keeping of Toner Cartridge
Excessive exposure to direct light for more than a few minutes may cause damage to the cartridge.
4.2.6.2 Service for the Life of Toner Cartridge
If the printed image is light due to the toner supply becoming low you can temporarily improve the print quality by
redistributing the toner (Shake the toner cartridge), however you should replace the toner cartridge to solve the problem
permanently.
4.2.6.2(a) Redistributing Toner
When the toner cartridge is near the end of its life, white streaks or light print occurs. The LCD displays the warning mes-
sage, “Toner Low.” You can temporarily reestablish the print quality by redistributing the remaining toner in the cartridge.
1. Open the Front Cover.
3. Unpack the new toner cartridge and gently shake it hor-
izontally four or five times to distribute the toner evenly
inside the cartridge.
4. Save the box and the cover for shipping. Slide the new
toner cartridge in until it locks into place.
2. Lightly pushing the used cartridge down, pull it out.
Note : Help the environment by recycling your used toner car-
tridge. Refer to the recycling brochure packed with the
toner cartridge for details.
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4.2.6.3 Standard of guarantee for consumable parts.
Please refer to User's Manual or Instructions on Fax/Printer Consumables SVC manual for the criteria for judging the
quality of consumable parts the standard of guarantee on those parts.
• Spotting a refilled cartridge by eye.
One way security screws are used in the manufacture of the cartridge – check if these are damaged.
4.2.6.4 Error messages in the LCD window related to toner.
This section explains messages on the LCD that are related to the data stored in the EEPROM in the toner cartridge.
4.2.6.4(a) Toner Low
- Explanation: The amount of toner remaining is less than 10%
- Solution: The cartridge is almost empty or life-expired – replace the cartridge.
4.2.6.4(b) Toner Empty
- Explanation: The toner cartridge is empty
- Solution: Replace the cartridge.
4.2.6.4(c) Drum Warning
- Explanation: This message appears when the OPC drum is nearing the end of its life (14,000pages). This means
that the life of the mechanical parts in the cartridge has expired (this is not an indication of toner remaining).
- Solution: After printing about 15,000 pages, in a worst case scenario, the waste toner collector might overflow and it
may cause the system to fail. Also after 15,000 pages the OPC drum surface will be becoming worn and print quality
will degrade, print images will become misty. It is therefore necessary to replace the cartridge even though there may
be toner left in it.
When this message occurs there are approximately 1,000 pages left.
4.2.6.4(d) Replace Drum
- Explanation: The toner cartridge mechanical life is expired.
- Solution: Replace the cartridge.
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Adjustment and Troubleshooting
4.2.6.5 Signs and Measures of Poor toner cartridge
Fault
Signs
Cause & Check
Solution
Light image and
partially blank
image
• The printed image
is light or dirty and
untidy.
1. If the image is light or dirty
and untidy - Shake the toner
cartridge and then recheck.
OK: Lack of toner, so the life
is nearly expired.
1. All of 1, 2, 3
If image quality improves by
shaking, replace with a new
toner cartridge. Perhaps up to
100 pages left before out of
toner.
(Cartridge life is
ended.)
• Parts of the image
are not printed.
2. Some part of image is not
printed - Shake the toner
cartridge and then recheck.
(1)NG: clean the LSU window
with a cotton swab, then
recheck.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
• Periodically a "tick
tick" noise occurs.
2. For item 2-
If image quality improves after
cleaning the LSU window then
the toner cartridge is normal.
(Contamination on the LSU
window has caused image
quality problems.)
(2)OK: Lack of toner, so the
life is nearly closed.
3. Periodically a noise like "tick
tick" occurs - Measure the
time between ticks.
3. For item 3-
If the time between ticks is
about 2 seconds, the toner
inside the toner cartridge is
almost exhausted.
( Purchase and replace with a
new toner cartridge. Perhaps up
to 200 pages left before out of
toner)
4. White vertical stripes on the
whole or part of the page :
Shake the toner cartridge and
then recheck. OK: Lack of
toner, so the life is nearly
expired
4. For item 3-
This is a phenomenon caused
by lack of toner, so replace the
toner cartridge.
Toner
• Toner
1. Contamination at regular
intervals.
(a)Check the distance
between contamination
marks.
(b)Check the appearance of
both ends of the toner
cartridge OPC drum.
1.(a) Refer to section 6.5
Contamination
contamination of
the printed page at
regular intervals
down the page.
1.(b) If both ends of the OPC drum
are contaminated with toner:
Check no. of pages printed using
this cartridge – perhaps waste
toner collector is full.
• Random Toner
contamination over
the whole or large
parts of the paper
surface.
2. Random page contamination. 2. Clean all HV contacts. If the
(a) Check that the terminals
(contact points) of the toner
cartridge and the set are
clean.
problem persists replace the
cartridge.
(b) Check that the terminals
(contact points) of the toner
cartridge and the set are not
damaged.
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Adjustment and Troubleshooting
Fault
Signs
Cause & Check
Solution
1. For item 1 -
Run OPC Cleaning Mode Print
4-5 times repeatedly to remove
excess toner. Especially check
for foreign substances on the
OPC surface Clean with a clean
gauze moistened with IPA
1. If light or dark black dots
occur at regular intervals this
is because the toner cartridge
rollers are contaminated with
foreign substance or paper
particles.
(1)38mm interval : Charge
roller
(2)95mm interval : OPC cycle
White Black spot
• Light or dark black
dots on the image
occur periodically.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
• White spots occur
in the image
periodically.
Isopropyl Alcohol) take care not
to damage the OPC surface.
2. If white spots occur in a black
image at intervals of 95mm,
or black spots occur
elsewhere, the OPC drum is
damaged or foreign
Never use other forms of alcohol.
2. For Item 2 -
If running OPC Cleaning Mode
Print 4-5 times does not resolve
the problem
: at intervals of 37.7mm - place
the toner cartridge.
substance is stuck to the
surface.
3. If a black and white or
graphic image is partially
broken at irregular intervals,
the transfer roller's life has
been expired or the transfer
voltage is abnormal.
: at intervals of 75.5mm – clean
OPC drum.
3. For item 3 - Change the transfer
roller because the life of the
transfer roller has expired.
(Check the transfer voltage and
readjust if necessary.)
Recycled product • Poor appearance of 1. Poor appearance of the toner
1. For Item 1 the cartridge is judged
to be a recycled product -
(a) If there is any evidence of
disassembling the toner cartridge.
(b) If materials other than normal
parts of the toner cartridge are
added or substituted.
the toner cartridge.
cartridge.
(a)Check for damage to label
and if different materials are
used.
• Dirty or rough
printouts.
(b)Check the appearance of
parts of the toner cartridge,
such as frame, hopper, screws
• Bad background in
the image.
2. Clean all HV contacts. If the
problem persists replace the
cartridge.
2. Unclean and rough printouts.
(a)Check that the terminals
(contact point) of the toner
cartridge and the set are clean.
(b)Check that the terminals
(contact point) of the toner
cartridge and the set are not
damaged.
Note If the cartridge is judged to be
recycled then these types of
problems can occur when the
toner cartridge is recycled over
2 times.
If ‘nearly empty’ cartridges are
collected for re-use this is
judged as recycling the toner
cartridge.
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Adjustment and Troubleshooting
Fault
Signs
Cause & Check
Solution
Ghost & Image
Contamination
• The printed image
is too light or dark,
or partially
1. The printed image is too light
or dark, or partially
contaminated black.
1. All of Items 1, 2, 3
(a) Clean the contacts on the
toner cartridge.
contaminated black.
(a) Check if foreign substance
or toner are stuck to the
terminals (point of contact)
of the toner cartridge or set.
(b) Check if the terminal
assembly is normal.
(b) Clean the contact points on
the set.
(c) If the terminal assembly is
damaged repair or replace
the terminals in the set or
replace the cartridge
• Totally
contaminated black.
(Black image
printed out)
• The density of
printouts is too dark
and ghost occurs.
2. Totally contaminated black.
(Black image printed out)
(a) Check if foreign
2. In Item 2
This is particularly related to
problems with the charge roller
contact. Pay close attention to
the charge roller contacts.
substances are stuck to
the terminal (point of
contact) of the toner
cartridge or set.
3. In Item 3
(b) Check if the terminal
assembly is normal.
(Especially check the
charge roller terminal.)
This is particularly related to
problems with the developer
bias voltage contact. Pay close
attention to the charge roller
contacts.
3. The printed image is dark and
ghost occurs.
(a) Check if foreign
substances are stuck to
the terminal (point of
contact) of the toner
cartridge or set.
(b) Check if the terminal
assembly is normal.
(Especially check the
developer roller terminal.)
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4.2.7 Software Problems – Causes and Solutions
1) The printer is not working (1)
Description: While Power turned on, the printer is not working in the printing mode.
If the test print works that means there are
no problems in the printer itself.
1. Run Self-Test Mode:
using the menu buttons print the test page.
(Menu, Enter, Enter).
If the test printing does not work that means
the printer is faulty and the problem is not
due to computer software or driver settings.
Replace the printer cable. If the problem is
not solved even after the cable is replaced,
check the amount of the remaining toner.
2. Check that the PC and
the printer are properly connected and
that the toner cartridge installed
correctly.
If you have other devices that need to
share the printer port try temporarily
disconnecting these devices 9and perhaps
even uninstalling their drivers) to ensure
the printer works by itself. If you are using
a USB hub try connecting directly to the
back of the PC instead.
3. Check that the printer cable is
directly connected to the printer.
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Adjustment and Troubleshooting
2) Abnormal Printing
Description: Printing does not work – even after replacing the cable
Printer does not work at all or strange fonts are printed,
Ensure that ECP (best) or SPP is selected
in the CMOS (BIOS) setup.
1. Set up the parallel port
using CMOS SETUP.
Ensure that the correct driver is loaded.
Use the driver supplied on the CD or
downloaded from the web site.
DO NOT use the Microsoft driver supplied
with the Windows operating system. If the
printer is a GDI or SPL type printer ensure
that ALL OTHER GDI or SPL drivers are
uninstalled as Windows allows only 1 of
this type of driver to be loaded.
2. Printer Driver Error.
3. Error message
“insufficient memory”.
(The printing job sometimes stops due to
insufficient virtual memory, this is
caused by insufficient space
on the hard
Delete any unnecessary files to secure
enough space on the hard disk and start
the print job again.
disk.)
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Adjustment and Troubleshooting
3) SPOOL Error
Description: SPOOL (simultaneous peripheral operations online) is the process Windows uses to manage print jobs.
Jobs are processed and then stored on the hard disk until the printer is ready to accept them
1. Insufficient space on the
Delete any unnecessary files to provide
hard disk in the directory assigned
more space for spool storage.
for the basic spool.
There may be files from previous failed
print jobs on the hard disk with the name
in the form ‘*.jnl’.
Delete these files and Reboot Windows to
2. If previous printing
errors were not solved.
restart the printer.
Shut down all other programs except the
current one, if possible.
3. There may be conflict with
other drivers or programs.
4. When an application
program or the printer
driver is damaged.
Delete the printer driver completely and
reinstall it.
After rebooting the computer, check for
viruses, restore the damaged files and
reinstall the application program which is
not working properly.
5. When some files
related to the OS are damaged
or virus infected.
Continue..
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Continue..
Add up more memory to the PC.
6. Memory is less than suggested.
How to delete the data in the spool manager.
In the spool manager, the installed drivers and the list of the documents waiting to be printed are shown.
Select the document to be deleted and check delete in the menu.
If the job you are deleting is the current job when you delete the job data that has already been transferred to the printer’s memory will still be printed.
If there is a problem with the printer (out of toner, offline, out of paper etc.) the job may take a long time to delete as it must wait for a time out.
Service Manual
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Exploded View and Parts list
5. Exploded Views and Parts List
Contents
5.1 Main Exploded View
5-2
5.2 Top Cover Exploded View
5.3 OPE Ass’y Exploded View
5.4 Scan Upper Ass’y Exploded View
5.5 Main Frame Exploded View
5.6 Fuser Unit Exploded View
5.7 Exit Cover Exploded View
5.8 Cassette Unit Exploded View
5-5
5-7
5-9
5-11
5-14
5-16
5-18
DIGITAL LASER MFP
Contents
1. Precautions
2. Product spec and feature
3. Disassembly and Reassembly
4. Alignment & Troubleshooting
5. ExplodedView and Parts list
6. System Diagram
7. Reference Information
5-1
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Exploded View and Parts List
5.1 Main Exploded View
5-2
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Exploded View and Parts List
5.2 Top Cover Exploded View
5-5
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Exploded View and Parts List
5.3 OPE Ass’y Exploded View
4
3
2
1
0
5
11
6
9
7
14
8
12
10
13
15
17
16
5-7
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Exploded View and Parts List
5.4 Scan Upper Ass’y Exploded View
0
3
6
4
5
8
4
2
7
2
1
14
9
13
10
11
12
5-9
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Exploded View and Parts List
5.5 Main Frame Exploded View
5-11
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Exploded View and Parts List
5.6 Fuser Unit Exploded View
0
12
9
8
10
6
7
4
5
14
11
3
2
13
16
1
17
15
18
22
19
23
20
24
21
25
27
26
29
28
5-14
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Exploded View and Parts List
5.7 Exit Cover Exploded View
0
6
7
3
4
5
2
8
14
13
10
11
9
14
15
12
1
5-16
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Exploded View and Parts List
5.8 Cassette Unit Exploded View
0
12
14
13
4
17
16
18
5
6
7
5
3
8
9
2
18
10
18
11
1
15
5-18
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System Diagram
6. System Diagram
6.1 Block Diagram
9-1
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System Diagram
6.2 Connection Diagram
9-2
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Reference Information
7. Reference Information
This chapter contains the tools list, list of abbreviations used in this manual, and a guide to the
location space required when installing the printer. A definition of tests pages is also included.
7.1 Tool for Troubleshooting
The following tools are recommended safe and easy troubleshooting as described in this service manual.
•
DVM(Digital Volt Meter)
• Cleaning Equipments
Standard : Indicates more than 3 digits.
Standard : An IPA(Isopropyl Alcohol)dry wipe tissue or
a gentle neutral detergent and lint-free cloth.
• Vacuum Cleaner
• Driver
Standard : "-" type, "+" type (M3 long, M3 short, M2
long, M2 short).
• Spring Hook
Standard : For general use
• Tweezers
Standard : For general home use, small type.
• Software (Driver) installation CD ROM
• Cotton Swab
Standard : For general home use, for medical service.
7-1
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Reference Information
7.2 Acronyms and Abbreviations
The table in the below explains abbreviations used in this service manual.
The contents of this service manual are declared with abbreviations in many parts. Please refer to the
table.
ADC
AP
Analog-to-Digital-Conversion
Access Point
EPP
F/W
FCF/FCT
FISO
FPOT
GDI
Enhanced Parallel Port
Firmware
AC
Alternating Current
First Cassette Feeder/First Cassette Tray
Front-In, Side-Out
ASIC Circuit Application Specific Integrated
ASSY
BIOS
Assembly
First Print out Time
Windows Graphic Device Interface
Graphic Interchange Format
Host Based Printing
Ground
Basic Input Output System
BLDC Motor Brushless DC Motor
GIF
CMOS
CMYK
CN
Complementary Metal Oxide Semiconductor
HBP
GND
HDD
HTML
HV
Cyan, Magenta, Yellow, Black
Connector
Hard Disk Drive
CON
CPU
Connector
Hyper Text Transfer Protocol
High Voltage
Central Processing Unit
CTD Sensor Color Toner Density Sensor
HVPS
I/F
High Voltage Power Supply
Interface
dB
Decibel
dBA
dBm
DC
A-Weighted decibel
Decibel milliwatt
I/O
Input and Output
lb
Pound(s)
Direct Current
IC
Integrated Circuit
DCU
DIMM
Diagnostic Control Unit
Dual In-line Memory Module
ICC
International Color Consortium
IDE
Intelligent Drive Electronics or
Integrated Drive Electronics
DPI
Dot Per Inch
IEEE
Institute of Electrical and
Engineers. Inc
DRAM
DVM
Dynamic Random Access Memory
Digital Voltmeter
Electronics
IOT
Image Output Terminal
(Color printer, Copier)
ECP
ECU
Enhanced Capability Port
Engine Control Unit
IPA
IPC
Isopropy Alcohol
Inter Process CommunicationEPP
Enhanced parallel Port
EEPROM Electronically Erasable
Programmable Read Only Memory
Electro Magnetic Interference
IPM
Images Per Minute
EMI
EP
ITB
Image Transfer Belt
Random Access Memory
Read Only Memory
Electro photographic
local area network
Laser Beam Printer
RAM
LAN
LBP
ROM
SCF/SCT
Second Cassette Feeder/Second
Cassette Tray
7-2
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Reference Information
LCD
LED
LSU
MB
Liquid Crystal Display
Light Emitting Diode
Laser Scanning Unit
Megabyte
SMPS
SPGP
SPL
Switching Mode Power Supply
Printer Graphic Processor
Printer Language
Spool
SURF
SW
Simultaneous Peripheral Operation Online
Surface Rapid Fusing
Switch
MHz
MPBF
Megahertz
Mean Prints Between Failure
MPF/MPT Multi Purpose Feeder/Multi Purpose Tray
sync
T1
Synchronous or Synchronization
ITB
NIC
Network Interface Card
Network Printer Card
NPC
T2
Transfer Roller
NVRAM Nonvolatile Random Access Memory
TRC
PnP
URL
USB
VCCI
Toner Reproduction Curve
Universal Plug and Play
Uniform Resource Locator
Universal Serial Bus
OPC
PBA
TRC
PCL
Organic Photo Conductor
Printed Board Assembly
Toner Reproduction Curve
Printer Command Language ,
Printer Control Language
Voluntary Control Council for
Interference Information
Technology Equipment
PCI
Peripheral Component Interconnect by
WECA
Wireless Ethernet Compatibility
Intel 1992/6/22, is a local bus standard developed by
Intel and introduced in April, 1993 : A60, B60 Pins
Alliance
PDF
PDL
Ping
PPD
PPM
PS
Portable Document Format
Page Description Language
Packet internet or Inter-Network Groper
Postscript Printer Discription
Page Per Minute
Wi-Fi
Wireless Fidelity
Post Script
PTL
PWM
Q'ty
Pre-Transfer Lamp
Pulse Width Moduration
Quantity
7-3
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Reference Information
7.3 Select a location for the printer
• Leave enough room to open the printer trays, covers, and allow for proper ventilation. (see diagram
below)
• Provide the proper environment :
- A firm, level surface
- Away from the direct airflow of air conditioners, heaters, or ventilators
- Free of extreme fluctuations of temperature, sunlight, or humidity
- Clean, dry, and free of dust
7-4
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Reference Information
7.4 Sample Tests Patterns
The sample patterns shown below are the standard test patterns used in the factory.
The life of the toner cartridge, developer cartridge and printing speed are measured with the pattern shown
below (5%). The A4 ISO 19752 standard pattern samples are reproduced reduced to 70% of the actual A4
size.
A4 ISO 19752 Standard Patterns
7-5
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Muratec America, Inc.
3301 East Plano Parkway, Ste. 100
Plano, Texas 75074
(469) 429-3300 (Tel)
(469) 429-3465 (Fax)
www.muratec.com
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