ELECTRICAL COMPONENT DEFECTS
SM 4-23
B156/B220
Trouble-
shooting
4.4 ELECTRICAL COMPONENT DEFECTS
4.4.1 SENSORS
Component
(Symbol)
CN Condition
Symptom
Open
A paper jam is detected when paper is fed; and
the paper jam is cleared when the paper is
removed
Fusing exit
sensor
324
(I/O board)
Shorted A paper jam is detected when paper is not fed.
Open
No immediate symptom is seen. (
NOTE)
ID sensor
260
(BICU)
Shorted
•
The machine does not respond.
•
No immediate symptom is seen. (
NOTE)
Open
SC481 is displayed.
Image transfer
belt mark
sensor
307
(I/O board)
Shorted SC481 is displayed.
Open
Bottle full is not detected when the bottle is full.
O/B waste
toner bottle full
sensor
307
(I/O board)
Shorted No symptom is seen.
Open
No immediate symptom is seen.
Oil end sensor
261
(BICU)
Shorted
The oil pump turns on to pump oil up when there
is enough oil.
Open
SC571 is displayed.
Oil overflow
sensor
261
(BICU)
Shorted SC571 is displayed.
Open
The original size is not correctly detected. Output
images are blurred.
Original length
sensor 1
632
(SBU)
Shorted
The original size is not correctly detected. Output
images are blurred.
Open
The original size is not correctly detected. Output
images are blurred.
Original length
sensor 2
632
(SBU)
Shorted
The original size is not correctly detected. Output
images are blurred.
Open
The original size is not correctly detected. Output
images are blurred.
Original width
sensor
632
(SBU)
Shorted
The original size is not correctly detected. Output
images are blurred.
Open
Paper end is not detected when the tray is
empty.
Paper end
sensor 1
406 (High
voltage
supply)
Shorted
Paper end is detected when the tray is not
empty.
Open
Paper end is not detected when the tray is
empty.
Paper end
sensor 2
308
(I/O board)
Shorted
Paper end is detected when the tray is not
empty.
Open
A paper jam is detected when paper is fed.
Paper exit
sensor
324
(I/O board)
Shorted A paper jam is detected when no paper is fed.
Open
A paper jam is detected when paper is fed; and
the paper jam is not cleared when the paper is
removed.
Paper feed
sensor 1
406
(High voltage
supply)
Shorted
A paper jam is detected when paper is fed; and
the paper jam is not cleared when the paper is
removed. Or, a paper jam is detected before
paper is fed.
Содержание B156
Страница 1: ...B156 B220 SERVICE MANUAL 002350MIU...
Страница 2: ......
Страница 3: ...B156 B220 SERVICE MANUAL...
Страница 4: ......
Страница 5: ...B156 B220 SERVICE MANUAL 002350MIU...
Страница 6: ......
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...
Страница 526: ......
Страница 528: ......
Страница 549: ...B480 1 BIN TRAY UNIT...
Страница 550: ......
Страница 552: ......
Страница 557: ...B481 INTERCHANGE UNIT...
Страница 558: ......
Страница 560: ......
Страница 565: ...B482 BRIDGE UNIT...
Страница 566: ......
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...
Страница 754: ......
Страница 756: ......