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2K3/2L3
1-4-22
(1) No image appears (entirely white).
(2) No image appears (entirely black).
Print example
Causes
Check procedures/corrective measures
Defective
transfer
bias output.
Defective connector cable
or poor contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
High voltage PWB and engine PWB (YC10)
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-36).
Defective engine PWB.
Replace the engine PWB (see page 1-5-34).
Defective
developer
bias output.
Defective connector cable
or poor contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
High voltage PWB and engine PWB (YC10)
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-36).
Defective engine PWB.
Replace the engine PWB (see page 1-5-34).
No LSU
laser is out-
put.
Defective laser scanner
unit.
Replace the laser scanner unit
(see page 1-5-23).
Defective main PWB.
Replace the main PWB (see page 1-5-33).
Print example
Causes
Check procedures/corrective measures
No main
charging.
Defective connector cable
or poor contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
High voltage PWB and engine PWB (YC10)
Defective charger roller unit. Replace the charger roller unit
(see page 1-5-19).
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-36).
Defective engine PWB.
Replace the engine PWB (see page 1-5-34).
Exposure
lamp fails to
light.
Defective connector cable
or poor contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
LED PWB and main PWB (YC112)
CCD PWB and main PWB (YC113)
Defective CCD PWB.
Replace the image scanner unit
(see page 1-5-24).
Defective main PWB.
Replace the main PWB (see page 1-5-33).
Содержание 255b
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Страница 222: ...2K3 2L3 2 1 18 Figure 2 1 23 Duplex conveying section block diagram EPWB DU_REG DU_CL_REM YC1 5 YC3 3 DUCL DUS...
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Страница 281: ...Installation Guide Paper feeder Installation Guide...
Страница 282: ...2010 9 303NN56710 1 2 3 5 2 4 5 1 6 7 2 1 1 PF 470 471 PAPER FEEDER PF 470 PF 471 PF 470 PF 471...
Страница 283: ...11 12 13 14 13 14 2010 9 303NN56710 8 9 10...
Страница 284: ...Document finisher Installation Guide...
Страница 286: ...8 6 7 9 5 8 10 2010 9 305JS56710 G F E Black White MFP 25 30 Color MFP 20 25 D C...
Страница 287: ...FAX System U Installation Guide...
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