2M4/2M5/2M6/2M7-1
1-4-11
(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 (YC1) and main PWB
(YC13)
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-18).
Defective main PWB. Replace the main PWB (see page 1-5-18).
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 (YC1) and main PWB
(YC13)
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-18).
Defective main PWB. Replace the main PWB (see page 1-5-18).
No LSU
laser is out-
put.
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.
APC PWB (YC1) and main PWB (YC5)
Defective laser scanner
unit.
Replace the laser scanner unit
(see page 1-5-15).
Defective main PWB. Replace the main PWB (see page 1-5-18).
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 (YC1) and main PWB
(YC13)
Defective charger roller. Replace the drum unit
(see page 2-4-6,2-4-13).
Defective high voltage PWB Replace the high voltage PWB
(see page 1-5-18).
Defective main PWB. Replace the main PWB (see page 1-5-18).
Defective
CIS sensor
Defective CIS sensor. Replace the scanner unit (see page 1-5-10).
Defective
laser scan-
ner unit.
Defective laser scanner
unit.
Replace the laser scanner unit
(see page 1-5-15).
To Next Page
Loading...
Need help?
General
