Toshiba MR-2020, MR-2017 User Manual

SERVICE MANUAL

AUTOMATIC DOCUMENT FEEDER

MR-2017/2020

Model: MR-2017/2020 Publish Date: December 2005 File No. SME050026D0 R05092196700-TTEC Ver04_2009-12

Trademarks

• The official name of Windows 95 is Microsoft Windows 95 Operating System.

• The official name of Windows 98 is Microsoft Windows 98 Operating System.

• The official name of Windows Me is Microsoft Windows Millennium Edition Operating System.

• The official name of Windows 2000 is Microsoft Windows 2000 Operating System.

• The official name of Windows XP is Microsoft Windows XP Operating System.

• Microsoft, Windows, Windows NT, Windows Vista and the brand names and product names of other Microsoft products are trademarks or registered trademarks of Microsoft Corporation in the U.S. and/or other countries.

• Molykote is a registered trademark of Dow Corning Corporation.

• Other company names and product names in this manual are the trademarks of their respective companies.

Under the copyright laws, this manual cannot be reproduced in any form without prior written permission of TOSHIBA TEC CORPORATION. No patent liability is assumed, however, with respect to the use of the information contained herein.

07/06

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 sections 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, harnesses 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, follow 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.

09/12

1. SPECIFICATION

Item MR-2017 MR-2020

Maximum number of originals on the original feeding tray

Acceptable paper size A5-R, A4, A4-R, B5, B5-R, B4, A3,

Acceptable paper weight

Dimensions W600 x D513 x H135 (mm)

Weight Approx 11 kg

Power consumption Approx. 30W

Power requirements DC5 V, DC24 V

Co-packed items Unpacking Instruction (1 set)

Applicable models e-STUDIO163/203

Remarks

Up to 100 sheets or 16 mm in height. * 50 - 80 g/m

FOLIO, ST-R, LT, LT-R, LG, LD, COMPUTER

50 - 127 g/m (13.3 lb. Bond - 33.8 lb. Cover)

* Excluding hinges and original tray

* Supplied from the equipment

Charts (A4/LT: 1 sheet each) Mounting screws (6 pcs) Positioning pins (2 pcs) Washer (1 pc) Hinge bracket (1 pc) Hinge bracket fixing screw(2 pcs) Hinge bracket cover (1 pc) Connector cover (1 pc)

e-STUDIO165/205 e-STUDIO166/206 e-STUDIO167/207/237

2

(13.3 - 21.3 lb. Bond)

2

1

←

W575 x D528 x H135 (mm) * Excluding original tray

← ← ←

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 fixing screw(2 pcs) Stopper bracket (1 pc) Stopper bracket fixing screw (2 pcs) Connector cover (1 pc)

e-STUDIO181/211 e-STUDIO182/212/242

1 - 1

09/12

SPECIFICATION

1 - 2

2. GENERAL DESCRIPTION

2.1 Main Components

Original tray section

Drive/Control section

Feeding/Transporting section

Fig. 2-1

Location Components

Feeding/Transporting section

Original tray section Original width guide

Original exit tray section Original exit tray

Drive/Control section Original feed motor (M1)

Pickup roller Feed roller Separation roller Registration roller Intermediate transfer roller Pre-reading roller Platen roller Post-reading roller Exit roller

Original tray

Original empty sensor (S3) Original registration sensor (S4) Read sensor (S5) Original exit sensor (S6) Jam access cover sensor (S7)

Original tray sensor (S1) Original tray width sensor (S2)

Read motor (M2) Original pickup solenoid (SOL) ADF opening/closing sensor (S8) Jam access cover opening/closing switch (SW) ADF control PC board (ADF)

2

Original exit tray section

2 - 1

06/09

GENERAL DESCRIPTION

2.2 Sectional View

R1R3R2R4

TRY2

R5

R6 R7 R8FLP

Fig. 2-2

TRY1 Original tray R4 Registration roller

TRY2 Original exit tray R5 Intermediate transfer roller

FLP Exit gate R6 Pre-reading roller

R1 Pickup roller R7 Post-reading roller

R2 Feed roller R8 Exit roller

R3 Separation roller

TRY1

2 - 2

06/09

2.3 Electric Parts Layout

SW

M2

M1

SOL

S7

ADF

Fig. 2-3

S8

S1S2

2

S3S4S5 S6

2 - 3

06/09

GENERAL DESCRIPTION

2.4 Symbols and Functions of Various Components

1) Motors

Symbol Name Function

M1 Original feed motor Drives the original feed roller, pickup roller and registration roller.

M2 Read motor 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 Detects the length of the original set on the original tray.

S2 Original tray width sensor Detects the width of the original set on the original tray.

S3 Original empty sensor Detects the original set on the original tray.

S4 Original registration sensor Detects transport of the original at the registration roller section.

S5 Read sensor Detects the leading edge of the original at the original scanning section.

S6 Original exit sensor Detects the exit (transit) of an original.

S7 Jam access cover sensor 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

3) Solenoid

Symbol Name Function

SOL Original pickup solenoid Drives up and down the original pickup roller.

Switches between cutoff and supply state of the 24 V power by opening/closing of the jam access cover.

4) PC board

Symbol Name Function

ADF ADF control PC board (ADF

board)

Controls the ADF.

2 - 4

2.5 Diagram of Signal Blocks

Equipment

RxD

TxD

REQ

ACK

DF-REQ

DF-ACK

SCAN-ST

CNT

DC 24V

DC 5V

Downlad jig

ADF

Reset IC

CPU

Driver

Original feed motor (M1

Read motor (M2

Original pickup solenoid (SOL

Original tray sensor (S1

Original tray width sensor (S2

Original empty sensor (S3

Original registration sensor (S4

Read sensor (S5

Original exit sensor (S6

Jam access cover sensor (S7

RADF opening/closing sensor (S8

Jam access cover opening/closing switch (SW

Fig. 2-4

)

2

)

2 - 5

09/12

GENERAL DESCRIPTION

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 communication 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

2 - 6

3. DESCRIPTION OF OPERATIONS

3.1 DRIVE SYSTEM

Feed motor drive section

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: picks up originals and drives the registration roller. Read motor drive section: transports originals and drives parts such as the exit roller.

3

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.

3 - 1

06/09

DESCRIPTION OF OPERATIONS

3.1.2 Original feed motor drive section

Original feed motor

Oneway clutch

Pickup roller

Feed roller

Separation roller

Pickup

Registration roller

Feed

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 direction (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.

3 - 2

3.1.3 Read motor drive section

Read motor

Exit roller

3

Pre-reading roller

Intermediate transfer roller

Post-reading 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 prereading 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.

3 - 3

06/09

DESCRIPTION OF OPERATIONS

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 original. Sizes detectable in combination of these open and short of the signals are as follows:

TWID2S

(Orange)

H H H LD / LT A3 / A4 HHL - B5-R HLH ST-R A5-R

L H H LD / LT A3 / A4 LHL - Postcard L L H 8.5x8.5 / LT-R / KLG / 13”LG A4-R / FOLIO L L L COMPUTER B4 / B5

TWID1S (Yellow)

TWID0S

(Gray)

Original width size

(LT series)

H (= high level): Open L (= low level): Short

Original width size

(A4 series)

3 - 4

06/09

3.3 FLOW CHART

Standby

Power ON

ADF jam access cover OPEN?

NO

All sensors OFF?

YES

Empty sensor ON?

YES

Feed request signal received?

YES

Original on feeding tray?

YES

3

NO

Jam

NO

Standby

NO

YES

Pickup solenoid ON, pickup roller goes down.

Feed motor rotates forward.

A

Fig. 3-4

3 - 5

Jam

D

DESCRIPTION OF OPERATIONS

A

Original registration

sensor ON?

YES

Feed motor stops after

transporting for a

certain period of time.

A certain period of time passed?

YES

Registration roller rotates.

(Feed motor rotates reverse.)

Read motor rotates.

NO

A certain period of time passed?

YES

Jam

NO

Monitoring registration sensor by parallel processing.

Paper transprted

before the intermideate

transport roller?

NO

Feed motor stops when registration sensor detects trailing edge of original. Skip to .

D

YES

Feed motor rotation speed switches. First scan: Highest speed Second scan/later: Requested speed

B

Fig. 3-5

3 - 6

B

Original intermediate transport sensor ON?

YES

Feed motor and read motor stop after transporting for certain period of time.

Feed request signal

received?

YES

Registration roller also rotates, while read motor rotates and registration sensor ON.

NO

A certain period of time passed?

YES

Jam

NO

3

Transport for

a certain amount of

distance completed?

NO

YES

Scanning start signal

sent (level: High)

Exposure and scanning start.

C

Fig. 3-6

3 - 7

DESCRIPTION OF OPERATIONS

C

Original exit

sensor ON?

NO

Read sensor OFF?

A certain period of time passed?

Scanning start signal

sent (level: Low)

Original exit

sensor OFF?

D

YES

NO

A certain period of time passed?

YES

Jam

Scanning completed.

NO

YES

A certain period

NO

of time passed?

Transport for

a certain amount of

distance completed?

YES

NO

YES

Jam

Read motor stops.

END

Fig. 3-7

3 - 8

3.4 DESCRIPTION OF CIRCUIT

3.4.1 Drive Circuit for Feed Motor

Fig. 3-8

3

This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor current 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 regardless 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).

3 - 9

DESCRIPTION OF OPERATIONS

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 current of the read motor. A drive clock signal (RMOT-CLK) and rotation direction signal (RMOT-CW/CCW 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).

) are input to control

3 - 10

3.4.3 Reset Circuit

Fig. 3-10

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 operative 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 voltage 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

3

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.

3 - 11

DESCRIPTION OF OPERATIONS

3 - 12

4. DISASSEMBLY AND ASSEMBLY

4.1 Cover

[A] Front cover

(1) Open the RADF and remove 3 screws.

(2) Close the RADF. (3) Open the jam access cover and remove 2

screws.

4

Fig. 4-1

Fig. 4-2

(4) Take off the front cover toward you.

Front cover

Fig. 4-3

4 - 1

06/09

DISASSEMBLY AND ASSEMBLY

[B] Rear cover

(1) Open the jam access cover and remove 4

screws.

(2) Raise the original tray and take off the rear

cover upward.

Fig. 4-4

Rear cover

[C] Jam access cover

(1) Take off the front cover.

( P. 4-1 "[A] Front cover")

(2) Take off the rear cover.

( P. 4-2 "[B] Rear cover")

(3) Remove 1 clip and then the dial and pin.

Fig. 4-5

DialPin

Clip

Fig. 4-6

4 - 2

06/09

(4) Remove 1 screw and the hinge pin.

(5) Take off the jam access cover by sliding it.

Hinge pin

Fig. 4-7

Jam access cover

4

[D] Left cover

(1) Remove 2 screws and take off the left cover.

Fig. 4-8

Left cover

Fig. 4-9

4 - 3

06/09

DISASSEMBLY AND ASSEMBLY

[E] Original tray

(1) Take off the front cover.

( P. 4-1 "[A] Front cover")

(2) Take off the rear cover.

( P. 4-2 "[B] 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: Note:

Do not pull the harness too strong.

(5) Disconnect 1 connector from the ADF control

PC board.

Feeder upper guide

Fig. 4-10

(6) Remove 1 screw and take off the bushing. (7) Take off the original tray.

Fig. 4-11

Bushing

Fig. 4-12

Original tray

Screw

4 - 4

06/09

4.2 Roller

[A] Paper feeder unit

(1) Open the jam access cover. (2) Remove 2 screws and take off the bracket.

Bracket

(3) Remove 1 clip and slide 2 bushings.

(4) Take off the paper feeder unit.

Clip

Fig. 4-13

Fig. 4-14

4

Bushing

Paper feeder unit

Fig. 4-15

4 - 5

DISASSEMBLY AND ASSEMBLY

[B] Pickup roller [PM]

(1) Take off the paper feeder unit.

( P. 4-5 "[A] Paper feeder unit")

(2) Remove 1 clip and pull out the shaft. Take off

the pickup roller.

Shaft

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.

[C] Feed roller [PM]

(1) Take off the paper feeder unit.

( P. 4-5 "[A] Paper feeder unit")

(2) Remove 1 clip.

Clip

Lock

Pickup roller

Fig. 4-16

Lock

Fig. 4-17

Clip

Fig. 4-18

4 - 6

(3) Slide the pulley and remove 1 pin.

(4) Pull out the shaft and take off the feed roller.

Pulley

Fig. 4-19

Note: Note:

Make sure you assemble the feed roller with the one-way clutch in the correct direction.

Shaft

Lock

Fig. 4-20

Feed roller

Lock

4

Fig. 4-21

4 - 7

DISASSEMBLY AND ASSEMBLY

[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: Note:

Do not pull the harness out with too much force.

(3) Remove 2 screws and take off the separation

roller holder and separation roller unit.

Feeder upper guide

Fig. 4-22

Separation roller unit

(4) Remove 1 bushing and clip, and then take off

the separation roller.

Separation roller holder

Fig. 4-23

Separation roller

Bushing

Clip

Fig. 4-24

4 - 8

[E] Feeder lower guide

(1) Take off the original tray.

( P. 4-4 "[E] 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

(4) Take off the jam access guide.

(5) Remove 4 screws. Disconnect 1 connector

and take off the feeder lower guide.

Jam access guide

4

Fig. 4-26

Feeder lower guide

Fig. 4-27

4 - 9

DISASSEMBLY AND ASSEMBLY

[F] Registration roller

(1) Take off the feeder lower guide.

( P. 4-9 "[E] Feeder lower guide")

(2) Take off the original feed motor drive section.

( P. 4-16 "[A] Original feed motor (M1)")

(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

Pulley

E-ring

Bushing

Registration roller

[G] Exit roller

(1) Take off the front cover.

( P. 4-1 "[A] Front cover")

(2) Take off the original feed motor drive section.

( 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.

(4) Remove 1 clip, 1 pulley, 1 pin, timing belt and

1 bushing from the front side of the exit/ reverse roller shaft.

Bushing

Fig. 4-28

Clip

Fig. 4-29

Bushing

Leaf spring

Clip

E-ring

Pulley

Timing belt

Fig. 4-30

4 - 10

(5) Take off the jam access guide.

(6) Pull out the exit guide.

Jam access guide

Fig. 4-31

Exit guide

4

(7) Take off the exit roller.

Fig. 4-32

Exit roller

Fig. 4-33

4 - 11

06/09

DISASSEMBLY AND ASSEMBLY

[H] Pre-reading guide

(1) Take off the front cover.

( P. 4-1 "[A] Front cover")

(2) Take off the rear cover.

( P. 4-2 "[B] Rear cover")

(3) Take off the jam access cover.

( P. 4-2 "[C] Jam access cover")

(4) Take off the left cover.

( P. 4-3 "[D] Left cover")

(5) Remove 1 screw and take off the hinge pin.

(6) Disconnect 1 connector. Remove 2 screws

and take off the pre-reading guide.

Hinge pin

Fig. 4-34

[I] Intermediate transport roller

(1) Take off the pre-reading guide.

( P. 4-12 "[H] 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

bushing from the rear side of the intermediate transport roller shaft.

(4) Remove 1 bushing from the front side of the

intermediate transport roller shaft.

(5) Take off the intermediate transport roller.

Pre-reading guide

Fig. 4-35

Screw

Bushing

Pulley

Intermediate transport roller

Fig. 4-36

Bushing

4 - 12

07/06

[J] Pre-reading roller

(1) Take off the pre-reading guide.

( P. 4-12 "[H] 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

(4) Remove 1 clip and 1 bushing from the front

side of the pre-reading roller shaft.

(5) Take off the pre-reading roller.

[K] Post-reading roller

(1) Take off the pre-reading guide.

( P. 4-12 "[H] Pre-reading guide")

(2) Disconnect 1 connector.

Bushing

Pre-reading roller

Fig. 4-37

Fig. 4-38

Connector

Pulley

Bushing

Bearing

4

Clip

Fig. 4-39

4 - 13

07/06

DISASSEMBLY AND ASSEMBLY

(3) Take off the read motor drive section.

( P. 4-19 "[D] Read motor drive section")

(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.

BearingFlange

(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.

(6) Open the RADF. Remove 4 screws, take off

2 holders and platen guide.

Bushing

E-ring

Pulley

Fig. 4-40

Timing belt

Fig. 4-41

Holder

Pulley

Clip

Platen guide

Holder

Fig. 4-42

4 - 14

(7) Remove 2 screws. Open the post-reading

lower guide and take off the post-reading upper guide.

(8) Take off the post-reading roller.

Post-reading upper guide

Fig. 4-43

4

Post-reading roller

Fig. 4-44

4 - 15

DISASSEMBLY AND ASSEMBLY

4.3 Motor / Motor drive section

[A] Original feed motor (M1)

(1) Take off the rear cover.

( P. 4-2 "[B] Rear cover")

(2) Disconnect 1 connector, and then remove 1

spring. (Spring: Outside diameter of coil – ø9.6 mm, acceptable turns of coil – 12 turns)

(3) Remove 3 screws, and then take off the orig-

inal feed motor with its bracket.

Note: Note:

When the unit is being assembled, temporarily tighten the screws removed at step (3) and then attach the spring removed at step (2). Then fully tighten these screws.

Connector

Spring

Fig. 4-45

(4) Remove 2 screws and take off the original

feed motor.

Original feed motor

Fig. 4-46

Original feed motor

Fig. 4-47

4 - 16

[B] Original feed motor drive section

(1) Take off the the original feed motor.

( 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.

(4) Disconnect 3 terminals of the switch. (5) Remove 4 screws, and then take off the

bracket.

Note: Note:

When connecting the terminal, make sure that the color of the harness is correct.

E-ring Bushing

Fig. 4-48

Bracket

White

Red

Harness clampHarness clamp

4

Black

(6) Take off the timing belt, bushings and 2 pul-

leys.

Fig. 4-49

Pulley

Bushing Timing belt

Fig. 4-50

4 - 17

09/01

DISASSEMBLY AND ASSEMBLY

[C] Read motor (M2)

(1) Take off the rear cover.

( 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)

(3) Remove 3 screws, and then take off the read

motor with its bracket.

Note: Note:

When the unit is being assembled, temporarily tighten the screws removed at step (3), and then attach the spring removed at step (2). Then fully tighten these screws.

Connector

Spring

Fig. 4-51

Read motor

(4) Remove 2 screws and take off the read

motor.

Fig. 4-52

Read motor

Fig. 4-53

4 - 18

[D] Read motor drive section

(1) Take off the rear motor.

( P. 4-18 "[C] Read motor (M2)")

(2) Remove 1 spring. (Spring: Outside diameter

of coil –ø8.8 mm, active coils – 12.5)

(3) Release the harness from 2 harness clamps.

Spring

Harness clamp

Fig. 4-54

(4) Remove 3 screws and then take off the

bracket.

(5) Take off 1 timing belt and 4 bushings.

4

Bracket

Fig. 4-55

Timing belt

Bushing Bushing

Fig. 4-56

4 - 19

07/06

DISASSEMBLY AND ASSEMBLY

(6) Loosen 1 screw of the belt tensioner. (7) Remove the 4 E-rings, and then take off the

4 pulleys and timing belt.

Note: 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).

Screw

Tensioner

E-ring

Timing belt

Fig. 4-57

4 - 20

07/06

4.4 Solenoid

[A] Original pickup solenoid (SOL)

(1) Take off the original feed motor drive section.

( 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

(3) Remove 2 screws and take off the original

pickup solenoid from the bracket.

Note: 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. 4-58

Original pickup solenoid

Bracket

Fig. 4-59

4

Fig. 4-60

4 - 21

DISASSEMBLY AND ASSEMBLY

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.

(3) Remove 1 screw and take off the cover. (4) Disconnect 1 connector and take off the orig-

inal tray width sensor.

Fig. 4-61

Cover

Note: Note:

If washers (3 pcs) and a pinion come off, assemble them in the order as shown in the illustration.

Pinion

Connector

Fig. 4-62

Washer (Black: t= 0.25

Washer (Gold

Washer (Black: t= 0.13

Fig. 4-63

Original tray width sensor

)

4 - 22

06/09

[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) Release 2 latches and take off the original

tray sensor.

4

Holder

Fig. 4-65

Original tray sensor

Fig. 4-66

4 - 23

06/09

DISASSEMBLY AND ASSEMBLY

[C] Jam access cover sensor (S7)

(1) Open the jam access cover. (2) Remove 1 screw and take off the metal plate

cover.

(3) Disconnect 1 connector. Release 2 latches

and take off the jam access cover sensor.

Metal plate cover

Fig. 4-67

Jam access cover sensor

[D] Original empty sensor (S3)

(1) Open the jam access cover. (2) Remove 1 screw and take off the metal plate

cover.

Fig. 4-68

Metal plate cover

Fig. 4-69

4 - 24

(3) Remove 2 screws and take off the bracket.

(4) Disconnect 1 connector. Release 2 latches

and take off the original empty sensor.

Bracket

Fig. 4-70

4

[E] Original registration sensor (S4)

(1) Take off the feeder lower guide.

( P. 4-9 "[E] Feeder lower guide")

(2) Disconnect 1 connector. Release 2 latches

and take off the original registration sensor.

Original empty sensor

Fig. 4-71

Original registration sensor

Fig. 4-72

4 - 25

DISASSEMBLY AND ASSEMBLY

[F] Read sensor (S5)

(1) Take off the pre-reading guide.

( P. 4-12 "[H] Pre-reading guide")

(2) Release 2 latches and take off the read sen-

sor from the pre-reading upper guide.

[G] Original exit/reverse sensor (S6)

(1) Take off the pre-reading guide.

( P. 4-12 "[H] Pre-reading guide")

(2) Disconnect 1 connector.

Read sensor

Fig. 4-73

Connector

Fig. 4-74

(3) Open the ADF. Remove 4 screws, and then

take off 2 holders and platen guide.

4 - 26

Holder

Platen guide

Holder

Fig. 4-75

(4) Remove 2 screws. Open the post-reading

lower guide and take off the post-reading upper guide.

(5) Release 2 latches and take off the Original

exit sensor from the post-reading upper guide.

Post-reading upper guide

Fig. 4-76

Original exit sensor

4

[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.

Fig. 4-77

RADF opening/closing sensor

Fig. 4-78

4 - 27

DISASSEMBLY AND ASSEMBLY

[I] Jam access cover opening/closing switch (SW)

(1) Take off the bracket of the original feed motor

drive section. ( P. 4-17 "[B] Original feed motor drive section")

(2) Disconnect 3 terminals. Remove 1 screw

and take off the jam access cover opening/ closing switch.

Note: Note:

When connecting the terminal, make sure that the color of the harness is correct.

Bracket

Jam access cover opening/closing switch

White

Red

Fig. 4-79

Black

4 - 28

09/01

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.

(3) Release 2 lock supports and 3 edge spacer.

Take off the ADF board.

Fig. 4-80

Fig. 4-81

4

ADF board

4 - 29

DISASSEMBLY AND ASSEMBLY

4.7 Others

[A] Hinge stopper

(1) Remove 1 screw and then take off the hinge

stopper.

Note: Note:

When the hinge stopper is taken off, the opening angle for the RADF becomes approx. 90 degrees. Take off the hinge stopper only when it is needed for installation, maintenance service, etc.

Hinge stopper

Fig. 4-82

Fig. 4-83

4 - 30

5. ADJUSTMENT

5.1 Adjustment of Position

Perform this adjustment when the ADF is not installed in the correct position.

Note: 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

(2) Remove the platen sheet.

Fig. 5-1

Fig. 5-2

5 - 1

ADJUSTMENT

(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

5 - 2

09/12

(3) Loosen the left-hand hinge screw at the rear

side.

(4) Loosen the hinge screws at the front side.

Fig. 5-6

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.

Fig. 5-7

Fig. 5-8

5 - 3

ADJUSTMENT

(6) Tighten the left-hand hinge screw at the rear

side.

(7) Loosen the hole position adjustment screws

on the right hand side.

Fig. 5-9

(8) Match the screw hole positions.

Fig. 5-10

Fig. 5-11

5 - 4

(9) Install the right-hand hinge screw at the rear

side.

(10) Install the bracket on the left-hand hinge.

(MR-2020 only)

Fig. 5-12

5

(11) Tighten the hinge screws at the front side.

Fig. 5-13

Fig. 5-14

5 - 5

09/12

ADJUSTMENT

(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

5 - 6

5.2 Adjustment of Height

Note: 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

0.2mm

~

0

A

B

A

B

Fig. 5-16

5 - 7

0mm

ADJUSTMENT

[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

5 - 8

5.3 Adjustment of Skew

Note: 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)

(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.

5

[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

5 - 9

ADJUSTMENT

(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 "-".

5 - 10

5.4 Adjustment of the Leading Edge Position

Note: 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.

E

Fig. 5-23 Chart (Original)

[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: Note:

Changing one value shifts the copy image by 0.2 mm.

F

Fig. 5-24 Copy

5

• 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: Note:

Changing one value shifts the copy image by 0.2 mm.

(3) Press the [INTERRUPT] button.

5 - 11

ADJUSTMENT

5.5 Adjustment of Horizontal Position

Note: 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: 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: Note:

Changing one value shifts the copy image by 0.042 mm.

H

Fig. 5-26

(3) Press the [INTERRUPT] button.

5 - 12

5.6 Adjustment of Copy Ratio

Note: 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.

5 - 13

ADJUSTMENT

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).

A

Fig. 5-28

Fig. 5-29

5 - 14

6. TROUBLESHOOTING

6.1 Troubleshooting for Mechanical Errors

1) Multiple originals are transported simultaneously Original abnormally curled or folded?

↓

NO Separation roller is dirty? ↓ YES→ Clean the roller with alcohol NO Replace the separation rollers with new ones

2) Original is not transported to registration roller Original thicker than specified?

⎟

↓

NO Pickup roller and feed roller are dirty? ↓ YES→ Clean the rollers with alcohol NO Transport power of pickup roller and feed roller is weak?

↓

YES Replace the rollers with new ones

YES→ Flatten the original and set it again

YES→ Use originals with permissible thickness.

Place thick originals manually on the platen cover to make a copy

3) Leading edge of original is skewed Front and rear protrusions at bottom of ADF are out of contact with glass?

↓

NO Transport rollers are dirty? ↓ YES→ Clean the rollers with alcohol NO 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?

↓

NO Check the scanner adjustment

5) Black streaks appear on copied image ADF original glass is dirty?

↓

NO Check the scanner unit

YES→ Adjust the height of the left hinge

YES→ Move the slides so that they contact the edges of the original

YES→ Clean the glass with a dry/squeezed cloth

6

6 - 1

TROUBLESHOOTING

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?

↓

YES DC+5V supplied to CN70-2, 3pin? ↓ NO→ Connect the harness properly or replace it YES DC+24V supplied to CN70-6, 7pin? ↓ NO→ Connect the harness properly or replace it YES DC+24V supplied to CN72-4pin? ↓ NO→ Check or replace the jam access cover switch YES Empty sensor is ON when there is paper? ↓ NO→ Check or replace the empty sensor YES Check or replace the ADF board

2) Abnormality of motor Power supplied and drives signals to connector of motor?

↓

YES There is no mechanical overloading at the motor and the drive system is correct? (Belt tension etc.) ↓ NO→ Check or replace motor harness YES Check or replace the RADF board

NO→ Connect the harness properly or replace it

NO→ Check or replace motor

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? ↓ NO→ Connect the harness to the connector properly or replace it. YES Are the original tray width sensor and original tray sensor normal? ↓ NO→ Check the original tray width sensor and original tray sensor or replace them. YES Check the ADF board or replace it.

6 - 2

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 solenoid 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.

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.

6

6 - 3

09/12

TROUBLESHOOTING

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/closing 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?

6 - 4

09/12

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

6 - 5

09/12

TROUBLESHOOTING

6 - 6

7. MAINTENANCE AND REWRITING ROM

7.1 Periodic Maintenance

5

67 8

1234

Fig. 7-1

Symbols used in the checklist

Cleaning Lubrication/Coating Replacement Operation check

A: Clean with alcohol B: Clean with soft pad,

cloth or vacuum cleaner

L: Launa 40 SI: Silicon oil W: White grease

(Molykote X5-6020)

AV: Alvania No.2

Preventive Maintenance Checklist

Note: Note:

Page-Item (P-I) is described in the column of the Parts list.

9

The number of sheets consumed before replacement (Value x 1,000). R: Replace if deformed or

damaged

O: After cleaning or

replacement, confirm there is no problem

Lubrica-

Item to check Cleaning

1 Pickup roller A 90 5-1

2 Separation roller A 90 4-10

3 Feed roller A 90 5-1

4 Registration roller A

5 Intermediate transfer roller A

6 Front read roller A

7 Rear read roller A

8 Exit/reverse roller A

9 Platen sheet B or A

tion/

Coating

7 - 1

06/09

Replace-

ment

(x1,000)

Operation

check

Parts list

(P-I)

MAINTENANCE AND REWRITING ROM

Remarks

7

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

7 - 2

8. CIRCUIT DIAGRAM / HARNESS DIAGRAM

8.1 Assembly of PC Board

• Component side

• Soldered side

Fig. 8-1

8

Fig. 8-2

8 - 1

CIRCUIT DIAGRAM / HARNESS DIAGRAM

8.2 Circuit Diagram

PWA-F-DLM-320

DOWNLOAD JIG

18

19

20

+24V

FG

14

15

16

17

+24VSG+5V

DGDG+5V

J42

10

11

12

13

8

9

SC-REQ

DF-REQ

CONECT

SG

DF-ACK

RXD

1234567

TXDSGSC-ACK

SCAN-ST

+5V

LED

SG

A17A5A11A7A13

33343025262728

31

32

MA

+5V

LED

DLCNT

[

17

]

2

A15

29

MA

[

13

15

11

]

GSOL-ON

+24V

4

5

GSOL-ON

+24V

1

J99 J99

A9

MA

[

5

7

9

]

PSOL-OFF

PSOL-ON

CN79

J79

PSOL-ON

2

3

J98 J98

CE

A1

A3

22

23

24

DLCS

MA

[

1

3

]

+24V

123

PSOL-OFF

+24V

1

D7

D3SGA18

D5

MD

[

3

5

7

]

D1

CN81

MD

[

1

]

SG

A16A4A8

SG

MA

[

16

18 ]

A2,B2

B3

123456789

TXDSGSC-ACK

SCAN-START

JAM-COM

JAM-NO

CN72

J72

123

FG

SCANNER I/F

PWA-F-DLG-644

A12

12

MA

[ 12

]

B1

A10

11

MA

[ 10

]

A1

10

MA

[ 8

]

MA

[ 6

]

MA

4

A2

MA

[

[ 2

]

MA

[ 0

]

MRD

D6

MD

[ 8

]

MD

[ 4

]

A

6

MD

[ 2

]

ACCM

D0D2D4

123456789

MD

[ 0

]

A (-)

B

CN77

J77

BCOM

B (-)

12345

+24V

A

6

+24V

ACCM

POWER

SUPPLY

10

1234567

SC-REQ

DF-REQ

J71

CN71

SG

DF-ACK

RXD

DF-COM

DF-NO

4

J70

CN70

SG

+5V

PG

+5V

BCOM

A

B

(-)

B

CN76

J76

12345

DFCNT

( SG

)

FANON

(-)

+24V

CN84

A14

131415161718192021

MA

[

14 ]

]

A3

CN78

OESGA0

A6

BCOM

ACCM

A

B

(-)

B

65432

J66

Original feed motor

COM

NO

NC

COMNONC

SW1

Jam access cover

opening/closing switch

1

2

SOL2

Gate solenoid

SOL1

Original pickup solenoid

BCOM

ACCM

A

B

(-)

B

123

A

1

J65

M2

A

65432

1

M1

Read motor

Fig. 8-3

8 - 2

09/12

PWA-F-DLG-643

CN83

CN82

CN80

SG

15

MID-S

+5V

13

14

SG

12

READ-S

+5V

10

11

SG

EXIT-S

+5V

CN75

J75

JCOVU-S

SG

1

6

+5V

SG

J92

Not used

EMPTY-S

+5V

123456789

65432

12345

DFOPEN-S

SG

15

16

Not used

+5V

-

13

14

LENGTH-S

SG

11

12

11

12

+5V

10

Not used

WIDTH1-S

SG

CN74

J74

+5V

789

SG

J86 J86

WIDTH2-S

+5V

SG

10

987654321

456

ALIGN-S

ALIGN

SG

11

+5V

123456789

12

123

+5V

TWIDTH2-S

SG

TWIDTH0-S

TWIDTH1-S

SG

CN73

J73

TLENGTH-S

+5V

1234567

READ-S

+5V

SG

12

11

10

J94

123

S5

Read sensor

EXIT-S

+5V

SG

12

11

10

J93

123

S6

Original exit sensor

JCOVU-S

SG

J97

S7

Jam access cover

sensor

EMPTY-S

+5V

123

+5V

SG

123

J96

S3

Original empty sensor

DFOPEN-S

+5V

SG

123

J87

S8

ADF opening/closing

sensor

Fig. 8-4

ALIGN

+5V

SG

123

J88

S4

Original registration

sensor

TWID 2S

SG

1

J83

O

S2

Original tray

width sensor

TLENG-S

TWID 0S

TWID 1S

+5V

SG

234

GKY

123

J85

S1

Original tray sensor

8

CIRCUIT DIAGRAM / HARNESS DIAGRAM

8 - 3

8.3 Control PC Board Circuit

Fig. 8-5

8 - 4

06/09

Fig. 8-6

8

8 - 5

CIRCUIT DIAGRAM / HARNESS DIAGRAM

Fig. 8-7

8 - 6

Fig. 8-8

8

8 - 7

CIRCUIT DIAGRAM / HARNESS DIAGRAM

Fig. 8-9

8 - 8

Fig. 8-10

8

8 - 9

CIRCUIT DIAGRAM / HARNESS DIAGRAM

8 - 10

Toshiba MR-2020, MR-2017 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

1. SPECIFICATION

2. GENERAL DESCRIPTION

2.1 Main Components

2.2 Sectional View

2.3 Electric Parts Layout

2.4 Symbols and Functions of Various Components

2.5 Diagram of Signal Blocks

2.6 Description of Interface Signals

3. DESCRIPTION OF OPERATIONS

3.1 DRIVE SYSTEM

3.1.1 Outline

3.1.2 Original feed motor drive section

3.1.3 Read motor drive section

3.2 Original Size Detection

3.2.1 Outline

3.2.2 Original tray width sensor

3.3 FLOW CHART

3.4 DESCRIPTION OF CIRCUIT

3.4.1 Drive Circuit for Feed Motor

3.4.2 Drive Circuit for Read Motor

3.4.3 Reset Circuit

3.4.4 Drive Circuit for Pickup Solenoid

4. DISASSEMBLY AND ASSEMBLY

4.1 Cover

4.2 Roller

4.3 Motor / Motor drive section

4.4 Solenoid

4.5 Sensor/switch

4.6 PC Board

4.7 Others

5. ADJUSTMENT

5.1 Adjustment of Position

5.2 Adjustment of Height

5.3 Adjustment of Skew

5.4 Adjustment of the Leading Edge Position

5.5 Adjustment of Horizontal Position

5.6 Adjustment of Copy Ratio

5.7 Adjustment of ADF Opening/Closing Sensor

6. TROUBLESHOOTING

6.1 Troubleshooting for Mechanical Errors

6.2 Troubleshooting for Electrical Errors

6.3 Jam

7. MAINTENANCE AND REWRITING ROM

7.1 Periodic Maintenance

7.2 Rewriting ROM (Firmware Updating)

8. CIRCUIT DIAGRAM / HARNESS DIAGRAM

8.1 Assembly of PC Board

8.2 Circuit Diagram

8.3 Control PC Board Circuit