Toshiba MJ5002 User Manual

General Precautions for Installation/Servicing/Maintenance for the MJ-5002

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

1. When installing the MJ-5002 to the Plain Paper Copier , be sure to f ollow the instructions described in the “Unpacking/Set-Up Procedure for the MJ-5002” booklet which comes with each unit of the MJ-5002.

2. The MJ-5002 should be installed by an authorized/qualified person.

3. Before starting installation, servicing or maintenance work, be sure to turn off and unplug the copier first.

4. When servcing or maintaining the MJ-5002, be careful about the rotating or operation sections such as gear, pulleys, sprockets, cams, belts , etc.

5. When parts are disassembled, reassembly is basically the rev erse 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 breakers, thermofuses, fuses, door switches, sensors, etc. if any) should be handled/installed/adjusted correctly.

8. Use suitable measuring instruments and tools.

9. During servicing or maintenance wor k, 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 copier and make sure that there is no uninsulated charged objects in the vicinity.

11. For the recovery and disposal of used MJ-5002, consumable parts and packing materials, it is recommended that the relev ant local regulations/rules should be follo wed.

12. After completing installation, servicing and maintenance of the MJ-5002, retur n the MJ-5002 to its original state, and check operation.

TOSHIB A TEC CORPORATION

1. SPECIFICATIONS....................................................................................................... 1-1

2. OUTLINE..................................................................................................................... 2-1

2.1 Names of Various Components........................................................................................ 2-1

2.2 Layout of Electrical Parts ................................................................................................. 2-2

2.3 Harness Connection Diagram .......................................................................................... 2-3

2.4 Board Assembly ............................................................................................................... 2-4

3. OPARATIONAL DESCRIPTION ................................................................................. 3- 1

3.1 General Operation............................................................................................................ 3-1

3.2 Block Diagram.................................................................................................................. 3-1

3.3 Detection of Abnormal Status ..........................................................................................3-2

3.3.1 Cover open/Close detection.................................................................................. 3-2

3.3.2 Paper jam detection .............................................................................................. 3-2

3.3.3 Stacker full detection............................................................................................. 3-2

3.4 Flow Charts...................................................................................................................... 3-3

4. MECHANICAL DESCRIPTION................................................................................... 4 - 1

4.1 Paper Feed System.......................................................................................................... 4-1

4.2 Paper Transport................................................................................................................ 4-1

4.3 Flap Function ................................................................................................................... 4-1

4.4 Drive System.................................................................................................................... 4-2

5. CIRCUIT DESCRIPTION ............................................................................................ 5-1

5.1 PWA Block Diagram......................................................................................................... 5-1

5.2 Meaning of Signals........................................................................................................... 5-2

5.3 Timing Charts............................................................................................................... .... 5-3

6. DISASSEMBLY AND REPLACEMENT...................................................................... 6- 1

October 2000 © T OSHIBA TEC 1 MJ-5002 CONTENTS

1. SPECIFICATIONS

Function : Exit roller moving type offset tray Paper : Size A3 to A5-R/LD to ST-R

(Offset possible size : A3, A4, A4-R/LD, LG, LT, LT-R)

: Thickness Normal paper 64 to 163g/m2 (17 to 43 lbs)

T ransport speed : 91.6 mm/sec. (DP1600 series) (Driven by copier) : 124.4 mm/sec. (DP2000/2500 series)

Loading capacity : Paper height : 39 mm (Approx. 250 sheets) Shift amount : Approx. 30 mm Dimensions : 500 (W) x 415 (D) x 169 (H) mm Weight : Approx. 3.1 kg Power supply : 5VDC, 24VDC (Supplied from copier)

October 2000 © T OSHIBA TEC 1 - 1 MJ-5002 SPECIFICATIONS

2. OUTLINE

2.1 Names of Various Components

OCT stack sensor (Arm)

OCT tray

OCT open cover

Separate roller assembly

OCT 02-01-01

October 2000 © T OSHIBA TEC 2 - 1 MJ-5002 OUTLINE

2.2 Layout of Electrical Parts

SEN1

SW1

OCT (PWA-F-OCT)

SEN2

SEN3

SOL1

Symbols and functions of various devices

Symbol

SW1

OCTCOV-SW

Name

OCT cover open switch

SEN1

PF-SEN OCT stack sensor

SEN2

INP-SEN OCT separate sensor

SEN3

OCTFED-SEN OCT paper feed sensor

OFS-MOT OCT motor

SOL1

OCTGATE-SOL OCT solenoid

OCT

PWA-F-OCT OCT PWA

OCT 02-02-01

Function Detects the open/close state of the cover during jam processing, etc. Detects the limit number of sheets stacked.

Detects the home position of the separator.

Detects the presence or absence of transport paper. Moves the separate unit right-to-left.

Switches the transport path (flap).

PWA which relays the sensor signals and solenoid drive signals and drives the motor.

MJ-5002 OUTLINE 2 - 2 October 2000 © T OSHIBA TEC

2.3 Harness Connection Diagram

CN330

OCT cover open switch

OCT stack sensor

321

CN331

123456789

VCC

JCOS

CN261

FLS1ON

1514131211

CN329

OCT motor

OFMOT2

OFMOT1

OCT PWA

987654312

OCT solenoid

CN333

1234567

+24V

JSSON

CN262

JOB-JAM

VCC

321

CN332

VCC

JFLS2

OCT paper feed sensor

OCT separate sensor

321

CN343

OCT

1514131211

CN322

123456789

PG 3

CN41 CN260

OFFSET1

OFFSET2 1

987654312

+24V

JSSON 5

JOB/JAM 7

JFLS2ON

1011121315

10F/SELECT

JOB/SW 9

JCOSON

12 12SG

15JPOSON

14+5V

FLS1ON 13

JCONECT 11

Relay PWA

OCT 02-03-01

2.4 Board Assembly

OCT 02-04-01 PPS2

3. OPARATIONAL DESCRIPTION

3.1 General Operation

The OCT has a function to stack printed sheets of paper by putting them in the right and left stackers. When fed to the OCT, printed paper can be stacked by putting it in the right or left stac k er . The offsetting section is moved to the right or left by the motor.

3.2 Block Diagram

OCT

Relay

PWA

CN41

CN260

JCOSON

JFLS1ON

CN261CN262

OFFSET-1,2

OCT

PWA

JSSON

JOB-JAM

JFLS2ON

OCT cover open switch

OCT stack sensor

OCT motor

OCT solenoid

OCT paper feed sensor

OCT separate sensor

OCT 03-02-01

Four detection switches , one solenoid, and one motor are connected to the OCT PWA. The motor drive signals only go through the driver IC (IC1) and the other signals connect to the RELAY PWA as they are. Those signals go through the RELAY PWA and connect to the MAIN PWA for control.

• At power-on time At power-on time, the OCT checks the home position of the separ ate roller assemb ly through control from the copier. If the sensor has not detected the home position at this time, the OCT motor is driven to move the separate roller assembly to the home position.

• During offset operation For offset stacking, the combination of the OFFSET1 and OFFSET2 signals allo ws the OCT motor to operate and move the separate roller assemb ly to the right or left. If specified f or a size of paper which cannot be offset, offset stacking will be ignored on the copier side.

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