SERVICE CALL
SM 4-7
B156/B220
Trouble-
shooting
No.
Definition
Symptom Possible
Cause
Transfer belt mark detection error
481 D
•
The main motor is operating or
changes its speed.
→
The lock
signal is detected.
→
The belt mark
sensor signal is not detected for 0.2
second in normal speed mode or
0.4 second in half speed mode.
•
Defective main motor
•
Image transfer belt out of position
•
Belt mark blurred or absent
3rd tray error
503 B
•
The tray lift motor turns on.
→
The
top of the paper stack is not
detected for 18 seconds.
•
The tray is set.
→
The top of the
paper stack is detected.
→
The
bottom plate is lowered.
→
The
stack detection is not cleared within
7 seconds.
→
These steps are
repeated 4 times.
•
Defective paper height sensor
•
Defective tray lift motor
4th tray error
504 B
•
The tray lift motor turns on.
→
The
top of the paper stack is not
detected for 18 seconds.
•
The tray is set.
→
The top of the
paper stack is detected.
→
The
bottom plate is lowered.
→
The
stack detection is not cleared within
7 seconds.
→
These steps are
repeated 4 times.
•
Defective paper height sensor
•
Defective tray lift motor
Duplex unit communication error
515 D
•
A connection error occurs.
•
The signal is sent from the copier to
the duplex unit every 3 seconds
while paper is not transported by
the unit. However, the duplex unit
does not respond within 5 seconds.
•
Defective duplex unit board
•
Defective BICU
•
Defective IOB
•
Defective connection (Main unit -
Duplex unit)
Fusing unit motor
520 D
•
The motor starts or changes speed.
→
The lock signal does not
continue for 1 second within a 3-
second interval.
•
The motor starts.
→
The lock signal
is detected and operation proceeds
normally.
→
The lock signal is
interrupted for 1 second.
•
Defective fusing unit motor
Paper feed motor error
521 D
•
The motor starts or changes speed.
→
The lock signal does not
continue for 1 second within a 3-
second interval.
•
The motor starts.
→
The lock signal
is detected and operation proceeds
normally.
→
The lock signal is
interrupted for 1 second.
•
Defective paper feed motor
Содержание B156
Страница 1: ...B156 B220 SERVICE MANUAL 002350MIU...
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Страница 3: ...B156 B220 SERVICE MANUAL...
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Страница 5: ...B156 B220 SERVICE MANUAL 002350MIU...
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Страница 8: ......
Страница 10: ......
Страница 26: ......
Страница 27: ...INSTALLATION...
Страница 28: ......
Страница 102: ......
Страница 103: ...PREVENTIVE MAINTENANCE...
Страница 104: ......
Страница 111: ...REPLACEMENT AND ADJUSTMENT...
Страница 112: ......
Страница 116: ...SCANNER UNIT B156 B220 3 4 SM B156R999 JPG...
Страница 189: ...TROUBLESHOOTING...
Страница 190: ......
Страница 227: ...SERVICE TABLES...
Страница 228: ......
Страница 364: ......
Страница 365: ...DETAILED DESCRIPTIONS...
Страница 366: ......
Страница 449: ...SPECIFICATIONS...
Страница 450: ......
Страница 461: ...1000 SHEET FINISHER B408...
Страница 462: ......
Страница 464: ......
Страница 489: ...B456 PAPER TRAY UNIT...
Страница 490: ......
Страница 492: ......
Страница 505: ...B457 LARGE CAPACITY TRAY...
Страница 506: ......
Страница 508: ......
Страница 525: ...B458 500 SHEET FINISHER...
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Страница 528: ......
Страница 549: ...B480 1 BIN TRAY UNIT...
Страница 550: ......
Страница 552: ......
Страница 557: ...B481 INTERCHANGE UNIT...
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Страница 560: ......
Страница 565: ...B482 BRIDGE UNIT...
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Страница 568: ......
Страница 576: ......
Страница 577: ...B490 BY PASS TRAY UNIT...
Страница 578: ......
Страница 580: ......
Страница 588: ......
Страница 589: ...B509 DUPLEX UNIT...
Страница 590: ......
Страница 592: ......
Страница 597: ...Duplex Unit B509 DRIVE LAYOUT SM 5 B509 2 3 DRIVE LAYOUT 1 Inverter motor 2 Transport motor B509D103 WMF 1 2...
Страница 601: ...B510 SHIFT TRAY UNIT...
Страница 602: ......
Страница 604: ......
Страница 611: ...B750 FAX OPTION TYPE 3232...
Страница 612: ......
Страница 753: ...B810 AUTO REVERSE DOCUMENT FEEDER...
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Страница 756: ......