Toshiba MR-3018 User Manual

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SERVICE MANUAL

REVERSING AUTOMATIC DOCUMENT FEEDER

MR-3018

File No. SME05000600 R05032183100-TTEC Ver00_2005-06

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General Precautions for Installation/Servicing/Maintenance

for the MR-3018

The installation and service should be done by a qualified service technician.

1) When installing the MR-3018 to the Equipment, be sure to follow the instructions described in the “Unpacking/Set-Up Procedure for the MR-3018” booklet which comes with each unit of the MR-

3018.

2) The MR-3018 should be installed by an authorized/qualified person.

3) Before starting installation, servicing or maintenance work, be sure to turn OFF and unplug the equipment first.

4) When servicing or maintaining the MR-3018, be careful about the rotating or operation sections such as gears, pulleys, sprockets, cams, belts, etc.

5) When parts are disassembled, reassembly is basically the reverse of disassembly unless otherwise noted in this manual or other related materials. Be careful not to reassemble small parts such as screws, washers, pins, E-rings, toothed washers to the wrong places.

6) Basically, the machine should not be operated with any parts removed or disassembled.

7) Delicate parts for preventing safety hazard problems (such as switches, sensors, etc. if any) should be handled/installed/adjusted correctly.

8) Use suitable measuring instruments and tools.

9) 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.

10)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.

11)For the recovery and disposal of used MR-3018, consumable parts and packing materials, follow the relevant local regulations/rules should be followed.

12)After completing installation, servicing and maintenance of the MR-3018, return the MR-3018 to its original state, and check operation.

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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

3.1.4 Original exit/reverse motor drive section .................................................................. 3-4

3.2 Original Size Detection ........................................................................................................ 3-5

3.2.1 Outline ...................................................................................................................... 3-5

3.2.2 Original tray width sensor ......................................................................................... 3-5

3.2.3 Original width detection sensors-1 and -2 / Original length detection sensor........... 3-6

3.3 FLOW CHART ..................................................................................................................... 3-8

3.4 DESCRIPTION OF CIRCUIT............................................................................................. 3-16

3.4.1 Drive Circuit for Feed Motor ................................................................................... 3-16

3.4.2 Drive Circuit for Read Motor ................................................................................... 3-17

3.4.3 Drive Circuit for Exit Motor .................................................................................... 3-18

3.4.4 Drive Circuit for FAN Motor ................................................................................... 3-18

3.4.5 Reset Circuit .......................................................................................................... 3-19

3.4.6 Drive Circuit for Pickup Solenoid ........................................................................... 3-19

3.4.7 Drive Circuit for Gate Solenoid .............................................................................. 3-20

4. DISASSEMBLY AND ASSEMBLY ............................................................................... 4-1

4.1 Cover ................................................................................................................................... 4-1

4.2 Roller ................................................................................................................................... 4-6

4.3 Motor / Motor drive section ............................................................................................... 4-18

4.4 Solenoid............................................................................................................................. 4-24

4.5 Sensor/switch .................................................................................................................... 4-26

4.6 PC Board ........................................................................................................................... 4-34

4.7 Others................................................................................................................................ 4-35

5. Adjustment ................................................................................................................... 5-1

5.1 Adjustment of Position ......................................................................................................... 5-1

5.2 Adjustment of Height ........................................................................................................... 5-6

5.3 Adjustment of Skew ............................................................................................................. 5-8

5.4 Adjustment of the Leading Edge Position.......................................................................... 5-11

5.5 Adjustment of Horizontal Position...................................................................................... 5-13

5.6 Adjustment of Copy Ratio .................................................................................................. 5-14

5.7 Adjustment of RADF Opening/Closing Sensor .................................................................. 5-15

6. Troubleshooting .......................................................................................................... 6-1

6.1 Troubleshooting for Mechanical Errors................................................................................ 6-1

6.2 Troubleshooting for Electrical Errors ................................................................................... 6-2

7. MAINTENANCE AND REWRITING ROM .................................................................... 7-1

7.1 Periodic Maintenance .......................................................................................................... 7-1

7.2 Rewriting ROM (Firmware Updating)................................................................................... 7-2

June 2005 © TOSHIBA TEC MR-3018 CONTENTS

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8. CIRCUIT DIAGRAM / HARNESS DIAGRAM ............................................................... 8-1

8.1 Assembly of PC Board.........................................................................................................8-1

8.2 Circuit Diagram .................................................................................................................... 8-2

8.3 Control PC Board Circuit .....................................................................................................8-4

MR-3018 CONTENTS June 2005 © TOSHIBA TEC

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1. Specification

Item Contents Remarks

Maximum number of originals on the original feeding tray

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

Acceptable paper weight

Dimensions W600 x D523 x H135 (mm) Excluding hinges and original tray

Weight 12.5 kg

Power consumption Approx. 49.5 W

Power requirements DC5 V, DC24 V Supplied from the equipment

Co-packed items Unpacking Instruction (1 set)

Up to 100 sheets or 16 mm in height.

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

1-sided: 35 - 157 g/m

(9.3 lb. Bond - 58 lb. Cover)

2-sided: 50 - 157 g/m

(13.3 lb. Bond - 58 lb. Cover)

Charts (A4/LT: 1 sheet each) Mounting screws (6 pcs) Positioning pins (2 pcs) Washer (1 pc)

35 - 80 g/m

(9.3 - 21.3 lb. Bond)

June 2005 © TOSHIBA TEC MR-3018 Specification

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MR-3018 Specification June 2005 © TOSHIBA TEC

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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/reverse roller Reverse registration roller

Original tray Original reverse tray

Original empty sensor (S3) Original length detection sensor (S4) Original registration sensor (S5) Original width detection sensor-1 (S6) Original width detection sensor-2 (S7) Original intermediate transport sensor(S8) Read sensor (S9) Original exit/reverse sensor (S10) Jam access cover sensor (S11)

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

Read motor (M2) Original exit/reverse motor (M3) Fan motor (M4) Original pickup solenoid (SOL1) Gate solenoid (SOL2) RADF opening/closing sensor (S12) Jam access cover opening/closing switch (SW1) RADF control PC board (ADF)

Original exit tray section

June 2005 © TOSHIBA TEC MR-3018 GENERAL DESCRIPTION

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2.2 Sectional View

TRY1 Original tray R4 Registration roller

TRY2 Original reverse tray R5 Intermediate transfer roller

TRY3 Original exit tray R6 Pre-reading roller

FLP1 Exit gate R7 Platen roller

FLP2 Reverse flapper R8 Post-reading roller

R1 Pickup roller R9 Reverse registration roller

R2 Feed roller R10 Exit/reverse roller

R3 Separation roller

FLP1

R10 FLP2

R3R4

Fig.2-2

TRY2

TRY3

TRY1

MR-3018 GENERAL DESCRIPTION June 2005 © TOSHIBA TEC

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2.3 Electric Parts Layout

SOL1

ADF

SOL2

SW1

S11

S12

S10

Fig.2-3

June 2005 © TOSHIBA TEC MR-3018 GENERAL DESCRIPTION

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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

M3 Original exit/reverse motor Drives the original exit/reverse roller.

M4 Fan motor Cools off the ADF drive section and ADF board.

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 length detection

sensor

S5 Original registration sensor Detects transport of the original at the registration roller section.

S6 Original width detection sen-

sor-1

S7 Original width detection sen-

sor-2

S8 Original intermediate trans-

port sensor

S9 Read sensor Detects the leading edge of the original at the original scanning section.

S10 Original exit/reverse sensor Detects the exit (transit) of an original. Also detects the stop reference

S11 Jam access cover sensor Detects opening/closing of the Jam access cover.

S12 RADF opening/closing sen-

sor

SW1 Jam access cover opening/

closing switch

read roller, platen roller, rear read roller and reverse registration roller.

Detects the length of the original.

Detects the width of the original.

Detects the original transported to the Pre-scanning section.

position for an original when in reverse.

Detects opening/closing of the RADF.

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

3) Solenoid

Symbol Name Function

SOL1 Original pickup solenoid Drives up and down the original pickup roller.

SOL2 Gate solenoid Drives the reverse flapper. (Switches the flapper to the reverse side

when turned to ON.)

4) PC board

Symbol Name Function

ADF RADF control PC board

(ADF board)

MR-3018 GENERAL DESCRIPTION June 2005 © TOSHIBA TEC

Controls the RADF.

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2.5 Diagram of Signal Blocks

Equipment

RxD

TxD

REQ

ACK

DF-REQ

DF-ACK

SCAN-ST

CNT

DC 24V

DC 5V

Downlad jig

RADF

Reset IC

CPU

Driver

Original feed motor (M1)

Read motor (M2)

Original exit/reverse motor (M3)

Fan motor (M4)

Original pickup solenoid (SOL1)

Gate solenoid (SOL2)

Original tray sensor (S1)

Original tray width sensor (S2)

Original empty sensor (S3)

Original length detection sensor (S4)

Original registration sensor (S5)

Original width detection sensor-1 (S6)

Original width detection sensor-2 (S7)

Original intermediate transport sensor (S8)

Read sensor (S9)

Original exit/reverse sensor (S10)

Jam access cover sensor (S11)

RADF opening/closing sensor (S12)

Jam access cover opening/closing switch (SW1)

Fig.2-4

June 2005 © TOSHIBA TEC MR-3018 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 RADF.

REQ ......................Communication request signal (from equipment to the RADF)

DF-REQ ................Communication request signal (from the RADF to equipment)

DF-ACK.................Communication request acknowledging signal (from the RADF to equipment)

ACK.......................Communication request acknowledging signal (from equipment to the RADF)

TxD .......................Data transmitted from equipment to the RADF

RxD .......................Data transmitted from the RADF to equipment

Data communication (RxD and TxD) between the scanner and the RADF 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

MR-3018 GENERAL DESCRIPTION June 2005 © TOSHIBA TEC

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3. DESCRIPTION OF OPERATIONS

3.1 DRIVE SYSTEM

Feed motor drive section

Read motor drive section

Exit/reverse motor drive section

Fig.3-1

3.1.1 Outline

Originals are transported by the original feed motor, read motor and original exit/reverse 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 platen roller. Original exit/reverse motor drive section: exits and reverses originals, and drives the exit/reverse 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 original exit/reverse motor also rotates reversely when the originals are being reversed and transported, compared to its rotational direction when they are being exited. The read motor always rotates in a constant direction.

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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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.

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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3.1.3 Read motor drive section

Read motor

Reverse registration roller

Post-reading roller

Platen roller

Intermediate transfer rollerPre-reading roller

Fig.3-3

The transported original is driven by the read motor. Then the original is transported to a scanning start position by the intermediate transfer roller, pre-reading roller and platen 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.

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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3.1.4 Original exit/reverse motor drive section

Gate solenoid

Reverse fapper

Exit/reverse motor

Exit

Reverse

Exit/reverse rollor

Fig.3-4

When the data of the original have been scanned, the original is exited to the original exit tray by the exit/reverse roller driven by the exit motor (shown in a solid line in the figure). In the duplex scanning mode, the gate solenoid is turned ON and the reverse flapper is lowered to switch the transport path to the reverse tray side when the scanning of one side of the original is completed. When the reverse flapper is lowered, the original is temporarily transported to the reverse tray, and then the exit motor rotates reversely to return the original to the transport path switched for reverse operation (shown in a dotted line in the figure). The reversed original is aligned with the reverse registration roller, and then the other side of the original is scanned. When the scanning is completed, the original is exited to the original exit tray.

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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3.2 Original Size Detection

The original tray width sensor, original length detection sensor, and original width detection sensors-1 and -2 work in combination to detect the size of originals.

Original width detection sensor-2

Original width detection sensor-1

Original length detection sensor

Fig.3-5

Original tray width sensor

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. Then the original width sensors -1 and -2 and the original length detection sensor detect the size of the original being transported. Based on the detection result of these sensors, the size of the original is finally determined.

3.2.2 Original tray width sensor

The original tray width sensor detects the width of the original placed on the original tray. This sensor consists of a leaf spring and 4 contacting points (= 4 harnesses). When the original width guides are moved, a protruded part located under the guides pushes the leaf spring, and the leaf spring thus contacts the harnesses. The gap between these guides is detected by this contact. A terminal connected with the black harness is for grounding (= common). When the leaf spring contacts with each harness of gray, yellow and orange, each terminal connected with these harnesses generates a signal at a low level. The combination of these contact (= low level) and release (= high level) can determine the width of the original. Sizes detectable in combination of these contact and release are as follows:

TWIDTH2

(Orange)

HHH LD / LT HHL HLH ST-R

LHH LD / LT LHL L L H 8.5x8.5 / LT-R / KLG / 13”LG LLL COMPUTER

TWIDTH1

(Yellow)

TWIDTH0

(Gray)

Original width size

H (= high level): Release L (= low level): Contact

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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3.2.3 Original width detection sensors-1 and -2 / Original length

detection sensor

The size of the original is determined by the detection performed in combination of the original width detection sensors-1 and -2 and the original length detection sensor, as well as the detection performed by the original tray width sensor. Sizes detectable in combination of these sensors are as follows:

A4 series (ORG-SRS: 1)

Original length

detection sensor

OFF

A4 series (width sizes mixed at A3 / A4 standard)

Original length

detection sensor

OFF

Original width

sensor-1

OFF OFF A5-R -

ON OFF B5 -

ON ON A4 -

OFF OFF B5-R -

ON OFF

ON ON A3 -

Original width

sensor-1

ON ON A3

OFF OFF A4-R / FOLIO

ON OFF B4

ON OFF B5

ON ON A4

Original width

sensor-2

Original width

sensor-2

Size determined Original tray width

A4-R / FOLIO

Size determined Original tray width

Determined by a gap

between guides

A3 / A4

A4 series (width sizes mixed at B4 / B5 standard)

Original length

detection sensor

OFF

Original width

sensor-1

OFF OFF A4-R / FOLIO

ON OFF B4

ON OFF B5

OFF OFF A5-R

Original width

sensor-2

A4 series (width sizes mixed at A4-R standard)

Original length

detection sensor

OFF OFF OFF A5-R

Original width

sensor-1

OFF OFF B5-R

Original width

sensor-2

A4 series (width sizes mixed at B5-R standard)

Original length

detection sensor

ON OFF OFF B5-R

OFF OFF OFF A5-R

Original width

sensor-1

Original width

sensor-2

Size determined Original tray width

B4/B5

Size determined Original tray width

A4-RON OFF A4-R / FOLIO

Size determined Original tray width

B5-R

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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LT series (ORG-SRS: 0)

Original length

detection sensor

OFF

Original width

sensor-1

OFF OFF ST-R -

ON OFF 8.5x8.5 -

ON ON A4 -

ON OFF LT-R / LG / COMP / 13”LG -

ON ON LD -

Original width

sensor-2

LT series (width sizes mixed at LD / LT standard)

Original length

detection sensor

OFF ON ON LT

Original width

sensor-1

ON ON LD

ON OFF COMP

OFF OFF LT-R / LG / 8.5x8.5 / 13”LG

Original width

sensor-2

LT series (width sizes mixed at LG / LT-R standard)

Original length

detection sensor

ON ON OFF LT-R / LG / 8.5x8.5 / 13”LG

OFF OFF OFF ST-R

Original width

sensor-1

Original width

sensor-2

Size determined Original tray width

LD / LT

Size determined Original tray width

LD / LT

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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3.3 FLOW CHART

Standby

Power ON

RADF jam access cover OPEN?

All sensors OFF?

YES

Empty sensor ON?

YES

Feed request signal received?

YES

Original on feeding tray?

YES

Jam

Standby

YES

Pickup solenoid ON, pickup roller goes down, feed motor rotates forward.

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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Jam

Page 23

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.

A certain period of time passed?

YES

Jam

Paper transprted

before the intermideate

transport roller?

YES

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

Monitoring registration sensor by parallel processing. Feed motor stops when registration sensor detects trailing edge of original. Skip to .

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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Original intermediate transport sensor ON?

YES

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

Feed request signal

received?

YES

Duplex?

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

YES

A certain period of time passed?

YES

Jam

Transport for

a certain amount of

distance completed?

YES

Scanning start signal

sent (level: High)

Exposure and scanning start.

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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Original exit/reverse

sensor ON?

Original exit/reverse

motor rotates.

Read sensor OFF?

A certain period of time passed?

Scanning start signal

sent (level: High)

YES

A certain period of time passed?

YES

Jam

Scanning completed.

Original exit/reverse

sensor OFF?

YES

Read motor stops.

Transport for

a certain amount of

distance completed?

YES

Original exit/reverse

motor stops.

END

A certain period of time passed?

YES

Jam

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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

Gate solenoid ON

Transport for

a certain amount of

distance completed?

YES

Scanning start signal

sent (level: High)

Original exit/reverse

sensor ON?

YES

Original exit/reverse

motor rotates.

Read sensor OFF?

YES

Exposure and scanning start.

A certain period

of time passed?

YES

Jam

A certain period

of time passed?

YES

Scanning start signal

sent (level: Low)

Scanning completed.

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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Original exit/reverse

sensor OFF?

YES

Transport for

a certain amount of

distance completed?

YES

Original exit/reverse motor

and read motor stop.

After a certain period of time, original exit/reverse motor reverses, read motor starts, reverse roller aligns original, and then system reboots.

Original intermediate transport sensor ON?

YES

Exit/reverse and read motor

stop after transporting for

a certain amount of distance.

A certain period of time passed?

YES

Jam

A certain period of time passed?

YES

Jam

Transport request

signal received?

YES

Read motor and exit/reverse motor rotate at requested speed.

Transport for

a certain amount of

distance completed?

YES

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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Scanning start signal

sent (level: High)

Original exit/reverse

sensor ON?

Original exit/reverse

motor rotates.

Read sensor OFF?

A certain period of time passed?

YES

Exposure and scanning start.

A certain period of time passed?

Jam

YES

Scanning start signal

sent (level: Low)

Original exit/reverse

sensor OFF?

Transport for

a certain amount of

distance completed?

YES

Scanning completed.

A certain period of time passed?

YES

Jam

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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Original exit/reverse motor

and read motor stop.

After a certain period of time, original exit/reverse motor reverses, read motor starts, reverse roller aligns original, and then system reboots.

Original intermediate transport sensor ON?

YES

Original exit/reverse

sensor OFF?

YES

Transport for

a certain amount of

distance completed?

YES

A certain period of time passed?

YES

Jam

A certain period of time passed?

YES

Jam

Original exit/reverse motor

and read motor stop.

Gate solenoid OFF

END

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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3.4 DESCRIPTION OF CIRCUIT

3.4.1 Drive Circuit for Feed Motor

Fig.3-6

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 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, 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 (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).

) are input to control the

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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3.4.2 Drive Circuit for Read Motor

Fig.3-7

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

June 2005 © TOSHIBA TEC MR-3018 DESCRIPTION OF OPERATIONS

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3.4.3 Drive Circuit for Exit Motor

Fig.3-8

This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor current of the exit motor. A drive clock signal (EMOT-CLK) and rotation direction signal (EMOT-CW/CCW the speed and direction of the motor rotation. When the level of the enabling signal (EMOT-Enable) is set to "L", motor current is turned OFF regardless of the state of other signals. As IC3-10pin (MODE1) is connected to +5V, excitation mode is applied at 1-2 phase excitation. The edge switching signal (EMOT-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 switching the level of the reference switching signal (EMOT-REFS0,EMOT-REFS1).

) are input to control

3.4.4 Drive Circuit for FAN Motor

Fig.3-9

This circuit controls the rotation/stoppage of the fan motor. The FAN starts to rotate when the FAN motor drive signal level is set to “H”, and stops when the level is set to “L”.

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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3.4.5 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.

3.4.6 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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Page 34

3.4.7 Drive Circuit for Gate Solenoid

Fig.3-12

Gate solenoid driven by the driver transistor (Q1) is a solenoid which is used to switch an original into the reverse tray when in the duplex scanning mode. When the GSOL-ON-Signal level is set to “L”, the reverse flapper goes down and the original is transported to the reverse tray.

MR-3018 DESCRIPTION OF OPERATIONS June 2005 © TOSHIBA TEC

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Page 35

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.

Fig.4-1

Fig.4-2

(4) Take off the front cover toward you.

Front cover

Fig.4-3

June 2005 © TOSHIBA TEC MR-3018 DISASSEMBLY AND ASSEMBLY

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Page 36

[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

ClipDial

Fig.4-6

MR-3018 DISASSEMBLY AND ASSEMBLY June 2005 © TOSHIBA TEC

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Page 37

(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

[D] Left cover

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

Fig.4-8

Left cover

Fig.4-9

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[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.4-6 "[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 RADF con-

trol PC board.

Feeder upper guide Screw

Screw

Fig.4-10

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

Fig.4-11

Original tray

Bushing

Screw

Fig.4-12

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Page 39

[F] Original reverse tray

(1) Take off the original tray.

( P.4-4 "[E] Original tray")

(2) Remove 1 screw and take off the original

reverse tray.

Original reverse tray

Fig.4-13

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Page 40

4.2 Roller

[A] Paper feeder unit

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

(3) Remove 1 clip and slide 2 bushings.

Screw

Bracket

Fig.4-14

Clip

Fig.4-15

(4) Take off the paper feeder unit.

Paper feeder unit

T.B.D.

Fig.4-16

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Page 41

[B] Pickup roller [PM]

(1) Take off the paper feeder unit.

( P.4-6 "[A] Paper feeder unit")

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

the pickup roller.

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.

Shaft Pin

Clip Pickup roller

Fig.4-17

T.B.D.

[C] Feed roller [PM]

(1) Take off the paper feeder unit.

( P.4-6 "[A] Paper feeder unit")

(2) Remove 1 clip.

Lock Lock

Fig.4-18

Clip

T.B.D.

Fig.4-19

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Page 42

(3) Slide the pulley and remove 1 pin.

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

T.B.D.

Pulley

Fig.4-20

Feed roller

Shaft

Note: Note:

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

Fig.4-21

T.B.D.

Lock Lock

Fig.4-22

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Page 43

[D] Separation roller [PM]

(1) Take off the paper feeder unit.

( P.4-6 "[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 Screw

Fig.4-23

Separation roller unit Screw

Screw

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

the separation roller.

Separation roller holder

Fig.4-24

Separation roller

T.B.D.

Clip

Fig.4-25

Bushing

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Page 44

[E] Feeder lower guide

(1) Take off the original tray.

( P.4-4 "[E] Original tray")

(2) Take off the paper feeder unit.

( P.4-6 "[A] Paper feeder unit")

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

(4) Take off the jam access guide.

Stay

Fig.4-26

Jam access guide

(5) Remove 4 screws. Disconnect 1 connector

and take off the feeder lower guide.

Fig.4-27

Feeder lower guide

Fig.4-28

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Page 45

[F] Registration roller

(1) Take off the feeder lower guide.

( P.4-10 "[E] Feeder lower guide")

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

( P.4-21 "[E] Original feed motor drive section")

(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.

[G] Exit/reverse roller

(1) Take off the front cover.

( P.4-1 "[A] Front cover")

(2) Take off the original exit/reverse motor.

( P.4-23 "[F] Original exit/reverse motor (M3)")

(3) Remove 1 clip, 1 pulley, 1 pin and 1 bushing

from the rear side of the exit/reverse roller shaft.

Bushing

Pulley

E-ring

Bushing

Fig.4-29

Registration roller

Bushing

E-ring

Bushing

Pulley

Clip

Fig.4-30

(4) Remove 1 screw and take off the leaf spring. (5) Remove 1 clip and 1 bushing from the front

Leaf spring

side of the exit/reverse roller shaft.

Bushing

Fig.4-31

June 2005 © TOSHIBA TEC MR-3018 DISASSEMBLY AND ASSEMBLY

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Clip

Page 46

(6) Take off the jam access guide.

(7) Pull out the exit guide.

Jam access guide

Fig.4-32

Exit guide

(8) Take off the exit/reverse roller.

Fig.4-33

Exit/reverse roller

Fig.4-34

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Page 47

[H] Pre-reading lower guide / pre-reading upper 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 4 screws and take off the pre-read-

ing lower guide.

(6) Disconnect 2 connectors. Remove 2 screws

and take off the pre-reading upper guide.

Pre-reading lower guide

Fig.4-35

[I] Intermediate transport roller

(1) Take off the pre-reading upper guide.

( P.4-13 "[H] Pre-reading lower guide / pre-reading upper guide")

(2) Take off the read motor drive section.

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

(3) Remove 1 bushing, 1 E-ring, 1 pulley, 1 pin

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 upper guide

Fig.4-36

Bushing

E-ring

Pulley

Bushing

Intermediate transport roller

Fig.4-37

Bushing

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Page 48

[J] Pre-reading roller

(1) Take off the pre-reading upper guide.

( P.4-13 "[H] Pre-reading lower guide / pre-reading upper guide")

(2) Take off the read motor drive section.

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

(3) Remove 1 bushing and 1 E-ring from the rear

side of the pre-reading roller shaft. Loosen 2 setscrews and take off 1 flange. Then take off 1 pulley and 1 bearing.

Flange

(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] Platen roller / post-reading roller

(1) Take off the pre-reading lower guide.

( P.4-13 "[H] Pre-reading lower guide / pre-reading upper guide")

(2) Disconnect 1 connector.

Bushing

Pre-reading roller

E-ring

Fig.4-38

Fig.4-39

Pulley

Bushing

Bearing

Clip

Connector

Fig.4-40

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Page 49

(3) Take off the read motor drive section.

( P.4-19 "[C] 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.

Bearing

(5) Remove 1 clip 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

Flange

Fig.4-41

Bushing Clip

Fig.4-42

Holder Screw

Screw

Fig.4-43

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Platen guide

ScrewHolder

Page 50

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

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

(8) Take off the platen roller and post-reading

roller.

Post-reading upper guide

Fig.4-44

Post-reading roller

Platen roller

[L] Reverse registration roller

(1) Take off the platen roller and post-reading

roller. ( P.4-14 "[K] Platen roller / post-reading roller")

(2) Remove 1 E-ring, 1 pulley, 1 pin and 1 bush-

ing from the rear side of the reverse registration roller shaft.

Bushing

Pin Bushing

E-ring

Fig.4-45

Pulley

Fig.4-46

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Page 51

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

side of the reverse registration roller shaft.

(4) Open the RADF. Take off the reverse regis-

tration roller.

Bushing Clip

Fig.4-47

Reverse registration roller

Fig.4-48

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4.3 Motor / Motor drive section

[A] Fan motor (M4)

(1) Take off the rear cover.

( P.4-2 "[B] Rear cover")

(2) Disconnect 1 connector. Then remove 2

screws to take off the fan motor.

[B] Read motor (M2)

(1) Take off the rear cover.

( P.4-2 "[B] Rear cover")

(2) Take off the fan motor.

( P.4-18 "[A] Fan motor (M4)")

(3) Disconnect 1 connector. Then remove 2

screws to take off the read motor.

Connector

Screw

Fan motor

Fig.4-49

Connector

Screw

Fig.4-50

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Read motor

Page 53

[C] Read motor drive section

(1) Take off the rear cover.

( P.4-2 "[B] Rear cover")

(2) Take off the fan motor.

( P.4-18 "[A] Fan motor (M4)")

(3) Disconnect 1 connector, and then remove 1

spring. (Spring: Outside diameter of coil – ø10.2 mm, active coils – 12.5)

(4) 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.

Spring

Read motor

Connector

Fig.4-51

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

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

(6) Release the harness from 2 harness clamps.

Screw

Harness clamp

Spring

Fig.4-52

Harness clamp

Fig.4-53

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Page 54

(7) Remove 3 screws and then take off the

bracket.

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

(9) Loosen 1 screw of the belt tensioner. (10) Remove the E-ring, and then take off the pul-

ley and timing belt.

Note: Note:

When the unit is being assembled, first install the parts removed at steps (5), (6), (7) and (9), and attach the spring removed at step (4) next. Then tighten the screw loosened at step (8).

Screw

Timing belt

Bushing

E-ring

Bracket

Fig.4-54

Fig.4-55

Tensioner

Timing belt

E-ring

Fig.4-56

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Page 55

[D] Original feed motor (M1)

(1) Take off the rear cover.

( P.4-2 "[B] Rear cover")

(2) Disconnect 1 connector. Then remove 2

screws to take off the original feed motor.

[E] Original feed motor drive section

(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)

Connector

Original feed motor

Fig.4-57

Connector

Spring

Fig.4-58

(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.

Original feed motor

Fig.4-59

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Page 56

(4) Release the harness from 3 harness clamps. (5) Remove 1 E-ring and take off the bushing.

(6) Disconnect 2 terminals of the switch. (7) Remove 4 screws, and then take off the

bracket.

Bushing

E-ring

Bracket

Screw

Fig.4-60

Harness clamp

Brown

Red

(8) Take off the timing belt, bushings and pulley.

Screw Screw

Fig.4-61

Pulley

Bushing Timing belt

Fig.4-62

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Page 57

[F] Original exit/reverse motor (M3)

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

( P.4-21 "[E] Original feed motor drive section")

(2) Disconnect 1 connector from the RADF con-

trol PC board.

(3) Remove 2 screws, and then take off the orig-

inal exit/reverse motor with its bracket.

Fig.4-63

Original exit/reverse motor

(4) Remove 2 screws, and then take off the orig-

inal exit/reverse motor by sliding it from the bracket.

Fig.4-64

Bracket

Original exit/reverse motor

Fig.4-65

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Page 58

4.4 Solenoid

[A] Original pickup solenoid (SOL1)

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

( P.4-21 "[E] Original feed motor drive section")

(2) Disconnect one connector. Remove 2

screws and take off the original pickup solenoid with the bracket.

(3) Remove 2 screws and take off the original

pickup solenoid from the bracket.

Screw

Original pickup solenoidConnector

Fig.4-66

Original pickup solenoid

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.

Bracket

Fig.4-67

Mark-off line

Fig.4-68

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Page 59

[B] Gate solenoid (SOL2)

(1) Take off the original pickup solenoid.

( P.4-24 "[A] Original pickup solenoid (SOL1)")

(2) Disconnect one connector. Remove 2

screws and take off the gate solenoid with the bracket.

(3) Remove 2 screws and take off the gate sole-

noid from the bracket.

Screw

Gate solenoid

ScrewConnector

Fig.4-69

Gate solenoid

Note: Note:

When installing the gate solenoid, be sure to align the edge of the bracket with the markoff line on the frame.

Fig.4-70

Mark-off line

Fig.4-71

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Page 60

4.5 Sensor/switch

[A] Original tray width sensor (S2)

(1) Take off the original reverse tray.

( P.4-5 "[F] Original reverse tray")

(2) Remove 2 screws. Release 8 latches and

separate the original tray into 2 parts.

(3) Remove 1 screw and take off the original tray

width sensor.

Fig.4-72

Original tray width sensor

Fig.4-73

[B] Original tray sensor (S1)

(1) Take off the original reverse tray.

( P.4-5 "[F] Original reverse tray")

(2) Remove 2 screws. Release 8 latches and

separate the original tray into 2 parts.

Fig.4-74

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Page 61

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

(4) Release 2 latches and take off the original

tray sensor.

Holder

Fig.4-75

Original tray sensor

[C] Jam access cover sensor (S11)

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

cover.

Fig.4-76

Metal plate cover

Fig.4-77

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Page 62

(3) Disconnect 1 connector. Release 2 latches

and take off the jam access cover sensor.

[D] Original empty sensor (S3)

Jam access cover sensor

Fig.4-78

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

cover.

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

Metal plate cover

Fig.4-79

Bracket

Fig.4-80

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Page 63

(4) Disconnect 1 connector. Release 2 latches

and take off the original empty sensor.

[E] Original length detection sensor (S4)

Original empty sensor

Fig.4-81

(1) Take off the feeder lower guide.

( P.4-10 "[E] Feeder lower guide")

(2) Disconnect 1 connector. Release 2 latches

and take off the original length detection sensor.

[F] Original registration sensor (S5)

(1) Take off the feeder lower guide.

( P.4-10 "[E] Feeder lower guide")

(2) Disconnect 1 connector. Release 2 latches

and take off the original registration sensor.

Original length detection sensor

Fig.4-82

Original registration sensor

Fig.4-83

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Page 64

[G] Original width detection sensor-1 (S6)

(1) Take off the feeder lower guide.

( P.4-10 "[E] Feeder lower guide")

(2) Take off the actuator. (3) Disconnect 1 connector. Release 2 latches

and take off the original width detection sensor-1.

[H] Original width detection sensor-2 (S7)

(1) Take off the feeder lower guide.

( P.4-10 "[E] Feeder lower guide")

(2) Take off the actuator. (3) Disconnect 1 connector. Release 2 latches

and take off the Original width detection sensor-2.

Actuator Original width detection sensor-1

Fig.4-84

Actuator Original width detection sensor-2

Fig.4-85

[I] Read sensor (S9)

(1) Take off the pre-reading upper guide.

( P.4-13 "[H] Pre-reading lower guide /

Read sensor

pre-reading upper guide")

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

sor from the pre-reading upper guide.

Fig.4-86

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Page 65

[J] Intermediate transport sensor (S8)

(1) Take off the pre-reading upper guide.

( P.4-13 "[H] Pre-reading lower guide / pre-reading upper guide")

(2) Release 2 latches and take off the intermedi-

ate transport sensor from the pre-reading upper guide.

Intermediate transport sensor

Fig.4-87

[K] Original exit/reverse sensor (S10)

(1) Take off the pre-reading lower guide.

( P.4-13 "[H] Pre-reading lower guide / pre-reading upper guide")

(2) Disconnect 1 connector.

(3) Open the RADF. Remove 2 screws, and then

take off 2 holders and platen guide.

Connector

Fig.4-88

Holder Screw

Platen guide

ScrewHolder

Fig.4-89

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Page 66

(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/reverse sensor from the post-reading upper guide.

Post-reading upper guide

Fig.4-90

Original exit/reverse sensor

[L] RADF opening/closing sensor (S12)

(1) Take off the rear cover.

( P.4-2 "[B] Rear cover")

(2) Disconnect 1 connector. Release 2 latches

and take off the RADF opening/closing sensor.

Fig.4-91

RADF opening/closing sensor

Fig.4-92

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Page 67

[M] Jam access cover opening/closing switch (SW1)

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

drive section. ( P.4-21 "[E] Original feed motor drive section")

(2) Disconnect 2 terminals. Remove 1 screw

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

Screw

Bracket

Screw

Fig.4-93

Jam access cover opening/closing switch

Brown

Red

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Page 68

4.6 PC Board

[A] RADF control PC board (ADF board)

(1) Take off the rear cover.

( P.4-2 "[B] Rear cover")

(2) Disconnect 11 connectors.

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

Take off the ADF board.

Fig.4-94

ADF board

Fig.4-95

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Page 69

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.4-96

Fig.4-97

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Page 70

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Page 71

5. Adjustment

5.1 Adjustment of Position

Perform this adjustment when the RADF 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 RADF. (See the Service Handbook of the applicable equipment.)

[A] Checking

(1) Open the RADF 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 RADF).

(2) Remove the platen sheet.

Fig.5-1

Fig.5-2

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5 - 1

Page 72

(3) Close the RADF and check if the positioning

pins fit the holes on the RADF.

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) Loosen the left-hand hinge screw at the rear

side.

Fig.5-5

5 - 2

Page 73

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

(4) Position the pins with the holes on the RADF

by moving it so that the pins fit into the holes when the RADF is closed.

Fig.5-6

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

side.

Fig.5-7

Fig.5-8

5 - 3

Page 74

(6) Loosen the hole position adjustment screws

on the right hand side.

(7) Match the screw hole positions.

Fig.5-9

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

side.

Fig.5-10

Fig.5-11

5 - 4

Page 75

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

(10) Place the platen sheet on the original glass

and align it to the top left corner. Close the RADF gently and open it to check if the platen sheet is attached properly.

Fig.5-12

Fig.5-13

5 - 5

Page 76

5.2 Adjustment of Height

Note: Note:

Check if the image adjustment for the equipment is performed properly before this adjustment of the RADF. (See the Service Handbook of the applicable equipment.)

[A] Checking

(1) Close the RADF. (2) Light the exposure lamp.

• Turn the power ON while pressing [0] and [3] simultaneously.

• 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 - 0.5 mm Front side: 0 mm

0~0.5mm

Fig.5-14

5 - 6

0mm

Page 77

[B] Adjustment

(1) Close the RADF. (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 RADF.

Turn it clockwise ................. Heightened

Turn it counterclockwise ...... Lowered

Fig.5-15

• Adjust the gap on the rear side by means of the screw on the hinge on the feed side of the RADF.

Turn it clockwis .................... Lowered

Turn it counterclockwise ...... Heightened

Fig.5-16

5 - 7

Page 78

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.5-17 Chart (Original)

Simplex copying:

(1) Place the chart provided as an original with its face up on the original tray of the RADF, 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.

Duplex copying:

(1) Place the chart provided as an original with its face up on the original tray of the RADF, select [2

Sided -> 2 Sided] and press the [START] button.

(2) Superimpose the chart on the copy and check the inclination of the copy image.

5 - 8

Page 79

[B] Adjustment Simplex copying:

(1) Shift the aligning plate with the scale as the guide shown in the figure below to adjust the skew.

Fig.5-18

(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 "-".

Fig.5-19

Shift the aligning plate in the direction of "+". Shift the aligning plate in the direction of "-".

Fig.5-20

5 - 9

Page 80

Duplex copying:

(1) Shift the aligning plate with the scale as the guide shown in the figure below to adjust the skew.

Fig.5-21

(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 "+".

Fig.5-22 Fig.5-23

Shift the aligning plate in the direction of "-". Shift the aligning plate in the direction of "+".

5 - 10

Page 81

5.4 Adjustment of the Leading Edge Position

Note: Note:

[A] Checking Check the image using the chart (original) with vertical and horizontal lines in the following procedure.

Simplex copying:

(1) Place the chart provided as an original with its face up on the original tray of the RADF, 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.

Duplex copying:

(1) Place the chart provided as an original with its face up on the original tray of the RADF, select [2

Sided -> 2 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.

Fig.5-24 Chart (Original)

[B] Adjustment

Simplex copying:

(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 0.1 mm.

Fig.5-25 Copy

• 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 0.1 mm.

(3) Press the [ENTER] button.

5 - 11

Page 82

Duplex copying:

(1) Turn the power ON while pressing [0] and [5] simultaneously, key in [366] 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 0.1 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: Note:

Changing one value shifts the copy image by 0.1 mm.

(3) Press the [ENTER] button.

5 - 12

Page 83

5.5 Adjustment of Horizontal Position

Note: Note:

[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 RADF. (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.

Fig.5-26

• 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.

Fig.5-27

(3) Press the [ENTER] button.

5 - 13

Page 84

5.6 Adjustment of Copy Ratio

Note: Note:

[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 RADF. (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.

Fig.5-28

(3) Press the [ENTER] button.

5 - 14

Page 85

5.7 Adjustment of RADF 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.5-29

Fig.5-30

5 - 15

Page 86

5 - 16

Page 87

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 RADF 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 - 1

Page 88

6.2 Troubleshooting for Electrical Errors

1) RADF 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 RADF 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 RADF board and check the equipment

4) Size detection error Original tray sensor is ON when there is paper?

↓

NO→ Replace the sensor or harness

YES Registration roller does not catch the original? ↓ YES→ Clean the roller with alcohol or replace NO Original width detection sensor-1 is ON when there is paper? ↓ NO→ Replace the sensor or harness YES Original width detection sensor-2 is ON when there is paper? ↓ NO→ Replace the sensor or harness YES Check or replace the RADF board

6 - 2

Page 89

5) Abnormality of fan motor Is there a foreign matter in the fan motor?

↓

YES→ Remove the extraneous material

NO Fan harness connected properly? ↓ NO→ Connect the fan harness properly or replace it YES Power supplied at CN84-1pin when FAN is ON? ↓ YES→ Replace the fan motor NO Check or replace the RADF board

6 - 3

Page 90

6 - 4

Page 91

7. MAINTENANCE AND REWRITING ROM

7.1 Periodic Maintenance

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.

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

Item to check

1 Pickup roller A 120

2 Separation roller A 120

3 Feed roller A 120

4 Registration roller A

5 Intermediate transfer roller A

6 Front read roller A

7 Platen roller A

8 Rear read roller A

9 Reverse registration roller A

10 Exit/reverse roller A

11 Platen sheet B or A

Cleaning

(30K)

Lubrica-

tion/

Coating

Replace-

ment

(x1,000)

Operation

check

Parts list

(P-I)

Remarks

7 - 1

Page 92

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 RADF 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 RADF rear cover.

* If rewriting data is failed, turn OFF the power and repeat the procedure.

Connector

Fig.7-2

7 - 2

Page 93

8. CIRCUIT DIAGRAM / HARNESS DIAGRAM

8.1 Assembly of PC Board

• Component side

• Soldered side

Fig.8-1

Fig.8-2

8 - 1

Page 94

8.2 Circuit Diagram

PWA-F-DLM-320

DOWNLOAD JIG

+24V

+24VSG+5V

DGDG+5V

J42

SC-REQ

CONECT

DF-ACK

DF-REQ

RXD

1234567

TXDSGSC-ACK

SCAN-ST

+5V

LED

A17A5A11A7A13

33343025262728

+5V

LED

DLCNT

[ 17

]

A15

[

]

GSOL-ON

+24V

GSOL-ON

+24V

J99 J99

[

]

PSOL-OFF

PSOL-ON

CN79

J79

PSOL-OFF

PSOL-ON

J98 J98

[ 3

]

+24V

123

[ 1

]

+24V

DLCS

[

]

D3SGA18

CN81

[

]

[ 18

]

A2,B2

A14

A16A4A8

A10

A12

131415161718192021

[

]

CN78

J78

[ 8

]

123456789

TXDSGSC-ACK

SCAN-START

JAM-COM

JAM-NO

CN72

J72

SCANNER I/F

PWA-F-DLG-623

OESGA0

[

]

12345

[ 0

]

MRD

[ 8

]

[ 4

]

[ 2

]

ACCM

D0D2D4

123456789

[ 0

]

A (-)

CN77

J77

BCOM

B (-)

12345

+24V

ACCM

POWER

SUPPLY

1234567

SC-REQ

DF-REQ

+24V

J71

CN71

DF-ACK

RXD

DF-COM

DF-NO

J70

CN70

+5V

BCOM

(-)

CN76

J76

12345

DFCNT

( SG

)

FANON

+24V

CN84

J84

FANON

J69

65432

(-)

J69

Fan motor

COM

COMNONC

SW1

Jam access cover

opening/closing switch

SOL2

Gate solenoid

SOL1

Original pickup solenoid

BCOM

ACCM

(-)

123

A2,B2

Original exit/reverse

motor

65432

J65

Read motor

BCOM

ACCM

(-)

J66

Original feed motor

8 - 2

Page 95

PWA-F-DLG-623

CN83

CN82

CN80

MID-S

+5V

READ-S

+5V

EXIT-S

+5V

CN75

J75

JCOVU-S

+5V

J92

Not used

EMPTY-S

+5V

123456789

65432

12345

DFOPEN-S

Not used

+5V

LENGTH-S

LENGTH

+5V

Not used

WIDTH1-S

CN74

J74

+5V

WIDTH1

+5V

J86 J86

789

WIDTH2-S

+5V

WIDTH2

987654321

456

+5V

ALIGN-S

+5V

123456789

ALIGN

+5V

123

TWIDTH2-S

TWIDTH0-S

TWIDTH1-S

CN73

J73

TLENGTH-S

+5V

1234567

+5V

READ-S

+5V

J94

123

Read sensor

MID-S

J95

123

Original intermediate

transport sensor

EXIT-S

+5V

J93

123

S10

Original exit/reverse

sensor

JCOVU-S

J97

S11

Jam access cover

sensor

EMPTY-S

+5V

123

+5V

123

J96

Original empty sensor

LENGTH

+5V

J91

DFOPEN-S

J87

S12

RADF opening/closing

sensor

123

+5V

123

Original length

detection sensor

detection sensor-1

WIDTH1

+5V

123

J90

detection sensor-2

Original width

WIDTH2

J89

Original width

ALIGN

+5V

123

J88

Original registration

sensor

+5V

Orenge

Yellow

Black

Gray

GKY

Original tray

width sensor

TLENG-S

+5V

123

J85

Original tray sensor

8 - 3

Page 96

8.3 Control PC Board Circuit

8 - 4

Page 97

8 - 5

Page 98

8 - 6

Page 99

8 - 7

Page 100

8 - 8

Toshiba MR-3018 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

3.1.4 Original exit/reverse 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 Drive Circuit for Exit Motor

3.4.4 Drive Circuit for FAN Motor

3.4.5 Reset Circuit

3.4.6 Drive Circuit for Pickup Solenoid

3.4.7 Drive Circuit for Gate 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 RADF Opening/Closing Sensor

6. Troubleshooting

6.1 Troubleshooting for Mechanical Errors

6.2 Troubleshooting for Electrical Errors

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