2-22
Service Manual
5055-xxx
981 - Belt Up/Down Sensor Error
981 Service
Switch Error
Step
Questions/actions
Yes
No
1
Is engine code level 41D or
above.
Go to step 2.
Update the
printer with code
level 41D or
above.
If this dies not
resolve the
problem,
continue with
step 2.
2
Are connectors CN409 and
CN407 on the sensor board
connected properly?
Go to step 3.
Plug the
connectors in
securely.
3
Are connectors CN26 and
CN29 on the printer
controller board connected
properly?
Go to step 4.
Plug the
connector in
securely.
4
Remove the transfer belt.
Verify the belt up/down
sensor actuator flag is
properly installed, not
broken, and in the proper
position. Make sure the
sensor is fully snapped in
place and that the sensor
connector is fully seated.
Are these items correct?
Go to step 5.
If the sensor is
out of position or
disconnected,
properly install
the sensor and
securely connect
the sensor
connector.
If the sensor
actuator flag is
broken, replace
the belt up/down
changing shaft.
5
Clean the belt up/down
sensor. Does this fix the
problem?
Problem solved.
Go to step 5.
Summary of Contents for C91 Series
Page 15: ...Safety information xv 5055 xxx...
Page 50: ...1 34 Service Manual 5055 xxx...
Page 150: ...2 100 Service Manual 5055 xxx...
Page 212: ...3 62 Service Manual 5055 xxx...
Page 216: ...3 66 Service Manual 5055 xxx Path select gate...
Page 246: ...3 96 Service Manual 5055 xxx...
Page 304: ...4 58 Service Manual 5055 xxx 5 Loosen the thumbscrews as shown...
Page 308: ...4 62 Service Manual 5055 xxx 9 Loosen the thumbscrews as shown...
Page 356: ...5 2 Service Manual 5055 xxx Major parts diagram...
Page 358: ...5 4 Service Manual 5055 xxx Sensor and switch locations...
Page 359: ...Locations 5 5 5055 xxx...
Page 360: ...5 6 Service Manual 5055 xxx Component locations...
Page 368: ...5 14 Service Manual 5055 xxx Power source unit 1 board Power source unit 2 board CN106A CN01...
Page 371: ...Locations 5 17 5055 xxx Size sensor board...
Page 373: ...Locations 5 19 5055 xxx Electrical parts layout...
Page 374: ...5 20 Service Manual 5055 xxx Driving parts layout...
Page 375: ...Locations 5 21 5055 xxx Finisher locations...
Page 380: ...5 26 Service Manual 5055 xxx Finisher electrical parts...
Page 382: ...5 28 Service Manual 5055 xxx...
Page 386: ...7 2 Service Manual 5055 xxx Assembly 1 Covers 1 1 3 11 7 13 18 5 16 9 15 2 10 6 17 4 12 8 14 1...
Page 388: ...7 4 Service Manual 5055 xxx Assembly 2 Covers 2 1...
Page 390: ...7 6 Service Manual 5055 xxx Assembly 3 Covers 3 2 4 3 1 2 3...
Page 392: ...7 8 Service Manual 5055 xxx Assembly 4 Covers 4 1...
Page 394: ...7 10 Service Manual 5055 xxx Assembly 5 Covers 5 1...
Page 396: ...7 12 Service Manual 5055 xxx Assembly 6 Upper unit...
Page 398: ...7 14 Service Manual 5055 xxx Assembly 6 continued Upper unit...
Page 402: ...7 18 Service Manual 5055 xxx Assembly 8 Base 2 3 7 5 2 6 4 8 1 2 2 2...
Page 404: ...7 20 Service Manual 5055 xxx Assembly 9 Base 3 1 3 11 7 14 5 15 2 10 6 4 13 8 16 9 10 12 11...
Page 406: ...7 22 Service Manual 5055 xxx Assembly 10 Electrical...
Page 408: ...7 24 Service Manual 5055 xxx Assembly 10 continued Electrical...
Page 410: ...7 26 Service Manual 5055 xxx Assembly 11 Rip board 3 7 5 2 6 4 8 1...
Page 412: ...7 28 Service Manual 5055 xxx Assembly 12 Fuser unit 1...
Page 414: ...7 30 Service Manual 5055 xxx Assembly 13 Cassette 1 2 3...
Page 422: ...7 38 Service Manual 5055 xxx Assembly 16 Duplex unit 1...
Page 426: ...7 42 Service Manual 5055 xxx Assembly 18 High capacity feeder 1 3 11 7 5 9 2 10 6 4 12 8 1...
Page 428: ...7 44 Service Manual 5055 xxx Assembly 19 High capacity feeder 2 11 3 11 7 5 9 2 10 6 4 12 8 1...
Page 430: ...7 46 Service Manual 5055 xxx Assembly 20 High capacity feeder 3 3 7 5 9 2 6 4 8 1 3...
Page 434: ...7 50 Service Manual 5055 xxx Assembly 22 High capacity feeder 5 3 7 5 2 6 4 8 1 2 2 2 1 4 6...
Page 436: ...7 52 Service Manual 5055 xxx Assembly 23 High capacity feeder 6 3 7 5 2 6 4 8 1 7 3 2...
Page 438: ...7 54 Service Manual 5055 xxx Assembly 24 Finisher covers 3 11 7 13 5 9 15 2 10 6 4 12 8 14 1 2...
Page 446: ...7 62 Service Manual 5055 xxx Assembly 27 Finisher feed 2 2 3 7 5 6 4 8 1 7...
Page 452: ...7 68 Service Manual 5055 xxx Assembly 30 Finisher docking 1 3 2 4 1 1...
Page 454: ...7 70 Service Manual 5055 xxx Assembly 31 Finisher docking 2 3 7 5 2 6 4 1 1 1 1 3 3 3 8 8...
Page 466: ...7 82 Service Manual 5055 xxx Plain Washer Tapping Screw Screw...
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