GENERAL PRECAUTIONS REGARDING THE INSTALLATION
AND SERVICE FOR e-STUDIO3511/4511,
e-STUDIO281c/351c/451c, e-STUDIO350/352/450/452,
e-STUDIO200L/202L/230/230L/232/280/280S/282/282SAND
GD-1150/1151/1200/1201/1160/1260
The installation and service should be done by a qualified service
technician.
1) Transportation/Installation
-
Be sure to transport the equipment with the number of people given in the following table holding
the positions as indicated below. Pay full attention when handling it because it is quite heavy.
Model
Weight
Number of people
e-STUDIO3511/4511
Approx. 112 kg (246 lb.)
Approx. 113 kg (249 lb.)
Approx. 83 kg (182.98 lb.)
Approx. 75 kg (165.34 lb.)
4
4
2
2
e-STUDIO281c/351c/451c
e-STUDIO350/352/450/452
e-STUDIO200L/202L/230/
230L/232/280/280S/282/282S
e-STUDIO3511/4511/281c/351c/451c
e-STUDIO350/352/450/452/
200L/202L/230/230L/232/280/280S/282/282S
-
-
-
-
Be sure not to hold the movable parts or units (e.g. the control panel, ADU or RADF) when trans-
porting the equipment.
Be sure to use a dedicated outlet with AC 110/13.2A, 115V or 127V/12A, 220V-240V or 240V/8A
for its power source.
The equipment must be grounded for safety.
Never ground it to a gas pipe or a water pipe.
Select a suitable place for installation.
Avoid excessive heat, high humidity, dust, vibration and direct sunlight.
-
-
Also provide proper ventilation as the equipment emits a slight amount of ozone.
To insure adequate working space for the copying operation, keep a minimum clearance of 80
cm (32”) on the left, 80 cm (32”) on the right and 10 cm (4”) in the rear.
-
The socket-outlet shall be installed near the equipment and shall be easily accessible.
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2) Service of Machines
-
Basically, be sure to turn the main switch OFF and unplug the power cord during service.
-
Be sure not to touch high-temperature sections such as the exposure lamp, the fuser unit, the
damp heater and their periphery.
-
Be sure not to touch high-voltage sections such as the chargers, transfer belt, 2nd transfer roller,
developer, IH control circuit, high-voltage transformer, exposure lamp control inverter, inverter for
the LCD backlight and power supply unit. Especially, the board of these components should not
be touched since the electric charge may remain in the capacitors, etc. on them even after the
power is turned OFF.
-
-
Be sure not to touch rotating/operating sections such as gears, belts, pulleys, fan, etc.
Be careful when removing the covers since there might be the parts with very sharp edges
underneath.
-
When servicing the machines with the main switch turned ON, be sure not to touch live sections
and rotating/operating sections. Avoid exposure to laser radiation.
-
-
Use suitable measuring instruments and tools.
Avoid exposure to laser radiation during servicing.
Avoid direct exposure to the beam.
Do not insert tools, parts, etc. that are reflective into the path of the laser beam.
Remove all watches, rings, bracelets, etc. that are reflective.
-
Unplug the power cable and clean the area around the prongs of the plug once a year or more.
A fire may occur when dust lies on this area.
3) Main Service Parts for Safety
-
The breaker, door switch, fuse, thermostat, thermofuse, thermistor, etc. are particularly important
for safety. Be sure to handle/install them properly. If these parts are shorted circuit and/or made
their functions out, they may burn down, for instance, and may result in fatal accidents. Do not
allow a short circuit to occur. Do not use the parts not recommended by Toshiba TEC Corpora-
tion.
4) Cautionary Labels
During servicing, be sure to check the rating plate and the cautionary labels such as “Unplug the
-
power cord during service”, “Hot area”, “Laser warning label” etc. to see if there is any dirt on
their surface and whether they are properly stuck to the equipment.
5) Disposition of Consumable Parts, Packing Materials, Used Batteries and RAM-ICs
-
Regarding the recovery and disposal of the equipment, supplies, consumable parts, packing
materials, used batteries and RAM-ICs including lithium batteries, follow the relevant local regu-
lations or rules.
6) When parts are disassembled, reassembly is basically the reverse of disassembly unless
otherwise noted in this manual or other related documents. Be careful not to reassemble
small parts such as screws, washers, pins, E-rings, star washers in the wrong places.
7) Basically, the machine should not be operated with any parts removed or disassembled.
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8) Precautions against Static Electricity
-
The PC board must be stored in an anti-electrostatic bag and handled carefully using a wrist-
band, because the ICs on it may become damaged due to static electricity.
Caution:
Before using the wristband, pull out the power cord plug of the equipment and make sure
that there are no uninsulated charged objects in the vicinity.
Caution:
Dispose of used batteries and RAM-ICs including lithium batteries according to this
manual.
Attention: Se débarrasser de batteries et RAM-ICs usés y compris les batteries en lithium selon
ce manuel.
Vorsicht: Entsorgung des gebrauchten Batterien und RAM-ICs (inklusive der Lithium-Batterie)
nach diessem Handbuch.
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1. SPECIFICATIONS AND OUTLINE OF SYSTEM ......................................................... 1-1
1.1 FAX Options ........................................................................................................................1-1
1.2 Specifications.......................................................................................................................1-2
1.3 Features ..............................................................................................................................1-5
1.4 Accessories and Parts.........................................................................................................1-7
1.5 Options ................................................................................................................................1-8
1.6 System List ........................................................................................................................1-10
1.7 Units and Components ......................................................................................................1-15
1.8 Layout of PC Boards..........................................................................................................1-16
2. LSU-RELATED FUNCTIONS ....................................................................................... 2-1
2.1 Recording Mode ..................................................................................................................2-1
2.2 Recording Paper Selection Algorithm and Printing Algorithm .............................................2-2
2.2.1 Recording paper selection algorithm........................................................................2-2
2.2.2 Printing algorithm .....................................................................................................2-2
2.2.3 Setting for the split recording....................................................................................2-6
2.3 Recording Paper and Function............................................................................................2-7
2.3.1 Table of the recording paper selection modes .........................................................2-8
2.3.2 Others.......................................................................................................................2-8
2.4 Energy Saver Mode.............................................................................................................2-9
2.5 Memory Reception.............................................................................................................2-10
3. DIALING/COMMUNICATION CONTROL..................................................................... 3-1
3.1 Circuit Connection and Procedure to Change Mode ...........................................................3-1
3.1.1 Dial call-up transmission to a telephone circuit ........................................................3-1
3.1.2 Selection of the communication mode .....................................................................3-2
3.1.3 Procedure to select the transmission mode .............................................................3-2
3.2 Signaling System Diagram and Signal Forms .....................................................................3-3
3.2.1 Circuit control signals ...............................................................................................3-3
3.2.2 Communication with the binary signals ....................................................................3-4
3.2.3 V.8/V.34 communication sequence........................................................................3-13
3.3 FAX Automatic Switching ..................................................................................................3-26
3.3.1 General functions ...................................................................................................3-26
3.3.2 TEL mode...............................................................................................................3-26
3.3.3 FAX mode ..............................................................................................................3-26
4. ELECTRICAL CIRCUITS.............................................................................................. 4-1
4.1 Configuration .......................................................................................................................4-1
4.2 Description of Circuits..........................................................................................................4-5
4.2.1 Configuration ............................................................................................................4-5
4.2.2 Line path switching control circuit.............................................................................4-7
4.2.3 Dial pulse generation circuit .....................................................................................4-9
4.2.4 Line current detection circuit ..................................................................................4-11
4.2.5 CI detection circuit..................................................................................................4-13
4.2.6 Line monitor circuit .................................................................................................4-15
4.3 PC Boards .........................................................................................................................4-18
5. INSTALLATION ............................................................................................................ 5-1
5.1 Explanation to the Users......................................................................................................5-1
© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
GD-1150/1151/1200/1201/1160/1260
CONTENTS
1
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GD-1150/1151/1200/1201/1160/1260
CONTENTS
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1. SPECIFICATIONS AND OUTLINE OF SYSTEM
1.1 FAX Options
1
e-STUDIO3511/4511/350/450/200L/202L/203L/230/232/233/280/282/283 can be used as a FAX by
installing the FAX unit (GD-1150/1151).
e-STUDIO281c/351c/451c/352/353/452/453 can be used as a FAX by installing the FAX unit (GD-
1200/1201).
Be sure to use the FAX unit and the 2nd line for the FAX board only in the following combinations.
FAX unit
GD-1150
GD-1151
GD-1200
GD-1201
2nd line for FAX board
GD-1160
GD-1260
GD-1160
GD-1260
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SPECIFICATIONS AND OUTLINE OF SYSTEM
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1.2 Specifications
1) Main system
-
Type
Desktop type transceiver
-
Operation
Transmission Manual/Automatic
Reception
Manual/Automatic
2) Scanner
<Scanning density> [ ]: at rotation transmission
-
-
-
Horizontal direction
16 lines/mm, 8 lines/mm
[15.4 lines/mm, 7.7 lines/mm, 3.85 lines/mm]
Vertical direction
15.4 lines/mm, 7.7 lines/mm, 3.85 lines/mm
[16 lines/mm, 8 lines/mm]
Combination
U-Fine:
Semi-U-Fine:8 x 15.4 lines/mm [15.4 x 8 lines/mm]
Note:
16 x 15.4 lines/mm [15.4 x 16 lines/mm]
Operation from the panel is automatically converted at the receiving capability of “U-Fine” com-
bination.
Fine:
Normal:
8 x 7.7 lines/mm [7.7 x 8 lines/mm]
8 x 3.85 lines/mm [3.85 x 8 lines/mm]
-
Effective scanning area
A
2
Scanning
direction
3
B
3
2.5
(
)
Mechanical system error 2 mm included
(mm)
Original size
A
B
A4
B4
A3
FOLIO
LT
LG
210
364
420
330
216
355.6
431.8
204.5
358.5
414.5
324.5
210.5
350.1
426.3
LD
GD-1150/1151/1200/1201/1160/1260
SPECIFICATIONS AND OUTLINE OF SYSTEM
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3) Transmission system
Circuits to be used: Subscriber line/FAX communication network (G3)
-
-
-
-
-
-
-
-
Calling automatic transmission (including the sequential multi-address transmission)
Calling automatic reception (polling reception)
Called automatic transmission (polling transmission)
Called automatic reception
Calling manual transmission
Calling manual reception
1
Called manual transmission
Called manual reception
Communication mode
High-speed mode (Toshiba original procedure mode)
G3 mode
ECM (Error Correction Mode)
Circuit carrier link equalization function
Embedded
Output level
–16 dBm to –8 dBm (The setting can be changed by “1 dB”.)
Input level
–43 dBm to 0 dBm
(Level –55 dBm or lower cannot be detected)
Specifications of the communication mode
High-speed mode
(Toshiba original procedure mode)
G3 mode
ECM
Horizontal scanning den-
sity
8 dots/mm
300 dpi (Reception only)
16 dots/mm
Same as on the left
Same as on the left
Vertical scanning density
3.85 lines/mm
7.7 lines/mm
Same as on the left
Same as on the left
300 dpi (Reception only)
15.4 lines/mm
Encoding system
MH/MR/MMR/JBIG
2.5 ms
MH/MR
MH/MR/MMR/JBIG
Same as on the left
Minimum transmission
time for 1 line
Same as on the left
Transmission speed
(image signal) and modu-
lation method
14.4 k/12 k/9600
7200/4800/2400 bps
Conformance to V.17/V.29/V.27 ter
Same as on the left
33.6 k/31.2 k/28.8 k/
26.4 k/24 k/21.6 k/
19.2 k/16.8 k/14.4 k/
12 k/9600/7200/
4800/2400 bps
Control signal
300 bps
V.21
Same as on the left
T.30 conformance
2400/1200/600/
300 bps
V.34/V.8/V.21
Procedure to control the
transmission
Toshiba original procedure
Same as on the left
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4) Recording paper
-
Recording method
Electrophotographic recording method by LSU (Laser Scanning Unit)
-
Horizontal printing density
24 lines/mm (96 lines/mm with the smoothing processing)
[23.1 lines/mm (92.4 lines/mm with the smoothing processing)]
-
-
Vertical printing density
23.1 lines/mm (24 lines/mm with the smoothing processing)
Recording paper size and the effective printing area
Unit: mm (inch)
Paper size
A5-R
B5-R
B5
Dimension (width x length)
Printing area
143 x 204.5
177 x 251.5
252 x 176.5
205 x 291.5
292 x 204.5
252 x 358.5
292 x 414.5
205 x 324.5
134.7 x 210.5
211 x 273.9
274.4 x 210.5
211 x 350.1
274.4 x 426.3
252 x 350.5
148 x 210
182 x 257
257 x 182
A4-R
A4
210 x 297
297 x 210
B4
257 x 364
A3
297 x 420
FOLIO
ST-R
LT-R
LT
210 x 330
139.7 x 216 (5.5 x 8.5)
216 x 279.4 (8.5 x 11)
279.4 x 216 (11 x 8.5)
216 x 355.6 (8.5 x 14)
279.4 x 431.8 (11 x 17)
257 x 356 (10.125 x 14)
LG
LD
COMP
GD-1150/1151/1200/1201/1160/1260
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1.3 Features
•
A3/LD scanning
1
Scans data across A3/LD width and transmits in A3/LD actual size.
•
High-speed scanning
Inputs an A4/LT-size transmitted document in about 0.7 seconds (A4/LT document transmitted
widthwise).
•
•
High-speed transmission
33.6 Kbps high speed modem
Toshiba original high-speed communication modes EX and HS
JBIG encoding system
Dual Access
-
FAX transmission
There are two types of FAX transmission: Page-by-page direct transmission and memory trans-
mission that all pages are stored in the memory before being transmitted.
-
FAX reception
Basically, all pages are input in the memory before being output. This reduces the time that the
FAX communication occupies the machine, making Dual Access between the copying/faxing and
printing operation possible.
Namely, the followings are possible:
- Memory input during the memory transmission
- Memory input during the memory reception
- Copying during the memory transmission
- Reception during the copying
- Reception during the memory output
- Reception during the list output
•
Laser printing on plain paper
Printing is made on the standard size paper (A3/LD, B4/COMP, A4/LT/LG, A4-R/LT-R, B5, B5-R,
FOLIO, and A5-R/ST-R) with the laser system.
•
•
Gradation
256 tones, error diffusion method
Memory communication function
Image data can be stored in the HDD. In the delayed transmission, image data read from an original
are stored in the memory, then sent when the specified time comes.
Other memory functions: multi transmission, memory reception, ECM communication, etc.
•
Smoothing
The smoothing process is applied to the received images so that they are changed from 8 × 3.85,
8 × 7.7, 8 × 15.4 or 16 × 15.4 to 24 × 92.4 (equivalent to 600 × 2400dpi), then printed out.
•
•
Editing function
Duplex transmission and duplex printing are possible.
FAX data file storage capacity
360 MB file storage capacity is added (for transmission: 240 MB, for reception: 120 MB)
Note:
Note: For hard drivers, GB means 1 billion bytes.
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•
•
Phone Book (1,000 addresses)
Up to 1,000 addresses can be registered in the Phone Book using the large LCD control panel.
Multi-address transmission function
Data are sent to multiple addresses (400 destinations) in sequence in a single operation.
There are three ways to choose/enter the address
-
-
-
Choose from the Phone Book (up to 400 destinations)
Direct dialing (up to 400 destinations)
Mix operation (Phone Book, Direct dialing, Group destinations: up to 400 destinations)
•
•
Memory reception function
When the recording paper has run out or a paper jam has occurred, the memory receives and stores
the data.
Auto-dialing function
-
Delayed dialing
Documents are transmitted automatically to the preset number at the preset time.
Redialing
-
When the receiving side is busy during the automatic dialing, the machine keeps dialing at a
fixed interval for a specified number of times.
•
•
Receiving tone/completion tone
Sound notifies that the reception of a FAX document or printing of a received document has been
completed.
List output
The following data stored in the RAM can be printed out
-
-
-
-
-
-
Phone book information
Function list
Transmission journal
Reception journal
Memory transmission report
Power failure list
etc.
•
•
Power saver mode
During hours in which the reception amount is small, the weekly timer works to shut off the main
power and the heater power to save power consumption.
Drawer selection
It is possible to choose a drawer on to whose paper the received images are to be printed.
[Options]
2nd line
One extra line can be added by installing the 2nd line unit (option).
•
GD-1150/1151/1200/1201/1160/1260
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1.4 Accessories and Parts
The following accessories and parts come with the FAX unit:
Accessory
1
Qty
1 pc.
1 pc.
1 set
Operator’s manual (for facsimile function)
Modular cord (2 m)
Unpacking instruction
Parts
Qty
Fax unit
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
4 pc.
1 pc.
SG3 label
FCC Part 68 label (U.S.A.): NA only
IC label (Canada): NA only
DTS label (EU): EU only
Teleprompt label (New Zealand): AU only
Notice to users label (New Zealand): AU only
Screw
Ground plate
*
Apply the each label to the specified positions following the Unpacking/Setup Instruction.
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1.5 Options
Extends the FAX functions when the FAX unit is installed.
e-STUDIO3511/4511/350/450
Option
Function
Model
Reversing Automatic
Feeds originals
MR-3015
Document Feeder (RADF)
Finisher
Sorts out documents to be output for the
FAX/copying operation
MJ-1022
(e-STUDIO3511/350)
MJ-1023/1024
2nd line for FAX board
Job Separator
Adds one extra communication line
GD-1160NA/TW/EU/C
MJ-5004
Sorts out documents to be output for the
FAX/copying operation
e-STUDIO230/280
Option
Function
Model
Reversing Automatic
Feeds originals
MR-3016
Document Feeder (RADF)
Finisher
Sorts out documents to be output for the
FAX/copying operation
MJ-1022
MJ-1025
2nd line for FAX board
Job Separator
Adds one extra communication line
GD-1160NA/TW/EU/C
MJ-5004
Sorts out documents to be output for the
FAX/copying operation
e-STUDIO281c/351c/451c
Option
Function
Model
Reversing Automatic
Feeds originals
MR-3018
Document Feeder (RADF)
Finisher
Sorts out documents to be output for the
FAX/copying operation
MJ-1022
(e-STUDIO281c/351c)
MJ-1023/1024
2nd line for FAX board
Adds one extra communication line
GD-1160NA/TW/EU-N/C
GD-1260NA/TW/EU-N/C
GD-1150/1151/1200/1201/1160/1260
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e-STUDIO352/353/452/453
Option
Function
Model
1
Reversing Automatic
Feeds originals
MR-3018
Document Feeder (RADF)
Finisher
Sorts out documents to be output for the
FAX/copying operation
MJ-1022/1101
(e-STUDIO352)
MJ-1023/1024
2nd line for FAX board
Job Separator
Adds one extra communication line
GD-1160NA/TW/EU/C
GD-1260NA/TW/EU/C
Sorts out documents to be output for the
FAX/copying operation
MJ-5004
e-STUDIO202L/203L/232/233/282/283 series
Option
Function
Model
Reversing Automatic
Feeds originals
MR-3020
Document Feeder (RADF)
Finisher
Sorts out documents to be output for the
FAX/copying operation
MJ-1022
MJ-1025
2nd line for FAX board
Job Separator
Adds one extra communication line
GD-1160NA/TW/EU/C
GD-1260NA/TW/EU/C
Sorts out documents to be output for the
FAX/copying operation
MJ-5004
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1.6 System List
e-STUDIO3511/4511/350/450
Finisher
(
)
Hanging type
MJ-1022
e-STUDIO3511/350 only
Reversing Automatic
Document Feeder
MR-3015
Finisher
Console type
MJ-1023
(
)
Finisher
Console saddle stitch type
MJ-1024
(
)
Bridge Kit
KN-3511
e-STUDIO3511/4511
only
FAX Board
GD-1150NA/TW/EU
/AU/AS/C
Job Separator
MJ-5004
e-STUDIO350/450
only
2nd Line for FAX Board
GD-1160NA/TW/EU/C
Bridge Kit
KN-3520
e-STUDIO350/450
only
Drawer Module
MY-1021
Desk
MH-1700
Paper Feed
Pedestal (PFP)
Large Capacity
Feeder (LCF)
KD-1012 A4/LT
KD-1011
Fig. 1-1
GD-1150/1151/1200/1201/1160/1260
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e-STUDIO230/280
Finisher
Hanging type
MJ-1022
1
Reversing Automatic
Document Feeder
(
)
MR-3016
Finisher
Console saddle stitch type
MJ-1025
(
)
Bridge Kit
KN-3520
FAX Board
GD-1150NA/TW/EU
/AU/AS/C
Job Separator
MJ-5004
2nd Line for FAX Board
GD-1160NA/TW/EU/C
Drawer Module
MY-1021
Desk
MH-1700
Paper Feed
Pedestal (PFP)
Large Capacity
Feeder (LCF)
KD-1012 A4/LT
KD-1011
Fig. 1-2
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e-STUDIO281c/351c/451c
Finisher
Hanging type
MJ-1022
(
)
e-STUDIO281c/351c only
Reversing Automatic
Document Feeder
MR-3018
Finisher
Console type
MJ-1023
(
)
Finisher
Console saddle stitch type
MJ-1024
(
)
Bridge Kit
KN-3511
FAX Board
GD-1200
FAX Board
GD-1201
2nd Line for
FAX Board
GD-1160
2nd Line for
FAX Board
GD-1260
Drawer Module
MY-1021
Desk
MH-1700
Paper Feed
Pedestal (PFP)
Large Capacity
Feeder (LCF)
KD-1012 A4/LT
KD-1011
Fig. 1-3
GD-1150/1151/1200/1201/1160/1260
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e-STUDIO352/353/452/453
Finisher
Hanging type
MJ-1022
(
)
e-STUDIO352/353 only
1
Reversing Automatic
Document Feeder
MR-3018
Finisher
Console type
MJ-1023
(
)
Finisher
Console saddle stitch type
MJ-1024
(
)
Bridge Kit
KN-3520
Job Separator
MJ-5004
Finisher
Console type
MJ-1101
(
)
FAX Board
GD-1200NA/TW/EU
/AU/AS/C/KR
2nd Line for FAX Board
GD-1160NA/TW/EU/C
FAX Board
GD-1201NA/TW/EU
/AU/AS/C/KR
2nd Line for FAX Board
GD-1260NA/TW/EU/C
Drawer Module
MY-1021
Desk
MH-1700
Paper Feed
Pedestal (PFP)
Large Capacity
Feeder (LCF)
KD-1012 A4/LT
KD-1011
Fig. 1-4
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e-STUDIO202L/203L/232/233/282/283 series
Finisher
Hanging type
MJ-1022
Reversing Automatic
Document Feeder
(
)
MR-3020
Automatic
Duplexing Unit
MD-0102
Finisher
Console saddle stitch type
MJ-1025
Bridge Kit
KN-3520
(
)
Job Separator
MJ-5004
FAX Board
GD-1150NA/TW/EU
/AU/AS/C/KR
2nd Line for FAX Board
GD-1160NA/TW/EU/C
FAX Board
GD-1151NA/TW/EU
/AU/AS/C/KR
2nd Line for FAX Board
GD-1260NA/TW/EU/C
Drawer Module
MY-1021
Desk
MH-1700
Paper Feed
Pedestal (PFP)
Large Capacity
Feeder (LCF)
KD-1012 A4/LT
KD-1011
Fig. 1-5
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1.7 Units and Components
1
Reversing Automatic
Document Feeder (RADF)
Control panel
1st Drawer
2nd Drawer
Fig. 1-6
Fig. 1-7
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1.8 Layout of PC Boards
e-STUDIO3511/4511/350/450/200L/202L/203L/230/232/233/280/282/283
MDM
FAX
NCU
Fig. 1-8 Rear side of the equipment
Symbol
FAX
Name
FAX control board
Function
Remarks
Control the FAX function
MDM
Telephone circuit control board
Controls dialing for the analog cir-
cuit (for 2nd line)
NCU
Telephone circuit control board
Controls dialing for the analog cir-
cuit (Lower board: standard 1st
line, Upper board: for 2nd line)
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e-STUDIO281c/351c/451c, e-STUDIO352/353/452/453
MDM
1
FAX
FAX PWR
NCU
Fig. 1-9 Rear side of the equipment
Symbol
FAX
Name
Function
Remarks
FAX control board
Controls the FAX function
MDM
Telephone circuit control board
Controls dialing for the analog cir-
cuit (for 2nd line)
NCU
Telephone circuit control board
FAX power board
Controls dialing for the analog cir-
cuit (Lower board: standard 1st
line, Upper board: for 2nd line)
FAX PWR
Supplies the power (-12V, +24V)
of FAX
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2. LSU-RELATED FUNCTIONS
2.1 Recording Mode
This machine offers various printing modes such as the selection of the applicable recording paper and
the recording method, etc. to meet users’ needs. To take full advantage of these features, it is important
to understand the concepts of the recording paper selection algorithm and printing algorithm as
described in 2. 2.
2
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2.2 Recording Paper Selection Algorithm and Printing Algorithm
Before printing the received image, the preset settings are evaluated in the order of the following 1) and
2), and the printing is performed based on the result.
1) Recording paper selection algorithm
-
Basically, the received image is printed on a sheet of paper of the same size as the original.
However, if this size is not available, this algorithm determines on which size of recording paper
the output should be made. (Actual Size Mode/Free Mode)
2) Printing algorithm
-
Determines how the received image is to be printed. (Discard printing/Vertical reduction printing/
Regular size reduction printing/Split printing)
2.2.1
Recording paper selection algorithm
It is possible to distinguish the size of each received image (A3(LD)/B4(LG)/A4(LT)/B5/A5). Basically,
recording paper of the same size as the original is used for printing. If recording paper of the size is not
available, this algorithm selects paper of another size according to the setting in the Setting Mode.
1) Actual Size Mode (13-517: 0)
-
Printing is performed when regular size reduction is not applied to the received image. In this
mode, an A4/LT received image is printed on a B4 recording paper.
2) Free Mode (13-517: 1)
-
Printing is performed on any available recording paper.
2.2.2
Printing algorithm
Recording paper has its effective printing area. Even if the size of the original paper and the recording
paper are the same, the length of the original is normally longer.
This means that the received image would be divided onto two sheets. To prevent this, the printing
algorithm works as described in the following pages.
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Discard / Vertical reduction / Regular size reduction / Split printing flow chart
START
Recording
paper of the same
size as the original's
available?
No
Smaller size paper
available?
No
Larger size paper
available?
Yes
1
Yes
No
Yes
2
Recording
paper run out
1
Regular size
reduction function
ON?
Yes
Regular size
reduction printing
Received image fitsin
the effective printing area of the
recording paper?
(
Normal actualsize
)
Yes
No
printing
Image not
output
No
Use the short
length paper?
See the note below.
Yes
(
)
No
Regular
size reduction
function ON?
No
Image not
output
Discard
printing function
ON?
No
Yes
Regular size
reduction printing
Yes
Blank
space *within the
discard parameter?
Yes
Discard printing
(
)
actual size
No
Regular size
reduction function
ON?
No
No
Image not
output
Vertical reduction
function ON?
Yes
Yes
Reduction ratio "R"
calculated from the
actual image data.
Regular size
reduction
printing
"R" within the max.
reduction ratio?
No
Yes
Vertical reduction
printing
Note: Short length paper are the recording paper of A4/B5/A5/LT/
ST against A3/B4/A4/LD/LT size originals respectively.
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1) Discard printing
-
Since the trailing edge area of the original is normally blank, this blank area is cut off to allow the
image fit in one sheet in this mode. Image reduction is not performed.
-
Maximum discarding amount:
0 mm: Discard not performed
10 mm: Corresponding to the inside the TTI
18 mm: Corresponding to the outside the TTI 1
22 mm: Corresponding to the outside the TTI 2
34 mm: A4 → LT conversion
(TTI: Transmission Terminal Identifier)
When the discard function is ON (13–378:1):
Actual size recording is performed with no vertical reduction nor division. The original image is
recorded as it is. Namely, the data exceeding the effective printing area are discarded.
A
A
B
A : Effective printing length
B : Recording data length outside the
effective printing area
Area B is discarded.
(
)
A + B = Recording data length
Discard parameter (13-375: 0 to 4)
The following parameters are available:
Discard function
Length of B (Discard parameter)
Set value
OFF
ON
0 mm
10 mm
18 mm
22 mm
34 mm
0
1
2
3
4
Reference: These parameters should be set by the service technician (in the FAX Function Mode).
2) Vertical reduction printing (13–377: 0)
-
The recording data length is reduced so that the image fits in the recording paper.
The data can be reduced up to 90/75%, and the machine automatically selects the appropriate
ratio.
3) Regular size reduction printing (13–517: 1)
-
When the discard and vertical reduction printing cannot be applied to the received image, and
any of the combinations A3 → B4, A3 → A4, B4 → A4, B4 → B5, B4 → A5, A4 → B5, A4 → A5,
COMP → LT, COMP → ST, LD → COMP, LD → LG/LT, LD → ST, LT → ST, FOLIO → B5, FOLIO
→ A5 is satisfied, the regular size reduction printing is performed.
In case that the recording data length is within the effective printing length A, but the recording
paper of the same size as the original’s or larger size is not available;
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A × reduction
ratio
A
B × reduction
ratio
2
B
A3
B4
A4
LD
LT
B4, A3
A4, B4
A4
B5, B4
A5, A4
B5,
ST,
ST,
A5
A5 , COMP
COMP, LD
ST, FOLIO
LT, COMP
LG/LT, LD
B5, FOLIO
In case that the recording data length exceeds the effective printing length A, the vertical reduc-
tion printing is not applicable and larger size recording paper is not available;
(In the following example, A4/LT original was sent but the recording length exceeds A4 size and
the data do not fit in A4/LT even if the vertical reduction is performed. The reduction B4 → A4 or
A3 → A4 is applied in this case.)
A
A × reduction
ratio
C
C × reduction
ratio
B
D
B × reduction
ratio
D × reduction
ratio
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4) Split printing
When the recording data do not fit in a recording paper even if vertical reduction is performed for the
recording data length (the recording data length is exceeding the effective printing length of the larg-
est recording paper in the drawer installed in the machine), the recording data are divided onto two
sheets while vertical reduction is performed.
A
B
A× vertical reduction ratio
B × vertical reduction ratio
2.2.3
Setting for the split recording
1) Split recording onto A4/B5/A5/ST
Set as to whether split recording onto the short length paper (A4/B5/A5/ST) is to be performed or
not.
When this function is disabled, split recording for A3/B4/A4 data onto A3/B4/A4/LG/LT recording
paper is not performed.
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2.3 Recording Paper and Function
The size of the recording paper on which the received image data are printed is determined according
to the presence/absence of the recording paper and the above-mentioned function settings. Relation
between the recording paper size and the function settings is described in this section.
2
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2.3.1
Table of the recording paper selection modes
<Selection of recording paper: in case the recording data length do not exceed the effective recording
length of the recording paper>
Recording data size
A4
A4
B5
B5
A5
A5
LT
LT
S T
S T
A4-R
B4
B4
A3
A3
A3
B4
LT-R
LG
LG
COMP
COMP
LD
LD
FOLIO
FOLIO
B4
A4-R
LT-R
LD
1
2
3
4
5
6
7
8
A4
LT
A4-R
B5-R
A4-R
LT-R
COMP
COMP
LT-R
LT
*2
*1
*1
*2
A4
FOLIO
A4-R
*1
A4-R
*1
A3
B4
A4
LG
LD
LD
LT-R
LG
*1
A3
*2
*1
*2
A4
A4
LT
B4
FOLIO
FOLIO
COMP
LG
LT-R
LT-R
*1
LG
A4-R
*1
*2
*1
*1
*1
*2
*1
*1
*1
*1
B5
LT
LT
A4
A3
FOLIO
FOLIO
B4
A4-R
*1
LD
COMP
LG
COMP
*2
*1
*1
*1
*2
*1
*1
*1
*2
*1
*2
B5-R
*1
B5-R
*1
B5-R
*1
A3
*2
B5-R
*2
ST-R
*1
ST-R
*1
LD
B5-R
*1
*2
B5
B5
B5
B5
FOLIO
B4
A3
*1
*1
*1
*1
*2
*2
*1
A5-R
*1
A5-R
*1
A5-R
*1
*1: Can be used when the regular size reduction function is ON (when it is OFF, the data are stored
in the memory.)
*2: When the data are output in the primary scanning direction, it is printed in the center of the
recording paper.
2.3.2
Others
1) For the users with the TTI outside setting, it is recommended to set the discard parameter to 18 mm.
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2.4 Energy Saver Mode
The fuser unit, main power and power supply for the control panel can be shut off during a specified
period of time such as night time that the machine is in the ready mode, using a weekly timer function of
the equipment. When a FAX is received in the Energy Saver Mode, the fuser unit, main power and
power supply for the control panel are automatically turned ON. Printing is then started when the
machine reaches the specified temperature. The Energy Saver Mode is useful for hours in which the
amount of communication is small and immediate printing is not necessary.
The setting of the Energy Saver Mode and time (start time, end time) are made on the USER FUNC-
TIONS screen. (Default setting is made by the weekly-timer function of the equipment.)
2
How to enter the
Energy Saver Mode
Timer setting
How to cancel the mode
mode
Auto Power
Save Mode
Automatically
Can be set in the
USER FUNCTIONS
Screen.
Returns to the default screen by
receiving FAX document, or by
pressing the [START] button
Returns to the FAX screen by press-
ing the [FAX] button
Sleep Mode
Automatically or by
pressing the
[ENERGY SAVER]
button for 2 seconds
Can be set in the
USER FUNCTIONS
Screen.
Returns to the default screen by
receiving FAX document, or by
pressing the [START] button
Returns to the FAX screen by press-
ing the [FAX] button
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2.5 Memory Reception
Basically, the receiving FAX data are once stored in the HDD, then the data are printed out after the
reception process is finished.
The memory reception is performed until the 120 M byte HDD becomes full.
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3. DIALING/COMMUNICATION CONTROL
3.1 Circuit Connection and Procedure to Change Mode
3.1.1
Dial call-up transmission to a telephone circuit
START
3
YES
Detecting a calling signal?
NO
YES
Detecting an off-hook signal?
NO
DC circuit closed
After detecting the dial tone,
or 3.3 seconds elapsed
Selection signal sent out
END
Standby state
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3.1.2
Selection of the communication mode
This machine has three types of communication mode. The mode to be used is determined according
to the combination of the types of the circuits and communication and available function of the other
side’s machine.
Communication mode
Toshiba original procedure
ECM
G3
Telephone circuit
{
{
{
3.1.3
Procedure to select the transmission mode
START
*1
Other side machine has the
Toshiba original
procedure mode?
YES
Communication using the
Toshiba original procedure
NO
YES
Other side machine has
ECM mode?
ECM communication
NO
YES
Other side machine has G3 mode?
G3 communication
*1 This step is only checked when the other side machine has CRP2 (+ CRP1) or when the trans-
:
mission is started by the CRP calling. (The first transmission to the other side with CRP1 only
is performed in the ECM mode.)
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3.2 Signaling System Diagram and Signal Forms
3.2.1
Circuit control signals
The following circuit control signals are used in the binary and tonal procedures.
• Circuit control signals
CED
CNG
Called station identification
Indicates that the sender is a FAX machine in the automatic called
mode. (*1)
Calling tone
Indicates that the sender is a FAX machine in the automatic calling
mode. (*1)
3
*1: This signal can be sent manually.
•
Signal form
Signal name
Signal form
Signal form
f: 2100 ±15 Hz
CED
f
t
t: 2.6 - 4.0 sec
CNG
f: 1100 ±38 Hz
t: 0.5 sec ±15%
(L: 3 sec)
f
t
f
t
L
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3.2.2
Communication with the binary signals
In the Toshiba original procedure/G3 modes, communication is performed with the binary procedure as
follows.
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(1) Binary procedure
•
Transmission and reception in the Toshiba original procedure/G3 modes
Transmtter
Receiver
3
Mode change possible*
Informing that there is
the next page
*
Mode change is possible only for the original set manually.
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•
Transmission and reception in the ECM mode
ECM (Error Correction Mode) conforms to T.30.
When an error has occurred to the received image data, the receiving station informs the
sending station of the occurrence of the error, and the sending station sends the image data
again.
Transmtter
Receiver
256 frames received
Error occurred
Only error frame retransmitted
Page 1 completed
Page 2 completed
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•
Cancellation during the transmission
If the [STOP] button is pressed during the direct transmission or memory input, the display to
confirm the cancellation appears. The communication is finished normally regardless of the
presence/absence of the next page or mode changes by pressing the [STOP] button.
If the [STOP] button is pressed anytime except during the transmission of the image data,
DCN is forcibly sent to terminate the communication.
Press the [JOB STATUS] button, and select the transmission job to cancel, then press the
[CANCEL] button on the LCD display to cancel the memory transmission or polling transmis-
sion.
Transmtter
Receiver
3
[
]
JOB STATUS button
[
]
CANCEL button
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(2) Binary signals
NSF
Non-Standard Facility
Informs that the receiving station (machine) has a non-standard facility.
NSC
Non-Standard Facility Command
Command to transmit using the non-standard facility which is selected corresponding to
NSF (i.e., Polling etc.).
NSS
CSI
CIG
TSI
Non-Standard Facility Setup
Command to transmit using the non-standard facility which is selected corresponding to
NSF or NSC.
Called Subscriber Identification
Provides the telephone number of the called station. Used to check the identity of the called
station.
Calling Subscriber Identification
Provides the telephone number of the calling station. Used to check the identity of the call-
ing station (Polling, etc.).
Transmitting Station Identification
Provides the telephone number of transmitting station. Used to check the identity of the
transmitting station.
DIS
Digital Identification Signal
Informs that the receiving station (machine) has a standard facility (G3/G2).
DTC
Digital Transmit Command
Command to transmit using the standard facility which is selected corresponding to DIS
(i.e., Polling, etc.).
DCS
Digital Command Signal
Commands to transmit using the standard facility which is selected corresponding to DIS or
DTC.
SUB
SEP
PWD
Sub-address
Indicates that the FIF information is a sub-address in the domain on the call-in side.
Select Polling
Indicates that the FIF information is a sub-address for the polling mode.
Password
Indicates that the FIF information is a password for the polling mode in a reception.
Indicates that the FIF information is a password for transmission in a transmission.
CFR
FTT
Confirmation of Reception
Informs that the FAX is ready to receive data.
Failure to Train
Informs that the TCF signal has not received correctly and requests the re-training.
EOM
End of Message
Informs that the the 1st page has been transmitted and there is the next page; command to
return to the beginning of the phase B.
MPS
Multi-page Signal
Informs that the 1st page has been transmitted and there is the next page; command to
return to the beginning of the phase C.
EOP
MCF
End of Procedure
Informs that a document has been transmitted and there is no more pages.
Message Confirmation
A reply to MPS, EOM or EOP; informing that image signals have been received correctly
and the FAX is ready to receive data.
RTN
Retrain Negative
Informs that a document has not been received correctly; requests for the retraining or
phase synchronization to receive the next page.
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PIP
PIN
Procedure Interrupt Positive
Informs that the image signals have been received correctly and requests the operator’s
reply by telephone or to return to the beginning of the phase B to continue the communica-
tion (i.e., CALL Request, etc.).
Procedure Interrupt Negative
Informs that the image signals have not been received correctly and requests for operator’s
reply by telephone or to return to the beginning of the phase B to continue the communica-
tion.
PRI-EOM Procedure Interrupt EOM
Command similar to EOM. Operation by operator is necessary.
PRI-MPS
PRI-EOP
DCN
Procedure Interrupt MPS
Command similar to MPS. Operation by operator is necessary.
Procedure Interrupt EOP
Command similar to EOP. Operation by operator is necessary.
3
Disconnect
Command to disconnect the FAX line and to connect the telephone line. Reply from the
other side is not necessary.
RR
Receive Ready
Informs that the FAX is ready to receive documents and requests for data to set the recep-
tion mode. (ECM mode)
RNR
PPR
Receive Not Ready
Informs that the FAX is not in the receivable state. (ECM mode)
Partial Page Request
Informs that a part of page (ECM block) has not been received correctly. The number of the
frame needs to be corrected is informed by the FIF. (EC mode)
PPS
CTC
Partial Page Signal
Informs that a part of page (ECM block) or one page has been transmitted. (EC mode)
Continue to Correct
Replies to the 4th PPR which requests to correct the image signal; informs that the trans-
mitting station will continue to correct the frame data. (ECM mode)
CTR
EOR
ERR
RTP
CRP
Response for Continue to Correct
Replies to CTC and informs that the receiving station has received and accepted the CTC.
(EC mode)
End of Retransmission
Informs that the transmitting station has completed the correction of the error frame data
(binary signal) of the previous ECM block. (ECM mode)
Response for End Retransmission
Replies to EOR and requests to transmit the image signal of the next ECM block. (ECM
mode)
Retrain Positive
Informs that the message has been received completely and that the subsequent message
can be continued after receiving the synchronization signal and CFR signal.
Command Repeat
Requests to resend all the commands including optional frames because the preceding
command has been received incorrectly.
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(3) Frame structure of binary signals
Each binary signal frame is comprised of the following sequence and fields. However, some
binary signals do not have the FIF field inserted.
F
F
A
C
FCF
FIF
FCS
F
Preample
F : Flag sequence
Indicates the start or end of a frame. Also establishes the frame synchronization.
A : Address field
Informs the address.
C : Control field
Informs if this frame is the last one in this procedure.
FCF: FAX control field
Informs the type of the binary signal.
FIF: FAX information field
Informs FAX information such as the functions.
FCS: Frame check sequence
Checks if there was any error in the transmission from A to FIF.
•
Format of F, A and C
Format
b
b
b
b
b
b
b
b
8
1
2
3
4
5
6
7
F
A
C
*
0
1
1
1
1
1
1
0
1
1
1
1
1
0
1
0
1
x
1
0
1
0
1
0
When this frame is the last frame, X = 1.
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•
FCF format of each binary signal
Format
Binary signal
b
b
b
b
b
b
b
b
8
1
2
3
4
5
6
7
NSF
NSC
NSS
0
0
0
0
0
1
0
0
1
x
0
1
x
0
1
x
x
1
1
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
0
1
0
0
1
0
0
1
1
0
0
1
0
0
1
1
1
0
0
0
0
1
1
1
1
1
0
0
1
1
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
1
0
0
1
0
1
1
1
0
0
0
0
0
0
0
1
0
1
0
0
0
0
1
0
0
1
1
0
0
1
1
1
1
1
1
0
0
0
0
0
1
0
0
1
1
1
0
0
0
1
0
1
0
0
1
0
1
0
0
1
0
0
0
1
0
1
1
1
0
0
0
1
1
0
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
1
0
0
1
0
1
0
1
0
0
1
0
1
1
1
0
1
1
0
1
0
CSI
CIG
TSI
DIS
DTC
3
DCS
SUB
SEP
PWD(Rx)
PWD(Tx)
CFR
FTT
EOM
MPS
EOP
MCF
RTN
PIP
PIN
PRI-EOM
PRI-MPS
PRI-EOP
DCN
RR
RNR
PPR
PPS
CTC
CTR
EOR
ERR
RTP
CRP
•
•
X = 1 for the station which received DIS.
X = 0 for the station which received a response signal to DIS.
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(4) Training
The training is performed in the binary procedure to surely transmit the image signals.
•
Training signal
The training signal is transmitted following the DCS signal at the modem speed specified by
the DCS signal. Responding to this training signal, the receiving side adjusts the auto-equal-
izer.
•
Format of the training signal
-
14.4 Kbps, 12 Kbps
Segment 1
Segment 2
Segment 3
Chain-store
Segment 4
Equalizer
adjustment
pattern
Alternation
of ABAB
information Scrambled binary data “1”
sequence
TCF
106 msec
1240 msec
27 msec
20 msec
1393 msec
-
9600 bps, 7200 bps
Segment 1 Segment 2 / Segment 3
Segment 4
Repeating 2-state
signal
Scrambled data “1”
TCF
V.29 No signal
(
)
(
)
Binary
Hexa or octal
20 msec
20 msec
53 msec+160 msec
253 msec
-
4800 bps, 2400 bps
Segment 1Segment 2
Non-
Segment 3
Segment 4
Segment 5
Continuous
180° phase
inversion
0° to 180°
2-phase pattern
Scrambled data “1”
modulated No signal
carrier
TCF
V.27ter
(
)
(
)
(
Hexa or octal)
Binary
Binary
4,800 bps: 923 msec,
2,400 bps: 1158 msec
•
TCF signal
An error may occur in the image data if the training is not performed correctly. The transmit-
ting side sends a TCF signal and checks if any error occurs in image data before the image
data communication to follow. When the receiving side detects an error in the TCF signal, it
transmits an FTT signal to the transmitting side to request the retraining. When there is no
error, the receiving side transmits a CFR signal.
The TCF signal transmits all zeros for 1.5 seconds at the same modem speed as that for the
training signal.
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3.2.3
V.8/V.34 communication sequence
1) Outline
-
V.8 is performed as a startup procedure to switch to V.34. V.8 can connect an existing facsimile
machine to the equipment using a data modem or other V-series modems. The V.34 modem has
a modem circuit previously recommended, allowing it to be also connected to the existing
modems while they are upper compatible.
-
New technologies such as the pre-emphasis technology *1 and the probing technology *2 are
fully used. The pre-emphasis technology *1 not only speeds up the modulation, but also gains
the S/N ratio. The probing technology examines the line characteristics and optimizes the
modem for the line condition. Therefore, not only do these technologies speed up the transmis-
sion momentarily, but also the average speed of the process during the data transmission is
increased.
3
-
-
For V.8 and the pre/post-FAX transmission for V.34, the procedure is speeded up by the full
duplex communication.
Following 14 types of the image transmission speed are available: *3
33.6 kbps/31.2 kbps/28.8 kbps/26.4 kbps/24.0 kbps/21.6 kbps/19.2 kbps/16.8 kbps/14.4 kbps/
12.0 kbps/9.6 kbps/7.2 kbps/4.8 kbps/2.4 kbps
-
The modulating speed (baud rate) *4 can be selected from 2,400, 3,000, 3,200 symbol/sec (man-
datory), or 2,743, 2,800, 3,429 symbol/sec (option). The data rate can be set more accurately
than the conventional modem.
*1 A signal is sent while raising the output level in the high-frequency band in which the noise
:
is relatively loud.
*2 Tone signal called “Probing Tone” is sent for the receiver to examine the line characteris-
:
tics of the line.
*3 In the ITU-T Recommendation, it is described as “data rate”. “Image transmission speed”
:
is the same as “data rate”.
*4 In the ITU-T Recommendation, it is described as “symbol speed”. The “Symbol rate”,
:
“Modulating speed”, and “Baud rate” are the same thing. This machine cannot realize the
speed of 2,743 symbol/sec.
Notes:
1. ECM is used in the V.34 procedure. If the setting for the ECM transmission/reception of the
user data is set to “Not performed”, the V.8 procedure is not performed and the procedure is
not switched to V.34. V.17 or lower is selected in this case.
2. When the transmission/reception speed is set to 14.4 kbps or slower, the V.8 procedure is not
performed, and V.17 or lower is selected.
3. See “Late start (P3-20)” to move to the V. 8/V.34 procedure after starting with the V.21 proce-
dure.
4. After the V.34 procedure is started, the fallback for the V.34 procedure is performed.
However, the fallback for the V.17 mode or lower mode is not performed.
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2) Standard procedure
Transmitter
Receiver
Line closed
The available modulation mode is in formed.
Each declares that it has V.34 capability. The
procedure moves to V.34 in the phase 2.
Network interaction
(
(
)
Phase 1
P3-14)
After the information about the modem capa-
bility is exchanged, the receiver determines
the modulation speed based on the result of
reception of the probing signal which was sent
by the transmitter.
Probing/Ranging
(
(
)
Phase 2
P3-15)
Equalizer/Echo
canceller training
To determine the image transmission speed,
the transmitter sends a training signal.
(
(
)
Phase 3
P3-16)
Final training
The optimum image transmission speed is
determined according to the training signal
received.
(
(
)
Phase 4
P3-16)
The pre-FAX transmission which is the same
as that for the normal T.30 is performed at
1,200 bps.
Control channel
P3-17)
(
The training signal is sent with the determined
parameter, then the image data are sent.
Primary channel
P3-18)
(
Image data
P3-18)
(
The post-FAX transmission which is the same
as that for the normal T.30 is performed at
1,200 bps.
Communication
end procedure
(
P3-19)
Line opened
Line opened
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-
Network interaction (Phase 1)
The V.8 procedure is performed as the startup procedure for the V.34 high-speed modem.
In the V.8 procedure, mainly the optimum modulation method (V series modem mode) that can
be operated between the transmitter and receiver is determined.
Transmitter
Signal name
Abbreviation
Function
Remarks
Calling tone
CNG
1100 Hz tone signal specified
by T.30 indicating the sender
is a FAX machine in the auto-
matic calling mode.
-
Call Menu signal
CM
Mainly indicates an available Modulated by V.21 (L) *1.
modulation method such as
V.21, V.27ter, V.29, V.17,
V.34, etc.
Transmission rate: 300 bps
3
CM terminator
CJ
CI
Indicates the detection of the Modulated by V.21 (L) *1.
JM signal or the termination of Transmission rate: 300 bps
CM signal.
Call Indicator signal
Indicates the general commu- For the late start only.
nication functions. It is sent
when the V.8 procedure is
restarted.
(P3-20)
Modulated by V.21 (L) *1.
Transmission rate: 300 bps
Receiver
Signal name
Abbreviation
Function
Remarks
Answer amplitude tone
ANSam
2100 Hz tone signal ampli-
tude-modulated to 15 Hz.
Tone equivalent to CED of the
conventional machine.
Joint Menu signal
JM
Indicates the terminal type
such as a FAX machine.
Modulated by V.21 (H) *1.
Transmission rate: 300 bps
Response to a CM sent from
the transmitter and informs
available modulation method.
*1 V.21 (L) ..........Low frequency channel defined by the V.21 recommendation 1,080±100 Hz
(980 Hz: 1, 1,180 Hz: 0)
V.21 (H)..........High frequency channel defined by the V.21 recommendation 1,750±100 Hz
(1,650 Hz: 1, 1,850 Hz: 0)
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-
Probing/Ranging (Phase 2)
Examines the line characteristics and sets the parameters for the modulation related items such
as the modulating speed.
Transmitter
Signal name
Abbreviation
Function
Remarks
INFO sequence
INFO0c
Informs the modem capability Transmission rate: 600 bps
such as modulating speed
and frequency transmission
capability (two frequency
bands (high and low) used to
examine the line characteris-
tics), and requests for adjust-
ing.
Tone B
B
Synchronization between the
modems by 1200 Hz tone sig-
nal
is a signal that shifts the
phase B 180°.
B
Tone
B
B
Line probing signal L1
Line probing signal L2
L1
L2
Tone signal to analyze the line Probing is to examine the line
characteristics by probing
characteristics.
Tone signal between 150
Hz and 3,750 Hz in units of
150 Hz
Receiver
Signal name
Abbreviation
Function
Remarks
INFO sequence
INFO0a
Informs the modem capability Transmission rate: 600 bps
such as the modulating speed
and frequency transmission
capability.
Tone A
A
Synchronization between the
modems by 2,400 Hz tone
signal
is a signal that shifts the
phase A 180°.
A
Tone
A
A
INFO sequence
INFO0h
Based on the analysis of the
line probing signal sent from
the transmitter, it informs the
pre-emphasis filter and modu-
lating speed to be used for the
data transmission.
Transmission rate: 600 bps
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-
Equalizer and echo canceller training (Phase 3)
Training (adjustment) is performed according to the parameters set in the phase 2 to optimize the
filters such as an equalizer.
Transmitter
Signal name
Abbreviation
Function
Short training
Remarks
S signal
S
is a signal made as the
S
result of phase transition of S.
signal
S
S
PP signal
PP
Used by the modem of the
receiver to train the equalizer.
TRN signal
TRN
Used by the receiver to deter-
mine the transmission rate.
3
-
Final training (Phase 4)
The settings such as the maximum value for the data rate, selection of the trellis encoder, and
data rate which can be supported are made in this phase.
Transmitter/receiver
Signal name
Abbreviation
Function
Remarks
PPh signal
PPh
Used by the modem of the
other side to train the equal-
izer.
ALT signal
ALT
-
Modulation parameter
E sequence
MPh
Informs the parameters used
for the image transmission
such as maximum data signal
rate and type of the trellis cod-
ing/pre-coding.
E
-
20 bit sequence of “1”s in
binary
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-
Control channel
The conventional T.30 procedure is performed. The transmission rate is 1200 bps.
Transmitter
Signal name
Abbreviation
Function
Remarks
Flag
flags
Maintains the synchroniza-
tion.
7E (H)
Non-standard facilities
setting
NSS
Receives an NSF sent from
the receiver. It selects the
available mode from the
received NSF, and specifies
the mode for the reception.
Transmitting Subscriber
ID
TSI
Informs the telephone number
of the transmitter.
Digital Command Signal
DCS
Specifies the mode that can
be used for the communica-
tion.
-
1
Declares to switch to the high- “1” is sent continuously.
speed procedure.
Receiver
Signal name
Abbreviation
Function
Remarks
Non-Standard Facilities
NSF
Informs the presence of the
facilities other than those rec-
ommended by ITU-T, abbrevi-
ated user names, and
manufacturer codes, etc.
Called Subscriber ID
Digital Identification Signal
Flag
CSI
DIS
Informs the telephone number
of the receiver.
Informs the standard facilities
recommended by ITU-T.
flags
CFR
Maintains the synchroniza-
tion.
7E (H)
Confirmation for Recep-
tion
Informs that the training of the
modem is completed, and the
receiver is ready to receive
the image signal.
Reference:
In the control channel, the frequency of the signals to be sent is different
between the transmission and reception. The signal echoed back has never
been misidentified as a signal sent from the other side. Therefore, this channel is
not influenced by signals echoed back.\
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-
Primary channel
The training is performed according to the parameters set in the phase 4. The transmission rate
is 1,200 bps.
Transmitter
Signal name
Abbreviation
Function
Short training
Remarks
S signal
S
is a signal that makes a
S
transition from phase S.
signal
S
S
PP signal
PP
Used by the modem of the
receiver to train the equalizer.
B1 sequence
B1
Scrambled data frame to be
sent when the startup process
is completed
3
-
Image data
Image data are sent.
Transmitter
Signal name
Abbreviation
Image data
Turn off
Function
Remarks
Image data
-
Encoded image data
-
Scrambled 1 is sent for 35
ms.
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-
Communication end procedure
This procedure is to terminate the communication. The transmission rate is 1,200 bps.
Transmitter
Signal name
Abbreviation
Function
Short training
Remarks
Sh signal
Sh
signal
Sh
Sh
ALT
ALT signal
-
-
E sequence
E
End of procedure signal
PPS-EOP
The transmission of one page
is completed.
Flag
flags
DCN
Maintains the synchroniza-
tion.
7E (H)
Disconnection signal
Informs to disconnect the line.
Receiver
Signal name
Abbreviation
Function
Remarks
Sh signal
Sh
Short training
signal
Sh
Sh
ALT
E
ALT signal
E sequence
Flag
-
-
flags
Maintains the synchroniza-
tion.
7E (H)
Message confirmation
MCF
Indicates that the image sig-
nal is received normally, and
the receiver is ready to
receive the next page.
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3) Example of protocol
The signals shaded in the following figure are the most important signals in the procedure.
-
Late start
The receiver cannot detect CM signal while it is sending the ANSam signal. Therefore, it sends a
DIS signal to inform the availability of V.8 support. The transmitter sends a CI signal that causes
the receiver to send another ANSam signal which makes the receiver move to the V.8 procedure.
Transmitter
Receiver
Line closed
3
(
DIS cannot
be recognized
)
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-
Multi-page sequence
In the same manner as the T.30 procedure, the transmitter sends a PPS-MPS signal after send-
ing the image data. The receiver sends an MCF signal and moves to the next page transmission.
Transmitter
Receiver
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Mode change
The transmitter and receiver send a PPS-EOM signal and an MCF signal respectively. Then the
receiver and transmitter send a DIS signal and a DCS signal respectively to change the mode.
Transmitter
Receiver
3
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-
Change of the image transmission speed by the receiver
The receiver sends a PPh signal responding to an Sh signal sent from the transmitter. Then, the
image transmission speed is determined according to the MPh sequence sent from the both
modems.
Transmitter
Receiver
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-
Change of the image transmission speed by the transmitter
The transmitter sends a PPh signal after sending the image data. The receiver returns a PPh sig-
nal. Then, the image transmission speed is determined according to the MPh sequence sent
from the both modems.
Transmitter
Receiver
3
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3.3 FAX Automatic Switching
3.3.1
General functions
There are two types of setting for the FAX Auto-Switching Mode Selection: TEL Mode and FAX Mode.
3.3.2
TEL mode
This mode is selected to prioritize telephone communication when the frequency of the fax reception is
low. When the TEL mode is selected, the automatic FAX reception function does not work. Therefore,
when a calling signal comes from the exchange, the telephone ringer continues ringing until the opera-
tor picks up the handset. When the operator has learned that the caller is sending a FAX, he has to per-
form the manual reception operation.
3.3.3
FAX mode
This mode is selected when the telephone circuit is used only for FAX communication. When the FAX
mode is selected and a calling signal comes from the exchange, the FAX reception operation starts
automatically without ringing the telephone ringer.
In the FAX mode, a calling number can be set up to 15 calls in the self-diagnosis setting “CI detection
counter” (13–372).
<Method of judging CNG detection>
0.5s
3s
CNG
CNG-off
detection T2
CNG-on detection T1
CNG-determined
•
As shown above, after CNG-on detection time T1 (175 ms) and CNG-off detection time T2 (350 ms)
have elapsed, and the T1 period has been turned on and then the T2 period off, CNG is determined
to have occurred once.
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4. ELECTRICAL CIRCUITS
4.1 Configuration
e-STUDIO3511/4511/350/450/200L/202L/203L/230/232/233/280/282/283
GD-1150
GD-1160
Speaker
FAX board
MDM board
CPU
Memory
Flash ROM
4Mbit x 1
CODEC
MN86064
Memory
95C265
1Mbit x 6
1Mbit x 4
CODEC
4
MN86064
FAX ASIC
V.34 modem
V.34 modem
FM336PLUS
TENNESEE
FM336PLUS
SYS - FAX
I/F harness
NCU 1
NCU 2
Fig. 4-1
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e-STUDIO281c/351c/451c, e-STUDIO352/353/452/453
GD-1200
GD-1160
Speaker
FAX board
MDM board
CPU
Memory
Flash ROM
4Mbit x 1
CODEC
Memory
95C265
1Mbit x 6
MN86064
1Mbit x 4
CODEC
MN86064
FAX ASIC
V.34 modem
FM336PLUS
V.34 modem
FM336PLUS
TENNESEE
SYS - FAX
I/F harness
FAX PWR
board
NCU
1
NCU
2
Fig. 4-2
GD-1150/1151/1200/1201/1160/1260
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e-STUDIO202L/203L/232/233/282/283
GD-1151
GD-1260
Speaker
FAX board
MDM board
CPU
Memory
Flash ROM
4Mbit x 1
CODEC
MN86064
Memory
95C265
4Mbit x 2
4Mbit x 1
CODEC
MN86064
FAX ASIC
V.34 modem
V.34 modem
FM336PLUS
TENNESEE
FM336PLUS
4
SYS - FAX
I/F harness
NCU 1
NCU 2
Fig. 4-3
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e-STUDIO281c/351c/451c, e-STUDIO352/353/452/453
GD-1201
GD-1260
Speaker
FAX board
MDM board
CPU
Memory
Flash ROM
4Mbit x 1
CODEC
Memory
95C265
4Mbit x 2
MN86064
4Mbit x 1
CODEC
MN86064
FAX ASIC
V.34 modem
FM336PLUS
V.34 modem
FM336PLUS
TENNESEE
SYS - FAX
I/F harness
FAX PWR
board
NCU
1
NCU
2
Fig. 4-4
GD-1150/1151/1200/1201/1160/1260
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4.2 Description of Circuits
4.2.1
Configuration
This section describes the function of each circuit.
The NCU board consists of the transformer, relay, analog switch and other peripheral devices. It con-
trols switching of the line path, generates the dial pulses, detects the line current and ring signal, and
monitors the line.
The NCU board is connected to CN501 on the FAX board. It can be also connected optionally to
CN502.
The description in this section is based on the NCU board for Line 1.
NA/TW models
NCU board
REVA
REVB
4
IC53
Line current
detection
circuit
Lb
La
T1
TXOUT
Line
IC51
IC53
IC52
Analog
switch
AG
RXIN
~
~
DB1
IC52
CNG signal
detection
circuit
-
+
ANSDET
Dial pulse
generation
circuit
LD
a2
b2
FAX board
External
telephone
DC
consumption
circuit
ATT3DB
CML
1
0
1
0
RLY2
CML relay
Ring signal
detection
circuit
CI
Fig. 4-5
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EU/AU/AS/C models
NCU board
REVA
REVB
Line current
detection
circuit
CML
LD
Dial pulse
generation
circuit
1
0
Lb
IC5
IC6
IC6
Line
1
0
T1
TXOUT
La
Analog
switch
ATT3DB
RLY4
Relay
RLY3
CML relay
a2
FAX board
IC3
IC4
External
telephone
AG
RXIN
Analog
switch
b2
IC4
~
CNG signal
detection
circuit
ANSDET
DB1
-
+
RLADJ1
RLADJ2
DC
consumption
circuit
~
Ring signal
detection
circuit
CI
Fig. 4-6
GD-1150/1151/1200/1201/1160/1260
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4.2.2
Line path switching control circuit
NA/TW models
NCU board
FAX board
C5
R4
3
6
3
6
CML1
21
22
Q51
AG
IC29
RLY2
CML relay
+12V
[
]
IC26
ATT3DB1
R67
ASIC
1
9
12
R71
1
0
8
T1
4
3
Lb
La
10
9,11
10
IC51
Line
1
0
4
Analog
switch
3
IC53
1
AG
3
1
4
2
1
2
1
2
TXOUT1 28,29
0
IC12
[
IC53
]
R59
IC9
5
IC52
1
2
1
0
7
3
4
a2
b2
15
14
6
7
RXIN1
32
6
MODEM
External
telephone
R66
R68
13
1
0
4
Ring signal
detection
circuit
Fig. 4-7
The line path switching control circuit consists of the CML relay (RLY2) and analog switch (IC51) on the
NCU board, the ASIC (IC29 [IC26]) on the FAX board and the other peripheral devices.
The CML relay is switched according to the CML1 signal output from the ASIC on the FAX board. When
the CML1 signal goes HIGH, Q51 comes on to turn ON the CML relay.
The analog switch is switched according to the CML1 signal and ATT3DB1 signal. When the CML1 sig-
nal or ATT3DB1 signal goes HIGH, the analog switch is turned ON.
Turning ON the CML relay and analog switch allow the MODEM to be connected to the line.
Signal Name
CML1
ATT3DB1
Type
O
Active
Description
Line 1 CML Relay Control Signal
Line 1 Attenuator Control Signal
Destination
RLY2, IC51
IC51
H
H
O
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
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EU/AU/AS/C models
NCU board
Line current
detection
circuit
FAX board
3
6
7
8
3
6
7
8
CML1
21
22
24
25
Q4
AG
IC29
IC26
RLY3
+12V
1
ATT3DB1
RLADJ11
RLADJ21
[
]
CML relay
ASIC
IC5
12
Analog switch
0
C7
R28
1
0
5
3
T1
13
14
15
16
R26
4
Lb
4
9
R29
C13
1
2
3
IC6
IC3
3
1
2
Line
RLY4
Relay
1
0
8
3
2
La
a2
10
R31
R36
C12
2
3
1
AG
11
10
+12V
11 10
External
telephone
4
Analog
switch
R32
R30
C14
5
b2
R11
1
2
1
0
1
2
1
2
TXOUT1
RXIN1
28,29
32
15
14
IC12
[
]
IC9
IC6
5
7
13
12
1
0
IC4
MODEM
6
7
IC7
1
2
4
Q9
AG
Ring signal
detection
circuit
Fig. 4-8
The line path switching control circuit consists of the CML relay (RLY3) and analog switch (IC3, IC5) on
the NCU board, the ASIC (IC29 [IC26]) on the FAX board, and the other peripheral devices. It changes
the path for the FAX send/receive signals and connects it to each control circuit.
The CML relay is switched according to the CML1 signal output from the ASIC on the FAX board. When
the CML1 signal goes HIGH, Q4 comes on to turn ON the CML relay.
The analog switch (IC3) is switched according to the CML1 signal and ATT3DB1 signal. When the
CML1 signal or ATT3DB1 signal goes HIGH, the analog switch is turned ON.
The analog switch (IC5) is switched according to the RLADJ11 and RLADJ12 signals.
The analog switch is switched according to the states of the RLADJ11 and RLADJ21 signals.
Turning ON the CML relay and analog switch allow the MODEM to be connected to the line.
Signal Name
CML1
Type
O
Active
Description
Destination
RLY3, IC3
H
H
H
Line 1 CML Relay Control Signal
Line 1 Attenuator Control Signal
Line 1 Return Loss Adjustment Signal
ATT3DB1
O
IC3
IC5
RLADJ11, 21
O
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
GD-1150/1151/1200/1201/1160/1260
ELECTRICAL CIRCUITS
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4.2.3
Dial pulse generation circuit
NA/TW models
NCU board
FAX board
C5
R4
RLY2
+12V
CML relay
3
3
CML1
21
1
12
Q51
AG
1
0
8
4
3
Lb
La
9
4
10
~
~
Line
DB1
-
1
0
IC29
IC26
3
+
[
]
+5V
1
ASIC
4
3
PC1
2
Q53
SG
3
4
a2
b2
External
telephone
4
4
LD1
20
4
Ring signal
detection
circuit
Fig. 4-9
The dial pulse generation circuit consists of the diode bridge (DB1), photocoupler (PC1), the ASIC
(IC29 [IC26]) on the FAX board and the other peripheral devices. It generates the dial pulses in the FAX
transmission and dialing to the outside.
The ASIC makes the CML1 signal become HIGH to connect the line to the MODEM side. To generate
the dial pulse, the ASIC makes the LD1 signal become HIGH to turn ON Q53. This allows the photo-
coupler to come on and the current flows through the DB1 to send the dial pulses to the line.
Signal Name
LD1
Type
Active
Description
Destination
O
H
Line 1 Dial Pulse Generation Signal
Q53
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
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EU/AU/AS/C models
NCU board
FAX board
RLY3
+12V
CML relay
3
3
CML1
21
1
12
Q4
AG
+5V
1
1
0
5
3
IC29
IC26
4
Lb
4
9
6
4
[
]
IC1
Line
2
1
0
8
ASIC
3
2
La
a2
10
4
4
LD1
20
Q6
External
telephone
SG
5
b2
T1
Line path
switching
circuit
AG
Ring signal
detection
circuit
Fig. 4-10
The dial pulse generation circuit consists of the photocoupler (IC1), the ASIC (IC29 [IC26]) on the FAX
board and the other peripheral devices. It generates the dial pulses in the FAX transmission and dialing
to the outside.
The ASIC makes the CML1 signal become HIGH to connect the line to the MODEM side. To generate
the dial pulses, the ASIC makes the LD1 signal become HIGH to turn ON Q6. This allows the photocou-
pler to come on and the current flows through the line for sending a dial attempt.
Signal Name
LD1
Type
Active
Description
Destination
O
H
Line 1 Dial Pulse Generation Signal
Q6
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
GD-1150/1151/1200/1201/1160/1260
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4.2.4
Line current detection circuit
NA/TW models
NCU board
FAX board
R87
19
19 REVA1
2
1
2
8
7
IC29
IC26
[
]
PC3
PC3
ASIC
C7
20
20 REVB1
3
3
4
6
5
R86
4
Lb
Line
SG
Fig. 4-11
4
The line current detection circuit consists of the photocoupler (PC3), ASIC (IC29 [IC26]) on the FAX
board and the other peripheral devices. It detects a dial tone and the hook status of the external tele-
phone from the current flowing through the line.
When a dial tone is input from the telephone line, current flows through the line and the photocoupler is
repeatedly turned ON/OFF. This allows the REVA1 and REVB1 to be the pulse signals and input to the
ASIC, then the dial tone is detected.
When the handset is lifted from the external telephone, current also flows through the line and the pho-
tocoupler is turned ON/OFF, then the off-hook state is detected.
Signal Name
REVA1
REVB1
Type
Active
Description
Destination
IC29 [IC26]
IC29 [IC26]
I
I
-
-
Line 1 Current Detection Signal
Line 1 Reverse Current Detection Signal
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
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EU/AU/AS/C models
NCU board
FAX board
1
8
19
19
REVA1
2
IC2
IC29
IC26
[
]
Line current
detection
IC
ASIC
R26
4
Lb
2
7
20
20
REVB1
3
Line
Fig. 4-12
The line current detection circuit consists of the line current detection IC (IC2), ASIC (IC29 [IC26]) on
the FAX board, and the other peripheral devices. It detects a dial tone and the hook status of the exter-
nal telephone from the current flowing through the line.
When a dial tone is input from the telephone line, current flows through the line. The line current detec-
tion IC sends REVA1 and REVB1 to the ASIC as pulse signals. This allows a dial tone to be detected.
Signal Name
REVA1
REVB1
Type
Active
Description
Destination
IC29 [IC26]
IC29 [IC26]
I
I
-
-
Line 1 Current Detection Signal
Current Reverse Line 1 Current Detection
Signal
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
GD-1150/1151/1200/1201/1160/1260
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4.2.5
CI detection circuit
NA/TW models
NCU board
FAX board
+12V
RLY2
CML relay
3
3
CML1
21
1
12
10
3
Q51
AG
1
0
IC29
IC26
4
3
Lb
La
9
4
5VPS
[
]
ZD1 ZD3 C1
R2
Line
ASIC
1
0
R79
17
17
CI1
4
1
4
3
D52
PC2
2
SG
Fig. 4-13
4
The CI detection circuit consists of the photocoupler (PC2), ASIC (IC29 [IC26]) on the FAX board and
the other peripheral devices to detect a ring signal input from the telephone line.
The ASIC makes the CML1 signal become LOW to connect the CI detection circuit to the telephone
line.
When a ring signal is input from the telephone line, the photocoupler is repeatedly turned ON/OFF. This
allows the CI1 signal to become a pulse signal and input to the ASIC on the FAX board, thereby detect-
ing the ring signal.
Signal Name
CI1
Type
Active
Description
Line 1 CI Detect Signal
Destination
IC29 [IC26]
I
-
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
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EU/AU/AS/C models
NCU board
FAX board
RLY3
+12V
CML relay
1
4
12
3
3
3
CML1
21
Q4
AG
1
0
4
3
Lb
La
IC29
IC26
5VPS
C8
R4
ZD2 ZD3
[
]
Line
1
0
9
ASIC
10
R34
1
2
4
3
D2
PC1
17
17
CI1
4
Q5
SG
R35
Fig. 4-14
The CI detection circuit consists of the photocoupler (PC1), ASIC (IC29 [IC26]) on the FAX board and
other peripheral devices to detect a ring signal input from the telephone line.
The ASIC makes the CML1 signal become LOW to connect the CI detection circuit to the line. When a
ring signal is input from the telephone line, the photocoupler is repeatedly turned ON/OFF. This allows
Q5 to be turned ON/OFF and the CI1 signal to become a pulse signal and input to the ASIC on the FAX
board, thereby detecting the ring signal.
Signal Name
CI1
Type
Active
Description
Destination
IC29 [IC26]
I
-
Line 1 CI Detection Signal
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
GD-1150/1151/1200/1201/1160/1260
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4.2.6
Line monitor circuit
NA/TW models
(
NCU board Line1
)
FAX board
[
28,29 25,26
]
]
IC12
[
RLY2
IC51
]
IC9
[
32 9
R67
R71
CML relay
Analog
switch
MODEM
IC53
2
8
T1
3
1
0
4
3
Lb
La
9
4
1
4
1
6
1
2
1
2
TXOUT1
RXIN1
0
Line
IC53
1
0
IC45
R59
IC52
7
5
6
7
1
2
1
0
[
]
15
14
2
1
12
RING
43
IC12
+12V
AG
CPU
12
IC3
6
3
6
3
R66
R68
13
1
0
Analog
switch
9
MF-SEL
SP-SEL
MON
6
15
26
13
14
15
12
1
14
10
11
9,11 10
R273
R272
R271
R270
R268
R267
R266
IC29
IC26
[
]
ATT3DB1 22
CML1 21
Q51
AG
ASIC
VOLSEL0 16
VOLSEL1 17
VOLSEL2 18
2
RXIN2
(
NCU board Line2
)
IC9
IC2
[
]
Analog
switch
5
4
2
Speaker
[
IC10 IC1
]
SP+
SP-
1
2
5
3
3
4
AG
11
10
9
SG
Fig. 4-15
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
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EU/AU/AS/C models
(
NCU board Line1
)
FAX board
[
28,29 25,26
]
]
IC12
[
]
IC9
RLY3
[
32 9
MODEM
CML relay
IC6
1
0
5
8
T1
1
2
1
2
1
2
TXOUT1
RXIN1
4
3
Lb
La
4
9
IC3
Line
1
0
IC45
IC4
Analog
switch
[
]
6
7
2
1
12
RING
43
IC12
IC6
+12V
AG
R11
CPU
5
7
1
2
1
0
IC3
1
12
15
14
6
3
6
3
Analog
switch
13
1
0
9
MF-SEL
SP-SEL
MON
6
15
26
13
14
15
12
1
14
10
11
11
10
R273
R272
R271
R270
R268
R267
R266
IC29
IC26
ATT3DB1 22
CML1 21
[
]
Q4
AG
ASIC
VOLSEL0 16
VOLSEL1 17
VOLSEL2 18
2
RXIN2
(
NCU board Line2
)
IC9
IC2
[
]
Analog
switch
5
2
Speaker
[
IC10 IC1
]
SP+
SP-
1
2
5
3
4
AG
11
10
9
SG
Fig. 4-16
The line monitor circuit consists of the CML relay (NA/TW: RLY2, EU/AU/AS/C: RLY3), analog switch
(NA/TW: IC51, EU/AU/AS/C: IC3), the ASIC (IC29 [IC26]) and analog switches (IC3, IC9 [IC3, IC2]) on
the FAX board, and other peripheral devices. It switches the telephone line path using the analog
switch and monitors the line status and ringer signal in the FAX transmission and reception using the
speaker connected to CN503 on the FAX board. It also switches the analog switch to output a buzzer
tone from the speaker.
The signal to be monitored is selected by switching the analog switch (IC3) according to SP-SEL signal
and MON signal which are output from the ASIC.
To monitor the line during the transmission and reception, the ASIC makes the CML1 signal become
HIGH to switch the analog switch and connect the line to the MODEM side.
For the line path switching control, refer to
The relation between the signal levels and monitoring signals is as follows.
Monitoring signal
SP-SEL
LOW
HIGH
-
MON
HIGH
HIGH
LOW
LINE Monitor
Ringer/Alarm
Line 1
Line 2
The monitoring signal selected by IC3 is input to the analog switch (IC9 [IC2]) to select the output
sound volume. The sound volume is selected by switching IC8 according to the VOLSEL0-2 signals
output from the ASIC and selecting an input resistance for the monitoring signal.
GD-1150/1151/1200/1201/1160/1260
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The relation between the signals and sound volume is as follows.
Sound volume
VOLSEL2
VOLSEL1
VOLSEL0
Max. (7)
(6)
LOW
LOW
LOW
LOW
LOW
HIGH
LOW
(5)
LOW
HIGH
HIGH
LOW
(4)
LOW
HIGH
LOW
(3)
HIGH
HIGH
HIGH
HIGH
(2)
LOW
HIGH
LOW
Min. (1)
Silent (0)
HIGH
HIGH
HIGH
The monitoring signal whose volume is controlled by IC9[IC2] is amplified by the OP amplifier (IC10
[IC1]), then output to the speaker.
Signal Name
Type
Active
Description
Destination
4
SP-SEL
O
H
H
H
Line/Tone Selection Signal
IC3
IC3
MON
O
Ring/Tone Selection Signal
Speaker Volume Control Signals 0-2
VOLSEL0-2
O
IC9 [IC2]
*
Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and
GD-1151/1201.
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GD-1150/1151/1200/1201/1160/1260
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2) PWA-F-FAX-670
4
Fig. 4-18
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3) PWA-F-NCU-US-562/PWA-F-NCU-631-US
Fig. 4-19
GD-1150/1151/1200/1201/1160/1260
ELECTRICAL CIRCUITS
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4) PWA-F-NCU-EU-562/PWA-F-NCU-631-EU
4
Fig. 4-20
5) PWA-F-MDM-563
Fig. 4-21
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6) PWA-F-MDM-631
Fig. 4-22
7) PWA-F-FAX-POWER-610
Fig. 4-23
GD-1150/1151/1200/1201/1160/1260
ELECTRICAL CIRCUITS
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8) PWA-F-FAX-POWER-631
Fig. 4-24
4
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GD-1150/1151/1200/1201/1160/1260
ELECTRICAL CIRCUITS
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5. INSTALLATION
5.1 Explanation to the Users
After installing the FAX unit, explain the following items to the user using the Operator’s Manual.
With the underlined items, actually demonstrate the operation.
Items to be explained
•
Switches and control panel
-
-
Summary of the control panel (FAX functions)
After power is turned OFF, image data are kept in HDD.
•
How to set originals
-
-
Acceptable original size and scanning width
How to insert originals:
Multiple originals placed on the RADF are scanned from the first page.
Unacceptable originals
How to set the mode (image quality) and density (contrast)
-
-
•
Transmission method
-
-
-
-
-
-
-
Manual transmission
Monitor dialing
Direct dialing (with the digital keys)
Phone book dialing
Delayed transmission
Multi transmission
Redialing
5
•
•
•
•
Recording paper size
-
-
Recording paper size
How to change the recording paper size
Automatic/manual reception
-
-
How to switch the automatic and manual reception
How the machine works and how to operate it when a FAX is received in these modes
Other functions
-
-
Memory reception (with the power kept ON)
How to set the power saving mode
Polling
-
-
-
Polling operation
How to operate the polling reception and transmission
How the multi-polling reception works and how to operate it
•
•
How to register addresses
-
-
-
How to register new addresses in the Phone Book
How to correct or erase the contents of the Phone Book
Group registration in the phone book for the multi-transmission or multi-polling
How to output lists
How to output the TRANSMISSION JOURNAL and RECEPTION JOURNAL
-
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INSTALLATION
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GD-1150/1151/1200/1201/1160/1260
INSTALLATION
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