General Precautions for Installation/Servicing/Maintenance
for the MR-2017/2020
The installation and service should be done by a qualified service
technician.
1) When installing the MR-2017/2020 to the Equipment, be sure to follow the instructions described in
the “Unpacking/Set-Up Procedure for the MR-2017/2020” booklet which comes with each unit of the
MR-2017/2020.
2) The MR-2017/2020 should be installed by an authorized/qualified person.
3) The equipment must be grounded for safety.
4) Before starting installation, servicing or maintenance work, be sure to turn OFF and unplug the
equipment first.
5) The equipment shall be installed near the socket outlet and shall be easily accessible.
6) Be sure to fix and plug in the power cable securely after the installation so that no one trips over it.
7) Unplug the power cable and clean the area around the prongs of the plug and socket outlet once a
year or more. A fire may occur when dust lies on this area.
8) The MR-2017/2020 should be grounded to the specified positions on the mochine frame.
9) When servicing or maintaining the MR-2017/2020, be careful about the rotating or operation sec-
tions such as gears, pulleys, sprockets, cams, belts, etc.
10)Reassembly of disassembled parts is the reverse of the disassembly unless otherwise noted in this
manual or other related documents.
Care should be taken that small parts, such as screws, washers, pins, E-rings, star washers, har-
nesses are not installed in the wrong places.
11)Basically, the machine should not be operated with any parts removed or disassembled.
12)Delicate parts for preventing safety hazard problems (such as switches, sensors, etc. if any) should
be handled/installed/adjusted correctly.
13)Use suitable measuring instruments and tools.
14)During servicing or maintenance work, be sure to check the serial No. plate and other cautionary
labels (if any) to see if they are clean and firmly fixed. If not, take appropriate actions.
15)The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband,
because the ICs on it may be damaged due to static electricity. Before using the wrist band, pull out
the power cord plug of the equipment and make sure that there is no uninsulated charged objects in
the vicinity.
16)For the recovery and disposal of used MR-2017/2020, consumable parts and packing materials, fol-
low the relevant local regulations/rules should be followed.
17)After completing installation, servicing and maintenance of the MR-2017/2020, return the MR-2017/
2020 to its original state, and check operation.
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MR-2017/2020
1. SPECIFICATION........................................................................................................... 1-1
2. GENERAL DESCRIPTION............................................................................................ 2-1
2.1 Main Components................................................................................................................2-1
2.2 Sectional View .....................................................................................................................2-2
2.3 Electric Parts Layout............................................................................................................2-3
2.4 Symbols and Functions of Various Components.................................................................2-4
2.5 Diagram of Signal Blocks.....................................................................................................2-5
2.6 Description of Interface Signals...........................................................................................2-6
3. DESCRIPTION OF OPERATIONS ............................................................................... 3-1
3.1 DRIVE SYSTEM..................................................................................................................3-1
3.1.1 Outline......................................................................................................................3-1
3.1.2 Original feed motor drive section..............................................................................3-2
3.1.3 Read motor drive section .........................................................................................3-3
3.2 Original Size Detection ........................................................................................................3-4
3.2.1 Outline......................................................................................................................3-4
3.2.2 Original tray width sensor.........................................................................................3-4
3.3 FLOW CHART.....................................................................................................................3-5
3.4 DESCRIPTION OF CIRCUIT...............................................................................................3-9
3.4.1 Drive Circuit for Feed Motor .....................................................................................3-9
3.4.2 Drive Circuit for Read Motor...................................................................................3-10
3.4.3 Reset Circuit ..........................................................................................................3-11
3.4.4 Drive Circuit for Pickup Solenoid ...........................................................................3-11
4. DISASSEMBLY AND ASSEMBLY............................................................................... 4-1
4.1 Cover ...................................................................................................................................4-1
4.2 Roller ...................................................................................................................................4-5
4.3 Motor / Motor drive section ...............................................................................................4-16
4.4 Solenoid.............................................................................................................................4-21
4.5 Sensor/switch ....................................................................................................................4-22
4.6 PC Board ...........................................................................................................................4-29
4.7 Others................................................................................................................................4-30
5. ADJUSTMENT .............................................................................................................. 5-1
5.1 Adjustment of Position.........................................................................................................5-1
5.2 Adjustment of Height ...........................................................................................................5-7
5.3 Adjustment of Skew.............................................................................................................5-9
5.4 Adjustment of the Leading Edge Position..........................................................................5-11
5.5 Adjustment of Horizontal Position......................................................................................5-12
5.6 Adjustment of Copy Ratio..................................................................................................5-13
5.7 Adjustment of ADF Opening/Closing Sensor.....................................................................5-14
6. TROUBLESHOOTING .................................................................................................. 6-1
6.1 Troubleshooting for Mechanical Errors................................................................................6-1
6.2 Troubleshooting for Electrical Errors ...................................................................................6-2
6.3 Jam......................................................................................................................................6-3
7. MAINTENANCE AND REWRITING ROM .................................................................... 7-1
7.1 Periodic Maintenance ..........................................................................................................7-1
7.2 Rewriting ROM (Firmware Updating)...................................................................................7-2
8.1 Assembly of PC Board.........................................................................................................8-1
8.2 Circuit Diagram....................................................................................................................8-2
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MR-2017/2020
CONTENTS
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8.3 Control PC Board Circuit .....................................................................................................8-4
MR-2017/2020
CONTENTS
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1. SPECIFICATION
1
Item
MR-2017
MR-2020
Maximum number of originals Up to 100 sheets or 16 mm in height.
←
←
2
on the original feeding tray
*
50 - 80 g/m (13.3 - 21.3 lb. Bond)
Acceptable paper size
A5-R, A4, A4-R, B5, B5-R, B4, A3,
FOLIO, ST-R, LT, LT-R, LG, LD, COM-
PUTER
2
Acceptable paper weight
Dimensions
←
50 - 127 g/m
(13.3 lb. Bond - 33.8 lb. Cover)
W600 x D513 x H135 (mm)
W575 x D528 x H135 (mm)
*
Excluding hinges and original tray
*
Excluding original tray
Weight
Approx 11 kg
Approx. 30W
DC5 V, DC24 V
←
←
←
Power consumption
Power requirements
*
Supplied from the equipment
Co-packed items
Unpacking Instruction (1 set)
Charts (A4/LT: 1 sheet each)
Mounting screws (6 pcs)
Positioning pins (2 pcs)
Washer (1 pc)
Unpacking Instruction (1 set)
Charts (A4/LT: 1 sheet each)
Mounting screws (6 pcs)
Positioning pins (2 pcs)
Washer (1 pc)
Hinge bracket (1 pc)
Hinge bracket (1 pc)
Hinge bracket fixing screw(2 pcs)
Stopper bracket (1 pc)
Stopper bracket fixing screw (2 pcs)
Connector cover (1 pc)
Hinge bracket fixing screw(2 pcs)
Hinge bracket cover (1 pc)
Connector cover (1 pc)
Applicable models
Remarks
e-STUDIO163/203
e-STUDIO165/205
e-STUDIO166/206
e-STUDIO167/207/237
e-STUDIO181/211
e-STUDIO182/212/242
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SPECIFICATION
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MR-2017/2020
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SPECIFICATION
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2. GENERAL DESCRIPTION
2.1 Main Components
Original tray section
2
Drive/Control section
Original exit tray section
Feeding/Transporting section
Fig. 2-1
Location
Components
Feeding/Transporting
section
Pickup roller
Feed roller
Separation roller
Original empty sensor (S3)
Original registration sensor (S4)
Read sensor (S5)
Registration roller
Original exit sensor (S6)
Jam access cover sensor (S7)
Intermediate transfer roller
Pre-reading roller
Platen roller
Post-reading roller
Exit roller
Original tray section
Original width guide
Original tray
Original tray sensor (S1)
Original tray width sensor (S2)
Original exit tray section Original exit tray
Drive/Control section
Original feed motor (M1)
Read motor (M2)
Original pickup solenoid (SOL)
ADF opening/closing sensor (S8)
Jam access cover opening/closing switch (SW)
ADF control PC board (ADF)
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2.2 Sectional View
TRY2
TRY1
R4
R2
R3
R1
R5
R6
R7 FLP R8
Fig. 2-2
TRY1 Original tray
R4
R5
R6
R7
R8
Registration roller
TRY2 Original exit tray
Intermediate transfer roller
Pre-reading roller
Post-reading roller
Exit roller
FLP
R1
Exit gate
Pickup roller
Feed roller
R2
R3
Separation roller
MR-2017/2020
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2.4 Symbols and Functions of Various Components
1) Motors
Symbol
Name
Original feed motor
Read motor
Function
M1
Drives the original feed roller, pickup roller and registration roller.
M2
Transports originals by driving the intermediate transport roller, front
read roller, rear read roller and exit roller.
2) Sensors and Switches
Symbol
Name
Function
S1
Original tray sensor
Original tray width sensor
Original empty sensor
Original registration sensor
Read sensor
Detects the length of the original set on the original tray.
Detects the width of the original set on the original tray.
Detects the original set on the original tray.
S2
S3
S4
Detects transport of the original at the registration roller section.
Detects the leading edge of the original at the original scanning section.
Detects the exit (transit) of an original.
S5
S6
Original exit sensor
Jam access cover sensor
S7
Detects opening/closing of the Jam access cover.
S8
ADF opening/closing sensor Detects opening/closing of the ADF.
SW
Jam access cover opening/
closing switch
Switches between cutoff and supply state of the 24 V power by open-
ing/closing of the jam access cover.
3) Solenoid
Symbol
Name
Function
SOL
Original pickup solenoid
Drives up and down the original pickup roller.
4) PC board
Symbol
Name
Function
ADF
ADF control PC board (ADF Controls the ADF.
board)
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2.5 Diagram of Signal Blocks
Equipment
ADF
RxD
TxD
(
Original feed motor M1
)
Driver
Driver
Driver
(
Read motor M2
)
REQ
2
(
Original pickup solenoid SOL
)
ACK
DF-REQ
DF-ACK
(
Original tray sensor S1
)
SCAN-ST
CNT
(
Original tray width sensor S2
)
CPU
(
Original empty sensor S3
)
(
Original registration sensor S4
)
(
)
Read sensor S5
Original exit sensor S6
Jam access cover sensor S7
DC 24V
DC 5V
(
)
(
)
(
RADF opening/closing sensor S8
)
(
Jam access cover opening/closing switch SW
)
Reset IC
Downlad jig
Fig. 2-4
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GENERAL DESCRIPTION
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2.6 Description of Interface Signals
The following 6 lines are used to transmit/receive signals between the equipment and the ADF.
REQ ......................Communication request signal (from equipment to the ADF)
DF-REQ ................Communication request signal (from the ADF to equipment)
DF-ACK.................Communication request acknowledging signal (from the ADF to equipment)
ACK.......................Communication request acknowledging signal (from equipment to the ADF)
TxD .......................Data transmitted from equipment to the ADF
RxD.......................Data transmitted from the ADF to equipment
Data communication (RxD and TxD) between the scanner and the ADF has adopted the serial commu-
nication system which does not allow checking using testing devices to see whether the signals are
transmitted/received properly in the field.
RADF
Equipment
REQ
DF-ACK
TxD
DF-REQ
ACK
RxD
Fig. 2-5
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3. DESCRIPTION OF OPERATIONS
3.1 DRIVE SYSTEM
Feed motor drive section
3
Read motor drive section
Fig. 3-1
3.1.1
Outline
Originals are transported by the original feed motor and read motor. Each motor has a drive section for
the following operations:
Original feed motor drive section:
Read motor drive section:
picks up originals and drives the registration roller.
transports originals and drives parts such as the exit roller.
The Original feed motor rotates reversely when the originals are being transported at the registration
roller, compared to its rotational direction when they are being picked up.
The read motor always rotates in a constant direction.
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3.1.2
Original feed motor drive section
Original feed motor
Oneway clutch
Pickup roller
Feed roller
Oneway clutch
Separation roller
Pickup
Feed
Registration roller
Fig. 3-2
When an original is placed on the original tray and the RADF receives a feed request signal from the
equipment, the feeding of the original is started.
The original empty sensor detects the presence of the original, and then the pickup roller is lowered by
the drive from the original pickup solenoid.
The Original feed motor rotates, and the pickup roller and the feed roller then rotate in a normal direc-
tion (shown in a solid line in the figure) to guide the original into the transport path. Then the original is
transported to the registration roller to be aligned.
The original aligned with the registration roller is then transported by the reverse rotation of the Original
feed motor (shown in a dotted line in the figure).
A one-way clutch is installed inside of each gear of the feed roller and the registration roller, so these
gears will not be driven in a reverse rotation.
When the original empty sensor detects that there is no original on the original tray, the original pickup
solenoid is turned OFF and the pickup roller is raised.
The original pickup solenoid is the one can operate both suction and recovery.
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3.1.3
Read motor drive section
Read motor
Exit roller
3
Pre-reading roller
Post-reading roller
Intermediate transfer roller
The transported original is driven by the read motor.
Then the original is transported to a scanning start position by the intermediate transfer roller and pre-
reading roller.
The original transported to the scanning start position is then scanned in the scanner function of the
equipment.
When the data of the original have been scanned, the original is then transported to the original exit tray
side by the post-reading roller.
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3.2 Original Size Detection
Original tray width sensor
Fig. 3-3
3.2.1
Outline
When an original is placed on the original tray, the width of the original is detected by the positions of
the original width guides.
3.2.2
Original tray width sensor
The original tray width sensor detects the width of an original placed on the original tray.
It is detected by the brush attached to the rack moving on the original tray width sensor, which is a
board with the different length of the patterns written.
This brush is moved as the original width guide is moved. Signals (TWID0S, TWID1S, TWID2S) are
opened and shorted to SG by this movement.
The combination of these short (= low level) and open (= high level) can determine the width of the orig-
inal.
Sizes detectable in combination of these open and short of the signals are as follows:
TWID2S
(Orange)
TWID1S
(Yellow)
TWID0S
(Gray)
Original width size
Original width size
(A4 series)
A3 / A4
(LT series)
LD / LT
H
H
H
L
L
L
H
H
L
H
H
L
H
L
H
H
L
-
B5-R
A5-R
A3 / A4
ST-R
LD / LT
-
Postcard
A4-R / FOLIO
B4 / B5
H
L
8.5x8.5 / LT-R / KLG / 13”LG
COMPUTER
L
L
H (= high level): Open
L (= low level): Short
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3.3 FLOW CHART
Power ON
Standby
YES
ADF jam access
cover OPEN?
NO
3
NO
All sensors OFF?
YES
Jam
NO
Empty sensor ON?
YES
NO
NO
Feed request
signal received?
Standby
YES
Original on
feeding tray?
Jam
YES
D
Pickup solenoid ON,
pickup roller goes down.
Feed motor rotates forward.
A
Fig. 3-4
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A
NO
Original registration
sensor ON?
YES
A certain period
of time passed?
NO
Feed motor stops after
transporting for a
certain period of time.
YES
Jam
NO
A certain period
of time passed?
YES
Registration roller rotates.
(Feed motor rotates reverse.)
Read motor rotates.
Monitoring registration
sensor by parallel processing.
Feed motor stops when registration
sensor detects trailing edge of
Paper transprted
before the intermideate
transport roller?
NO
original. Skip to
.
D
YES
Feed motor rotation speed switches.
First scan: Highest speed
Second scan/later: Requested speed
B
Fig. 3-5
MR-2017/2020
DESCRIPTION OF OPERATIONS
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B
NO
Original intermediate
transport sensor ON?
YES
NO
A certain period
of time passed?
3
Feed motor and read motor
stop after transporting for
certain period of time.
YES
Jam
NO
Feed request signal
received?
YES
Registration roller also rotates,
while read motor rotates
and registration sensor ON.
Transport for
a certain amount of
distance completed?
NO
YES
Scanning start signal
sent (level: High)
Exposure and scanning start.
C
Fig. 3-6
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C
NO
Original exit
sensor ON?
YES
NO
A certain period
of time passed?
NO
YES
Jam
Read sensor OFF?
YES
NO
A certain period
of time passed?
YES
Scanning start signal
sent (level: Low)
Scanning completed.
Original exit
sensor OFF?
NO
YES
NO
A certain period
of time passed?
Transport for
a certain amount of
distance completed?
NO
YES
Jam
YES
Read motor stops.
END
Fig. 3-7
MR-2017/2020
DESCRIPTION OF OPERATIONS
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3.4 DESCRIPTION OF CIRCUIT
3.4.1
Drive Circuit for Feed Motor
3
Fig. 3-8
This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor cur-
rent of the feed motor.
A drive clock signal (FMOT-CLK) and rotation direction signal (FMOT-CW/CCW) are input to control the
speed and direction of the motor rotation.
When the level of the enabling signal (FMOT-Enable) is set to "L", motor current is turned OFF regard-
less of the state of other signals.
For the excitation mode, either of 2 phase excitation or 1-2 phase excitation can be selected using the
excitation switching signal (FMOT-Mode1/FMOT-Mode2).
The edge switching signal (FMOT-Mode3) is used to specify the switching timing for excitation phase
either from when both the rise and decay edge of the CLK input are detected or when only the rising
edge is detected.
Motor current value can be set discretionary by changing the level of the reference setting signal
(FMOT-REF).
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3.4.2
Drive Circuit for Read Motor
Fig. 3-9
This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor cur-
rent of the read motor.
A drive clock signal (RMOT-CLK) and rotation direction signal (RMOT-CW/CCW) are input to control
the speed and direction of the motor rotation.
When the level of the enabling signal (RMOT-Enable) is set to "L", motor current is turned to OFF
regardless of the state of other signals.
For the excitation mode, either of 2 phase excitation, 1-2 phase excitation, W1-2 phase excitation,
2W1-2 phase excitation or the 4W1-2 phase excitation can be selected using the excitation switching
signal (RMOT-Mode1/RMOT-Mode2).
The edge switching signal (RMOT-Mode3) is used to specify the switching timing for excitation phase
either from when both the rise and decay edge of the CLK input are detected or when only the rising
edge is detected.
Motor current value can be set discretionary by changing the level of the reference setting signal
(RMOT-REF).
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3.4.3
Reset Circuit
Fig. 3-10
3
This circuit generates a reset signal when the power is turned ON and the power voltage is blocked or
cut off/lowered temporarily.
At the power-ON, the circuit shifts the level of the reset signal from “L” to “H” to put the CPU in a opera-
tive state after the reset pulse duration (Tpd) determined by the capacitance of C58 has passed from
when the power voltage has reached the supervisory voltage (Vs) divided by R116 and R117.
When a power voltage drop (cutoff, temporary cutoff, temporary low voltage) occurs and the power volt-
age becomes lower than the set value for the supervisory voltage for the power, the circuit sets the level
of the reset signal (RESET) to “L” to put the CPU in a halt state.
3.4.4
Drive Circuit for Pickup Solenoid
Fig. 3-11
Pick up solenoid is a two-way solenoid that can be operated both in suction and recovery, and driven by
two transistors (Q4 and Q2) for each operation respectively.
When the PSOL-ON-Signal level is set to “L”, Q4 is turned ON, the power of 24V is applied to the coil
for suction operation, the solenoid is turned ON, and then the pickup roller goes down.
When the PSOL-ON-Signal level is set to “L”, Q2 is turned ON, the power of 24V is applied to the coil
for recovery operation, the solenoid is turned OFF, and then the pickup roller goes up.
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4. DISASSEMBLY AND ASSEMBLY
4.1 Cover
[A] Front cover
(1) Open the RADF and remove 3 screws.
4
Fig. 4-1
(2) Close the RADF.
(3) Open the jam access cover and remove 2
screws.
Fig. 4-2
(4) Take off the front cover toward you.
Front cover
Fig. 4-3
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[B] Rear cover
(1) Open the jam access cover and remove 4
screws.
Fig. 4-4
(2) Raise the original tray and take off the rear
cover upward.
Rear cover
Fig. 4-5
[C] Jam access cover
(1) Take off the front cover.
(
(2) Take off the rear cover.
P. 4-2 "[B] Rear cover")
Pin
Dial
(
(3) Remove 1 clip and then the dial and pin.
Clip
Fig. 4-6
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(4) Remove 1 screw and the hinge pin.
Hinge pin
Fig. 4-7
(5) Take off the jam access cover by sliding it.
Jam access cover
4
Fig. 4-8
[D] Left cover
(1) Remove 2 screws and take off the left cover.
Left cover
Fig. 4-9
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[E] Original tray
(1) Take off the front cover.
(
(2) Take off the rear cover.
(3) Take off the paper feeder unit.
P. 4-5 "[A] Paper feeder unit")
(
(
(4) Remove 2 screws. Lift up the feeder upper
guide by sliding it to the right.
Note:
Do not pull the harness too strong.
Feeder upper guide
Fig. 4-10
(5) Disconnect 1 connector from the ADF control
PC board.
Fig. 4-11
(6) Remove 1 screw and take off the bushing.
(7) Take off the original tray.
Original tray
Bushing
Screw
Fig. 4-12
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4.2 Roller
[A] Paper feeder unit
(1) Open the jam access cover.
(2) Remove 2 screws and take off the bracket.
Bracket
Fig. 4-13
4
(3) Remove 1 clip and slide 2 bushings.
Clip
Bushing
Fig. 4-14
(4) Take off the paper feeder unit.
Paper feeder unit
Fig. 4-15
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[B] Pickup roller [PM]
(1) Take off the paper feeder unit.
(
P. 4-5 "[A] Paper feeder unit")
Shaft
Pin
(2) Remove 1 clip and pull out the shaft. Take off
the pickup roller.
Clip
Pickup roller
Fig. 4-16
Notes:
1. Be careful not to drop the pin because it
will come off when the shaft is pulled out.
2. Make sure you assemble the pickup roller
with the one-way clutch in the correct
direction.
Lock
Lock
Fig. 4-17
[C] Feed roller [PM]
(1) Take off the paper feeder unit.
(
P. 4-5 "[A] Paper feeder unit")
(2) Remove 1 clip.
Clip
Fig. 4-18
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(3) Slide the pulley and remove 1 pin.
Pin
Pulley
Fig. 4-19
Fig. 4-20
Fig. 4-21
(4) Pull out the shaft and take off the feed roller.
Feed roller
4
Shaft
Note:
Make sure you assemble the feed roller with
the one-way clutch in the correct direction.
Lock
Lock
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[D] Separation roller [PM]
(1) Take off the paper feeder unit.
(
P. 4-5 "[A] Paper feeder unit")
(2) Remove 2 screws. Slide the feeder upper
guide to the right and raise it.
Note:
Do not pull the harness out with too much
force.
Feeder upper guide
Fig. 4-22
(3) Remove 2 screws and take off the separation
roller holder and separation roller unit.
Separation roller unit
Separation roller holder
Fig. 4-23
(4) Remove 1 bushing and clip, and then take off
the separation roller.
Separation roller
Bushing
Clip
Fig. 4-24
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[E] Feeder lower guide
(1) Take off the original tray.
(
(2) Take off the paper feeder unit.
P. 4-5 "[A] Paper feeder unit")
(3) Remove 2 screws and take off the stay.
Stay
(
Fig. 4-25
Fig. 4-26
Fig. 4-27
(4) Take off the jam access guide.
4
Jam access guide
(5) Remove 4 screws. Disconnect 1 connector
and take off the feeder lower guide.
Feeder lower guide
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[F] Registration roller
(1) Take off the feeder lower guide.
Bushing
Pulley
Registration roller
(
(2) Take off the original feed motor drive section.
P. 4-16 "[A] Original feed motor (M1)")
E-ring
Bushing
(
(3) Remove 1 E-ring and 1 bushing from the
front side of the registration roller shaft. Also,
remove 1 bushing, 1 pulley, 1 E-ring and 1
bushing from the rear side of the shaft, and
then take off the registration roller.
Bushing
E-ring
Fig. 4-28
[G] Exit roller
(1) Take off the front cover.
(
P. 4-17 "[B] Original feed motor drive
(
section")
(3) Remove 1 screw, 1 leaf spring, 1 clip and 1
bushing from the rear side of the exit roller
shaft.
Clip
Leaf spring
Bushing
Fig. 4-29
(4) Remove 1 clip, 1 pulley, 1 pin, timing belt and
1 bushing from the front side of the exit/
reverse roller shaft.
Clip
Bushing
Pulley
Pin
Timing belt
Fig. 4-30
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(5) Take off the jam access guide.
(6) Pull out the exit guide.
(7) Take off the exit roller.
Jam access guide
Fig. 4-31
Exit guide
4
Fig. 4-32
Exit roller
Fig. 4-33
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[H] Pre-reading guide
(1) Take off the front cover.
(
(2) Take off the rear cover.
(3) Take off the jam access cover.
(4) Take off the left cover.
P. 4-3 "[D] Left cover")
Hinge pin
(
(
(
(5) Remove 1 screw and take off the hinge pin.
Fig. 4-34
(6) Disconnect 1 connector. Remove 2 screws
and take off the pre-reading guide.
Pre-reading guide
Fig. 4-35
[I] Intermediate transport roller
(1) Take off the pre-reading guide.
Screw
Bushing
(
(2) Take off the read motor drive section.
P. 4-18 "[C] Read motor (M2)")
(
Bushing
Pulley
(3) Remove 1 bushing, 1 screw, 1 pulley and 1
bushing from the rear side of the intermedi-
ate transport roller shaft.
(4) Remove 1 bushing from the front side of the
intermediate transport roller shaft.
(5) Take off the intermediate transport roller.
Intermediate transport roller
Bushing
Fig. 4-36
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[J] Pre-reading roller
(1) Take off the pre-reading guide.
(
(2) Take off the read motor drive section.
P. 4-18 "[C] Read motor (M2)")
(
(3) Remove 1 bushing, 1 screw, 1 pulley and 1
bearing from the rear side of the pre-reading
roller shaft.
Screw
Bearing
Bushing
Pulley
Fig. 4-37
(4) Remove 1 clip and 1 bushing from the front
side of the pre-reading roller shaft.
4
(5) Take off the pre-reading roller.
Pre-reading roller
Clip
Bushing
Fig. 4-38
[K] Post-reading roller
(1) Take off the pre-reading guide.
(
P. 4-12 "[H] Pre-reading guide")
Connector
(2) Disconnect 1 connector.
Fig. 4-39
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(3) Take off the read motor drive section.
P. 4-19 "[D] Read motor drive section")
Flange
Bearing
(
(4) Remove 1 bushing, 1 E-ring and 1 pulley
from the rear side of the post-reading roller
shaft. Loosen 2 setscrews and take off 1
flange. Take off 1 bearing.
Pulley
Bushing
E-ring
Fig. 4-40
(5) Remove 1 clip, timing belt, 1 pulley, 1pin, 1
E-ring and 1 bushing from the front side of
the post-reading roller shaft.
Pin
E-ring
Pulley
Timing belt
Bushing
Clip
Fig. 4-41
(6) Open the RADF. Remove 4 screws, take off
2 holders and platen guide.
Holder
Platen guide
Holder
Fig. 4-42
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(7) Remove 2 screws. Open the post-reading
lower guide and take off the post-reading
upper guide.
Post-reading
upper guide
Fig. 4-43
(8) Take off the post-reading roller.
4
Post-reading roller
Fig. 4-44
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4.3 Motor / Motor drive section
[A] Original feed motor (M1)
(1) Take off the rear cover.
(
P. 4-2 "[B] Rear cover")
Connector
(2) Disconnect 1 connector, and then remove 1
spring. (Spring: Outside diameter of coil –
ø9.6 mm, acceptable turns of coil – 12 turns)
Spring
Fig. 4-45
(3) Remove 3 screws, and then take off the orig-
inal feed motor with its bracket.
Note:
When the unit is being assembled, tempo-
rarily tighten the screws removed at step (3)
and then attach the spring removed at step
(2). Then fully tighten these screws.
Original feed motor
Fig. 4-46
(4) Remove 2 screws and take off the original
feed motor.
Original feed motor
Fig. 4-47
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[B] Original feed motor drive section
(1) Take off the the original feed motor.
Harness clamp
Harness clamp
(
P. 4-16 "[A] Original feed motor (M1)")
(2) Release the harness from 3 harness clamps.
(3) Remove 1 E-ring and take off the bushing.
E-ring
Bushing
Fig. 4-48
(4) Disconnect 3 terminals of the switch.
(5) Remove 4 screws, and then take off the
bracket.
4
Bracket
Note:
White
Red
Black
When connecting the terminal, make sure
that the color of the harness is correct.
Fig. 4-49
(6) Take off the timing belt, bushings and 2 pul-
leys.
Pulley
Bushing
Timing belt
Fig. 4-50
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[C] Read motor (M2)
(1) Take off the rear cover.
Connector
(
P. 4-2 "[B] Rear cover")
(2) Disconnect 1 connector, and then remove 1
spring. (Spring: Outside diameter of coil –
ø10.2 mm, active coils – 12.5)
Spring
Fig. 4-51
(3) Remove 3 screws, and then take off the read
motor with its bracket.
Read motor
Note:
When the unit is being assembled, tempo-
rarily tighten the screws removed at step (3),
and then attach the spring removed at step
(2). Then fully tighten these screws.
Fig. 4-52
(4) Remove 2 screws and take off the read
motor.
Read motor
Fig. 4-53
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[D] Read motor drive section
(1) Take off the rear motor.
(
P. 4-18 "[C] Read motor (M2)")
Spring
Harness clamp
(2) Remove 1 spring. (Spring: Outside diameter
of coil –ø8.8 mm, active coils – 12.5)
(3) Release the harness from 2 harness clamps.
Harness clamp
Fig. 4-54
(4) Remove 3 screws and then take off the
bracket.
4
Bracket
Fig. 4-55
(5) Take off 1 timing belt and 4 bushings.
Timing belt
Bushing
Bushing
Fig. 4-56
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(6) Loosen 1 screw of the belt tensioner.
(7) Remove the 4 E-rings, and then take off the
4 pulleys and timing belt.
Screw
Tensioner
Note:
When the unit is being assembled, first install
the parts removed at steps (3), (4), (5) and
(7), and attach the spring removed at step (2)
next. Then tighten the screw loosened at
step (6).
Timing belt
E-ring
Fig. 4-57
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4.4 Solenoid
[A] Original pickup solenoid (SOL)
(
P. 4-17 "[B] Original feed motor drive
section")
(2) Disconnect 1 connector. Remove 2 screws
and take off the original pickup solenoid with
the bracket.
Connector
Original pickup solenoid
Fig. 4-58
4
(3) Remove 2 screws and take off the original
pickup solenoid from the bracket.
Original pickup solenoid
Bracket
Fig. 4-59
Note:
When installing the original pickup solenoid,
be sure to align the edge of the original
pickup solenoid with the mark-off line on the
frame.
Mark-off line
Fig. 4-60
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4.5 Sensor/switch
[A] Original tray width sensor (S2)
(1) Take off the original tray.
(
P. 4-4 "[E] Original tray")
(2) Remove 3 screws. Release 8 latches and
separate the original tray into 2 parts.
Fig. 4-61
(3) Remove 1 screw and take off the cover.
(4) Disconnect 1 connector and take off the orig-
inal tray width sensor.
Cover
Connector
Original tray
width sensor
Fig. 4-62
Note:
If washers (3 pcs) and a pinion come off,
assemble them in the order as shown in the
illustration.
(
)
)
Washer Black: t= 0.25
(
Washer Gold
)
(
Washer Black: t= 0.13
Pinion
Fig. 4-63
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[B] Original tray sensor (S1)
(1) Take off the original tray.
(
P. 4-4 "[E] Original tray")
(2) Remove 3 screws. Release 8 latches and
separate the original tray into 2 parts.
Fig. 4-64
(3) Remove 2 screws and take off the holder.
4
Holder
Fig. 4-65
(4) Release 2 latches and take off the original
tray sensor.
Original tray sensor
Fig. 4-66
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[C] Jam access cover sensor (S7)
(1) Open the jam access cover.
(2) Remove 1 screw and take off the metal plate
cover.
Metal plate cover
Fig. 4-67
(3) Disconnect 1 connector. Release 2 latches
and take off the jam access cover sensor.
Jam access cover sensor
Fig. 4-68
[D] Original empty sensor (S3)
(1) Open the jam access cover.
(2) Remove 1 screw and take off the metal plate
cover.
Metal plate cover
Fig. 4-69
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(3) Remove 2 screws and take off the bracket.
Bracket
Fig. 4-70
(4) Disconnect 1 connector. Release 2 latches
and take off the original empty sensor.
4
Original empty sensor
Fig. 4-71
[E] Original registration sensor (S4)
(1) Take off the feeder lower guide.
Original registration sensor
(
P. 4-9 "[E] Feeder lower guide")
(2) Disconnect 1 connector. Release 2 latches
and take off the original registration sensor.
Fig. 4-72
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[F] Read sensor (S5)
(1) Take off the pre-reading guide.
(
P. 4-12 "[H] Pre-reading guide")
Read sensor
(2) Release 2 latches and take off the read sen-
sor from the pre-reading upper guide.
Fig. 4-73
[G] Original exit/reverse sensor (S6)
(1) Take off the pre-reading guide.
(
P. 4-12 "[H] Pre-reading guide")
Connector
(2) Disconnect 1 connector.
Fig. 4-74
(3) Open the ADF. Remove 4 screws, and then
take off 2 holders and platen guide.
Holder
Platen guide
Holder
Fig. 4-75
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(4) Remove 2 screws. Open the post-reading
lower guide and take off the post-reading
upper guide.
Post-reading
upper guide
Fig. 4-76
(5) Release 2 latches and take off the Original
exit sensor from the post-reading upper
guide.
Original exit sensor
4
Fig. 4-77
[H] ADF opening/closing sensor (S8)
(1) Take off the rear cover.
(
P. 4-2 "[B] Rear cover")
(2) Disconnect 1 connector. Release 2 latches
and take off the ADF opening/closing sensor.
RADF opening/closing sensor
Fig. 4-78
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[I] Jam access cover opening/closing switch (SW)
Jam access cover opening/closing
switch
Bracket
(
P. 4-17 "[B] Original feed motor drive
section")
White
Red
(2) Disconnect 3 terminals. Remove 1 screw
and take off the jam access cover opening/
closing switch.
Black
Note:
When connecting the terminal, make sure
that the color of the harness is correct.
Fig. 4-79
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4.6 PC Board
[A] ADF control PC board (ADF board)
(1) Take off the rear cover.
(
P. 4-2 "[B] Rear cover")
(2) Disconnect 9 connectors.
Fig. 4-80
4
(3) Release 2 lock supports and 3 edge spacer.
Take off the ADF board.
ADF board
Fig. 4-81
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4.7 Others
[A] Hinge stopper
(1) Remove 1 screw and then take off the hinge
stopper.
Hinge stopper
Fig. 4-82
Note:
When the hinge stopper is taken off, the
opening angle for the RADF becomes
approx. 90 degrees. Take off the hinge stop-
per only when it is needed for installation,
maintenance service, etc.
Fig. 4-83
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5. ADJUSTMENT
5.1 Adjustment of Position
Perform this adjustment when the ADF is not installed in the correct position.
Note:
Check if the image adjustment for the equipment is performed properly before this adjustment of
the ADF. (See the Service Handbook of the applicable equipment.)
[A] Checking
(1) Open the ADF and install 2 positioning pins
(the positioning pins are installed to the back
side of the hinge which is on the left side of
the ADF).
5
Fig. 5-1
(2) Remove the platen sheet.
Fig. 5-2
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(3) Close the ADF and check if the positioning
pins fit the holes on the ADF.
Fig. 5-3
[B] Adjustment
If the pins cannot be fitted into the holes, perform the adjustment according to the following procedure.
(1) Remove the right-hand hinge screw at the
rear side.
Fig. 5-4
(2) Remove the bracket on the left-hand hinge.
(MR-2020 only)
Fig. 5-5
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(3) Loosen the left-hand hinge screw at the rear
side.
Fig. 5-6
Fig. 5-7
Fig. 5-8
(4) Loosen the hinge screws at the front side.
5
(5) Position the pins with the holes on the ADF
by moving it so that the pins fit into the holes
when the ADF is closed.
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(6) Tighten the left-hand hinge screw at the rear
side.
Fig. 5-9
(7) Loosen the hole position adjustment screws
on the right hand side.
Fig. 5-10
(8) Match the screw hole positions.
Fig. 5-11
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(9) Install the right-hand hinge screw at the rear
side.
Fig. 5-12
Fig. 5-13
Fig. 5-14
(10) Install the bracket on the left-hand hinge.
(MR-2020 only)
5
(11) Tighten the hinge screws at the front side.
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(12) Place the platen sheet on the original glass
and align it to the top left corner.
Close the ADF gently and open it to check if
the platen sheet is attached properly.
Fig. 5-15
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5.2 Adjustment of Height
Note:
Check if the image adjustment for the equipment is performed properly before this adjustment of
the ADF. (See the Service Handbook of the applicable equipment.)
[A] Checking
(1) Close the ADF.
(2) Light the exposure lamp.
•
•
•
Turn the power ON while pressing [0] and [4] simultaneously.
Key in [261], press the [START] button, and then wait until the CIS unit stops.
Key in [267] and then press the [START] button. The exposure lamp is turned ON for a given
length of time.
(3) Visually check the gap between platen guide holder "A" and upper surface of the original glass
"B" from the left hand side of the equipment. If the value is not within the tolerance, perform the
adjustment according to the following procedure.
[Tolerance of the gap]
Rear side: 0 - 0.2 mm
Front side: 0 mm
5
A
B
A
B
Fig. 5-16
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[B] Adjustment
(1) Close the ADF.
(2) Adjust it by turning the adjustment screws on the hinges.
•
Adjust the height on the rear side by means of the screw on the hinge on the feed side of the
ADF.
Turn it clockwise ................. Heightened
Turn it counterclockwise ...... Lowered
Fig. 5-17
•
Adjust the gap on the rear side by means of the screw on the hinge on the feed side of the
ADF.
Turn it clockwis .................... Lowered
Turn it counterclockwise ...... Heightened
Fig. 5-18
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5.3 Adjustment of Skew
Note:
Check if the image adjustment for the equipment is performed properly before this adjustment of
the RADF. (See the Service Handbook of applicable equipment.) Also, the RADF position and
height shall be adjusted properly.
[A] Checking
Check the image using the chart (original) with vertical and horizontal lines in the following procedure.
Fig. 5-19 Chart (Original)
5
(1) Place the chart provided as an original with its face up on the original tray of the ADF, select [1
Sided -> 1 Sided] and press the [START] button.
(2) Superimpose the chart on the copy and check the inclination of the copy image.
[B] Adjustment
(1) Shift the aligning plate with the scale as the guide shown in the figure below to adjust the skew.
Fig. 5-20
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(2) If the image skew is "C" as shown in the figure below, shift the aligning plate in the direction of
"+", and if "D", shift it to "-".
C
D
Fig. 5-21
Fig. 5-22
Shift the aligning plate in the direction of "+".
Shift the aligning plate in the direction of "-".
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5.4 Adjustment of the Leading Edge Position
Note:
Check if the image adjustment for the equipment is performed properly before this adjustment of
the ADF. (See the Service Handbook of applicable equipment.) Also, the ADF position and height
shall be adjusted properly.
[A] Checking
Check the image using the chart (original) with vertical and horizontal lines in the following procedure.
(1) Place the chart provided as an original with its face up on the original tray of the ADF, select [1
Sided -> 1 Sided] and press the [START] button.
(2) Superimpose the chart on the copy and check the leading edge E of the chart and F of the copy.
F
E
5
Fig. 5-23 Chart (Original)
Fig. 5-24 Copy
[B] Adjustment
(1) Turn the power ON while pressing [0] and [5] simultaneously, key in [365] and then press the
[START] button.
(2) Enter the value.
•
If the leading edge (F) margin of the copy image is larger than the (E) margin of the chart,
enter a value smaller than the current one.
Note:
Changing one value shifts the copy image by 0.2 mm.
•
If the leading edge (F) margin of the copy image is smaller than the (E) margin of the chart,
enter a value larger than the current one.
Note:
Changing one value shifts the copy image by 0.2 mm.
(3) Press the [INTERRUPT] button.
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ADJUSTMENT
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5.5 Adjustment of Horizontal Position
Note:
Check if the image adjustment for the equipment is performed properly before this adjustment of
the ADF. (See the Service Handbook of applicable equipment.) Also, the ADF position and height
shall be adjusted properly.
[A] Checking
Check the image using the chart (original) with a center line in the following procedure.
(1) Place the chart provided as an original with its face up on the original tray of the ADF.
(2) Press the [START] button.
(3) Fold the copy in half and check if the center line is misaligned.
[B] Adjustment
(1) Turn the power ON while pressing [0] and [5] simultaneously.
(2) Key in [358] and then press the [START] button.
•
If the center line of the copy image is shifted to the front side of the equipment, enter a value
larger than the current one.
Note:
Changing one value shifts the copy image by 0.042 mm.
G
Fig. 5-25
•
If the center line of the copy image is shifted to the rear side of the equipment, enter a value
smaller than the current one.
Note:
Changing one value shifts the copy image by 0.042 mm.
H
Fig. 5-26
(3) Press the [INTERRUPT] button.
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5.6 Adjustment of Copy Ratio
Note:
Check if the image adjustment for the equipment is performed properly before this adjustment of
the ADF. (See the Service Handbook of applicable equipment.) Also, the ADF position and height
shall be adjusted properly.
[A] Checking
Check the image using the chart (original) with vertical and horizontal lines in the following procedure.
(1) Place the chart provided as an original with its face up on the original tray of the ADF.
(2) Press the [START] button.
(3) Superimpose the chart on the copy and check the image dimension “I”.
[B] Adjustment
(1) Turn the power ON while pressing [0] and [5] simultaneously.
(2) Key in [357] and then press the [START] button.
•
If the copy image dimension “I” is larger than the chart dimension, enter a value smaller than
the current one.
•
If the copy image dimension “I” is smaller than the chart dimension, enter a value larger than
the current one.
5
I
Fig. 5-27
(3) Press the [INTERRUPT] button.
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ADJUSTMENT
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5.7 Adjustment of ADF Opening/Closing Sensor
Adjust the bracket position so that the sensor is turned ON when the height “A” becomes 100 mm or
less (within the empty weight falling limit).
Fig. 5-28
Fig. 5-29
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ADJUSTMENT
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6. TROUBLESHOOTING
6.1 Troubleshooting for Mechanical Errors
1) Multiple originals are transported simultaneously
Original abnormally curled or folded?
YES→ Flatten the original and set it again
↓
NO
Separation roller is dirty?
↓
NO
YES→ Clean the roller with alcohol
Replace the separation rollers with new ones
2) Original is not transported to registration roller
Original thicker than specified?
YES→ Use originals with permissible thickness.
⎟
↓
NO
Place thick originals manually on the platen cover to make a copy
Pickup roller and feed roller are dirty?
↓
NO
YES→ Clean the rollers with alcohol
Transport power of pickup roller and feed roller is weak?
↓
YES
Replace the rollers with new ones
3) Leading edge of original is skewed
Front and rear protrusions at bottom of ADF are out of contact with glass?
YES→ Adjust the height of the left hinge
↓
NO
6
Transport rollers are dirty?
↓
NO
YES→ Clean the rollers with alcohol
Is the right hinge out of place?
↓
YES
Make a copy and adjust the position of the hinge
4) Edges of original and copied image are not aligned
Width between slides too wide compared to that of original?
YES→ Move the slides so that they contact the edges of the original
↓
NO
Check the scanner adjustment
5) Black streaks appear on copied image
ADF original glass is dirty?
YES→ Clean the glass with a dry/squeezed cloth
↓
NO
Check the scanner unit
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6.2 Troubleshooting for Electrical Errors
1) ADF does not work (except in the case of a paper jam or when the cover is open)
Interface harness connected properly?
NO→ Connect the harness properly or replace it
↓
YES
DC+5V supplied to CN70-2, 3pin?
↓
YES
NO→ Connect the harness properly or replace it
DC+24V supplied to CN70-6, 7pin?
↓
YES
NO→ Connect the harness properly or replace it
DC+24V supplied to CN72-4pin?
↓
YES
NO→ Check or replace the jam access cover switch
Empty sensor is ON when there is paper?
↓
YES
NO→ Check or replace the empty sensor
Check or replace the ADF board
2) Abnormality of motor
Power supplied and drives signals to connector of motor?
NO→ Check or replace motor
↓
YES
There is no mechanical overloading at the motor and the drive system is correct? (Belt tension etc.)
↓
YES
NO→ Check or replace motor harness
Check or replace the RADF board
3) Communication error
Interface cable normal?
NO→ Replace the interface cable
↓
YES
Check or replace the ADF board and check the equipment
4) Size detection error
Is the sensor harness normal, and is it connected to the connector (CN73) properly?
↓
YES
NO→ Connect the harness to the connector properly or replace it.
Are the original tray width sensor and original tray sensor normal?
↓
YES
NO→ Check the original tray width sensor and original tray sensor or replace them.
Check the ADF board or replace it.
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6.3 Jam
Jam not reaching the original registration sensor
1) Clean the pickup roller, feed roller and separation roller if they are stained.
2) Flatten the original if it is folded or excessively curled and place it again.
3) Is the original registration sensor working? (Perform the input check)
*
If it is working properly, proceed to 7. If not, check 4 to 6.
4) Check if the connector CN74 on the RADF board is disconnected from the original registration
sensor or the harnesses are open circuited. Correct if any.
5) Replace the original registration sensor.
6) Replace the RADF board.
7) Is the original pickup solenoid working?
*
If it is working properly, proceed to 12. If not, check 8 to 11.
8) Check if the solenoid is installed at the center of the scale. (The scale is longer in the center.)
9) If it is not, correct the position, aligning with the center of the scale.
10)Check if the connector CN79 on the RADF board is disconnected from the original pickup sole-
noid or the harnesses are open circuited. Correct if any.
11)Replace the original pickup solenoid.
12)Replace the RADF board.
13)Replace the pickup roller, feed roller and separation roller if they are worn out.
Feed signal reception jam
1) Is the empty sensor working? (Perform the input check)
2) Check if the lever of empty sensor is working normally.
3) Check if the connector CN75 on the RADF board is disconnected from the empty sensor or the
harnesses are open circuited. Correct if any.
4) Replace the empty sensor.
5) Replace the RADF board.
6
Jam not reaching the read sensor
1) Clean the registration roller and the read roller if they are stained.
2) Is the read sensor working? (Perform the input check)
*
If it is working properly, proceed to 6. If not, check 3 to 5 below.
3) Check if the connector CN75 on the RADF board is disconnected from the read sensor or the
harnesses are open circuited. Correct if any.
4) Replace the read sensor.
5) Replace the RADF board.
6) Replace the registration roller and the read roller if they are worn out.
Jam not reaching the exit sensor (during scanning)
1) Clean the read roller if it is stained.
2) Is the original exit sensor working? (Perform the input check)
*
If it is working properly, proceed to 6. If not, check 3 to 5 below.
3) Check if the connector CN75 on the RADF board is disconnected from the original exit sensor or
the harnesses are open circuited. Correct if any.
4) Replace the original exit sensor
5) Replace the RADF board.
6) Replace the read roller if it is worn out.
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Stop jam at the registration sensor
1) Clean the registration roller if it is stained.
2) Is the registration sensor working? (Perform the input check)
*
If it is working properly, proceed to 6. If not, check 3 to 5 below.
3) Check if the connector CN74 on the RADF board is disconnected from the registration sensor or
the harnesses are open circuited. Correct if any.
4) Replace the registration sensor.
5) Replace the RADF board.
6) Replace the registration roller if it is worn out.
Stop jam at the read sensor
1) Clean the read roller if it is stained.
2) Is the read sensor working? (Perform the input check)
*
If it is working properly, proceed to 6. If not, check 3 to 5 below.
3) Check if the connector CN75 on the RADF board is disconnected from the read sensor or the
harnesses are open circuited. Correct if any.
4) Replace the read sensor.
5) Replace the RADF board.
6) Replace the read roller if it is worn out.
Stop jam at the exit sensor
1) Clean the exit roller if it is stained.
2) Is the original exit/reverse sensor working? (Perform the input check)
*
If it is working properly, proceed to 6. If not, check 3 to 5 below.
3) Check if the connector CN4 on the RADF board is disconnected from the original exit/reverse
sensor or the harnesses are open circuited. Correct if any.
4) Replace the original exit/reverse sensor.
5) Replace the RADF board.
6) Replace the exit roller if it is worn out.
RADF jam access cover open
1) Close the RADF jam access cover if it is opened. Remove if there is any original before closing it.
2) Is the RADF jam access cover switch working? (Perform the input check)
*
If it is working properly, proceed to 6. If not, check 3 to 5 below.
3) Check if the connector CN72 on the RADF board is disconnected from the RADF jam access
cove ropening/closing switch or the harnesses are open circuited. Correct if any.
4) Replace the RADF jam access cover opening/closing switch.
5) Replace the RADF board.
RADF open jam
1) Close the RADF if it is opened. Remove if there is any original before closing it.
2) Is the RADF opening/closing sensor working? (Perform the input check)
*
If it is working properly, proceed to 6. If not, check 3 to 5 below.
3) Check if the connector CN75 on the RADF board is disconnected from the RADF opening/clos-
ing sensor or the harnesses are open circuited. Correct if any.
4) Replace the RADF opening/closing sensor.
5) Replace the RADF board.
6) Is the RADF opening/closing sensor adjusted within the specified range?
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Cover open jam in the read ready status
1) Close the RADF jam access cover or the front cover if they are opened in the read ready status.
2) IIs the RADF jam access cover sensor working? (Perform the input check)
3) Check if the connector CN75 on the RADF board is disconnected from the RADF jam access
cover sensor or the harnesses are open circuited. Correct if any.
4) Replace the RADF jam access cover sensor.
5) Replace the RADF board.
6
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7. MAINTENANCE AND REWRITING ROM
7.1 Periodic Maintenance
4
3
2
1
5
9
6
7
8
Fig. 7-1
Symbols used in the checklist
Cleaning
Lubrication/Coating
Replacement
Operation check
A: Clean with alcohol
B: Clean with soft pad,
L: Launa 40
SI: Silicon oil
The number of sheets con-
sumed before replacement
(Value x 1,000).
O: After cleaning or
replacement, confirm
there is no problem
cloth or vacuum cleaner W: White grease
(Molykote X5-6020) R: Replace if deformed or
AV:Alvania No.2 damaged
Preventive Maintenance Checklist
Note:
Page-Item (P-I) is described in the column of the Parts list.
Lubrica-
tion/
Coating
Replace-
ment
(x1,000)
Operation Parts list
Item to check
Pickup roller
Cleaning
Remarks
check
(P-I)
7
1
2
3
4
5
6
7
8
9
A
90
90
90
5-1
4-10
5-1
Separation roller
Feed roller
A
A
Registration roller
Intermediate transfer roller
Front read roller
Rear read roller
Exit/reverse roller
Platen sheet
A
A
A
A
A
B or A
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MAINTENANCE AND REWRITING ROM
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7.2 Rewriting ROM (Firmware Updating)
It is feasible to update the firmware automatically by connecting the download jig to the PC board and
turning the power of the equipment ON. The download jig K-PWA-DLM-320 is used.
< Procedure >
(1) Turning OFF the power of the equipment and take off the ADF rear cover.
(2) Connect the download jig with the connector (CN81) on the PC board.
(3) While pressing [0] and [8] simultaneously, turn ON the power. (rewriting data starts)
(4) During the data is rewritten, the LED on the download jig lights. When the data rewriting is com-
pleted, the LED blinks slowly (at an interval of 0.8 sec.). If the LED blinks fast (at an interval of
0.1 sec.), the rewriting has been failed.
(5) Turn OFF the power of the equipment and remove the download jig.
(6) Install the ADF rear cover.
*
If rewriting data is failed, turn OFF the power and repeat the procedure.
Connector
Fig. 7-2
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8
Fig. 8-4
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8
Fig. 8-6
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CIRCUIT DIAGRAM / HARNESS DIAGRAM
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Fig. 8-7
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8
Fig. 8-8
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CIRCUIT DIAGRAM / HARNESS DIAGRAM
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Fig. 8-9
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8
Fig. 8-10
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CIRCUIT DIAGRAM / HARNESS DIAGRAM
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