Toshiba MR-3018 User Manual

SERVICE MANUAL

REVERSING AUTOMATIC DOCUMENT FEEDER

MR-3018

File No. SME05000600 R05032183100-TTEC Ver00_2005-06

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.

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

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

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

1 - 1

MR-3018 Specification June 2005 © TOSHIBA TEC

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/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

2 - 1

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

2 - 2

2.3 Electric Parts Layout

SOL1

ADF

SOL2

SW1

S11

S12

S10

Fig.2-3

June 2005 © TOSHIBA TEC MR-3018 GENERAL DESCRIPTION

2 - 3

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.

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

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

2 - 5

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

2 - 6

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

3 - 1

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

3 - 2

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

3 - 3

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

3 - 4

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

3 - 5

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

3 - 6

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

3 - 7

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.

3 - 8

Jam

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 .

3 - 9

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.

3 - 10

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

3 - 11

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.

3 - 12

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

3 - 13

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

3 - 14

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

3 - 15

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

3 - 16

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