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Toshiba MY-1016, Service Manual

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Toshiba MY-1016 Service Manual Download Page 19

MY-1016 DISASSEMBLY AND REPLACEMENT

6 - 4

October 2000 © TOSHIBA TEC

[F] SFB clutch pulley/SFB flange wheel

1. Remove SFB hinge unit. (See Fig. 6-1 to 6-4)

2. Remove SFB document tray assembly.

(See Fig. 6-6)

3. Detach SFB feed cover.

(See Fig. 6-11 and 6-13)

4. Detach stop ring and remove bushing.

5. Release 3 clamps and detach the harness.

6. Remove one screw and detach the ground wire.

Fig. 6-15

7. Remove 2 screws, release 2 tabs, slide SFB

feed roller assembly in the direction of the ar-

row, and remove SFB clutch pulley assembly.

Note:

Before attaching the SFB feed roller assem-

bly, loosen 2 screws securing the SFB feed

roller fixing plate.

Attach the SFB brake pad assembly (See

Fig. 6-10), then fix the SFB feed roller fixing

plate in place.

Stop ring

Bushing

Screw

Ground wire

Clamp

Harness

Bushing

SFB clutch
pulley assembly

SFB feed roller
assembly

Screw

SFB clutch motor

254

Clamp

5. Remove 2 screws, release 2 tabs, and detach

SFB feed cover.

Fig. 6-14

SFB feed cover

Screw

SFB feed assembly

Screw

253

Fig. 6-16

255

4. Release SFB pad spring and remove SFB brake.

Note:

Clean the SFB brake pad with a cloth moist-

ened with alcohol by pressing hard, and go-

ing back and forth on the brake pad more

than 20 times.

Fig. 6-13

SFB brake

SFB pad spring

252

SFB brake pad

SFB feed roller
fixing plate

Summary of Contents for MY-1016

Page 1: ...STACK FEED BYPASS MY 1016 File No 31100017 ...

Page 2: ...asically 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 work be sure to check the serial No plate and other cautionary lab...

Page 3: ... Connection Diagram 2 3 3 OPERATIONAL 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 Paper jam detection 3 2 3 4 Flow Charts 3 3 4 MECHANICAL DESCRIPTION 4 1 4 1 Paper Feed System 4 1 4 2 Drive System 4 2 5 CIRCUIT DESCRIPTION 5 1 5 1 Meaning of Signals 5 1 5 2 Timing Chart 5 2 6 DISASSEMBLY AND REPLACEMENT 6 1 ...

Page 4: ...ler drop and paper feed roller method Paper Continuous feed 64 to 80g m2 17 to 21 lbs Single sheet feed 80 to 163g m2 21 to 43 lbs Transport speed 260 mm sec Max capacity 11 mm 100 sheets Dimensions 120 W x 485 D x 227 H mm Weight Approx 2 5 kg Power supply 5VDC 24VDC Supplied from copier ...

Page 5: ...October 2000 TOSHIBA TEC 2 1 MY 1016 OUTLINE 2 OUTLINE 2 1 Names of Various Components SFB 02 01 01 SFB pickup roller SFB document guide F SFB feed sensor Arm SFB document tray SFB document guide R ...

Page 6: ...SS SFB 02 02 01 Symbols and functions of various devices Name SET SEN SFB feed sensor MPU CLT SFB clutch PSS PWA SFB paper size sensor Function Detects the loading of paper Transmits driving force to the rollers to pick up and transport the paper Paper size detection Symbol SEN1 CL1 PSS ...

Page 7: ... 2 3 4 5 5 4 SFB feed sensor SFB CN302 CN303 3 2 1 SFB paper size sensor CN300 3 2 1 CN31 MPFCON1 SG 1 2 SG 24VSW 3 4 5V MPESON 5 6 MPSS2ON MPSS3ON 7 8 MPSS1ON 9 10 MPSS0ON 1 2 3 4 5 6 7 8 9 10 SG 11 12 MCONECT 11 12 CN304 12 11 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 11 12 SFB clutch 2 1 SFB 02 03 01 ...

Page 8: ...N PWA through the RELAY PWA The unit is controlled by the MAIN PWA 3 2 Block Diagram The SFB consists of the one switch one magnetic clutch and paper size sensor These signals connect to the MAIN PWA through the relay cable and RELAY PWA When the bypass feed is selected on the copier side and paper is placed in the SFB printing by the bypass feed is enabled CN31 MPES SFB feed sensor SFB paper size...

Page 9: ...n placed When you press the Start key on the copier after this sensor detects the presence of paper the SFB clutch turns ON to start feeding If the paper has not reached the feed sensor on the copier side for a fixed time after feeding begins the program will judge it to be paper jamming and stop feeding To reset the error state once remove the paper and turn the SFB feed sensor OFF ...

Page 10: ...riage Advance of carriage White shading Scanning of document Stop of carriage Exposure lamp OFF Retraction of carriage Stop of carriage End of process system control Polygon motor OFF Laser ON Transfer bias ON Transfer guide bias ON Laser OFF Transfer bias OFF Transfer guide bias OFF NG Paper jam E12 NG Paper jam E01 NG Paper jam E02 NO Service call C01 YES Polygon motor OK NO Service call CA1 OK ...

Page 11: ...Y 1016 OPERATIONAL DESCRIPTION 3 4 October 2000 TOSHIBA TEC A Charge bias OFF Main motor OFF Development bias OFF Separation bias OFF Discharge lamp OFF Process unit fan motor low speed rotation Standby ...

Page 12: ...er the arm of the SFB feed sensor is pushed in causing the sensor to turn ON paper present When you press the Start button on the copier to turn the gear on the copier side the gear of the SFB also turns and the SFB clutch turns ON causing the SFB pickup roller to lower and pull in the paper SFB 04 01 01 Flow of paper SFB pickup roller SFB feed sensor ...

Page 13: ...ion on the copier side is transmitted to the SFB feed roller The SFB pickup roller is connected to the SFB feed roller through the belt When the SFB feed roller turns the SFB pickup roller lowers and starts picking up When the paper is pulled in the SFB clutch turns OFF and the SFB pickup roller returns to its original position SFB 04 02 01 Flow of paper SFB clutch ...

Page 14: ... the tray of the SFB The brush attached to the paper width guide is touching the pattern on the PWA and one of the MPSS0 3 signals is detected according to the position to which the paper width guide is slid MPSS0 goes LOW at the narrowest position and MPSS3 at the widest position When each width sensor is at Low level that width is detected Since the detection areas overlap as shown below two sig...

Page 15: ...RCUIT DESCRIPTION 5 2 October 2000 TOSHIBA TEC SFB clutch SFB feed sensor Feed sensor 610ms 1 84s 2 65s SFB 05 02 01 The values are data reference values applicable when the A4 size paper is used 5 2 Timing Chart ...

Page 16: ...nd detach the ground wire Fig 6 2 4 Remove 2 screws release 2 hooks and remove SFB assembly Fig 6 3 B SFB hinge unit 1 Remove SFB cover See Fig 6 1 2 Release one clamp and detach the harness 3 Remove 2 screws slide SFB hinge unit in the direction of the arrow release one hook and re move SFB hinge unit Fig 6 4 Screw SFB cover Connector Screw Harness fixing plate Ground wire Screw SFB assembly Scre...

Page 17: ...Fig 6 4 4 Release the stud and remove SFB document tray assembly Fig 6 6 D SFB document tray upper SFB document tray lower SFB document tray support SFB PWA plate SFB document guide flange 1 Remove SFB document tray assembly See Fig 6 6 2 Remove 3 screws release 7 hooks and detach SFB document tray upper 3 Remove SFB document tray support Fig 6 7 Hook SFB hinge unit Screw Connector Stud SFB docume...

Page 18: ...SFB hinge unit See Fig 6 1 to 6 4 2 Remove SFB document tray assembly See Fig 6 6 3 Remove 4 screws release 2 tabs and remove SFB brake pad assembly Note For reassembly mount the screws in the order shown right Fig 6 12 Screw SFB pinion plate SFB PWA plate SFB document guide flange Screw SFB PWA plate SFB document guide flange Screw Screw SFB brake pad assembly 250 3 250 4 251 Notes 1 Put 0 2 gram...

Page 19: ...the SFB feed roller assem bly loosen 2 screws securing the SFB feed roller fixing plate Attach the SFB brake pad assembly See Fig 6 10 then fix the SFB feed roller fixing plate in place Stop ring Bushing Screw Ground wire Clamp Harness Bushing SFB clutch pulley assembly SFB feed roller assembly Screw SFB clutch motor 254 Clamp 5 Remove 2 screws release 2 tabs and detach SFB feed cover Fig 6 14 SFB...

Page 20: ... roller shaft assembly 1 Remove SFB hinge unit See Fig 6 1 to 6 4 2 Remove SFB document tray assembly See Fig 6 6 3 Detach SFB feed cover See Fig 6 11 and 6 13 4 Remove SFB feed roller assembly See Fig 6 14 and 6 15 5 Detach one connector loosen one screw and remove SFB clutch motor Fig 6 17 Fig 6 19 Connector Screw SFB clutch motor Screw Spring E ring Bushing SFB feed roller shaft assembly 256 25...

Page 21: ...e F Fig 6 20 259 5 Detach stop ring and remove clutch and SFB feed roller Fig 6 21 I SFB pickup roller 1 Remove SFB hinge unit See Fig 6 1 to 6 4 2 Remove SFB document tray assembly See Fig 6 6 3 Detach SFB feed cover See Fig 6 11 and 6 13 4 Remove the stop ring and take out the pickup roller shaft 5 Detach the pickup roller by releasing the timing belt 142 258 Stop ring SFB feed roller Clutch Fig...

Page 22: ...1 1 KANDA NISHIKI CHO CHIYODA KU TOKYO 101 8842 JAPAN ...

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