2KJ/2KH
1-4-27
(3) Image is too light.
(4) Background is visible.
(5) A white line appears longitudinally.
Copy example
Causes
Check procedures/corrective measures
Insufficient toner.
If the display shows the message requesting toner replenish-
ment, replace the container.
Defective
transfer
charging
output.
The connector terminals
of the high voltage PWB
make poor contact.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Defective high voltage
PWB.
Check if transfer charging takes place when CN1-4 on the
high voltage PWB goes low while maintenance item U101 is
run. If not, replace the high voltage PWB.
Defective engine PWB.
Check if YC8-4 on the engine PWB goes low when mainte-
nance item U101 is run. If not, replace the engine PWB.
Dirty main charger wire.
Clean the wire or, if it is extremely dirty, replace the main
charger unit (see page 1-5-43).
Dirty main charger grid.
Clean the grid or, if it is extremely dirty, replace the main
charger unit (see page 1-5-43).
Copy example
Causes
Check procedures/corrective measures
The developing bias voltage is not
properly.
Replace the high voltage PWB and check for correct opera-
tion.
Dirty main charger wire.
Clean the wire or, if it is extremely dirty, replace the main
charger unit (see page 1-5-43).
Copy example
Causes
Check procedures/corrective measures
Dirty main charger wire.
Clean the wire or, if it is extremely dirty, replace the main
charger unit (see page 1-5-43).
Foreign matter in the developing unit.
Check if the magnetic brush is formed uniformly. Replace the
developing unit if any foreign matter (see page 1-5-44).
Dirty shading plate.
Clean the shading plate.
Содержание TASKalfa 181
Страница 1: ...SERVICE MANUAL Published in October 2009 842KJ112 2KJSM062 Rev 2 TASKalfa 181 TASKalfa 221 ...
Страница 4: ...This page is intentionally left blank ...
Страница 10: ...This page is intentionally left blank ...
Страница 14: ...2KJ 2KH This page is intentionally left blank ...
Страница 114: ...2KJ 2KH 1 3 74 This page is intentionally left blank ...
Страница 152: ...2KJ 2KH 1 4 38 This page is intentionally left blank ...
Страница 234: ...2KJ 2KH 2 1 18 Figure 2 1 19 Duplex section block diagram CPWB DUP PCSW IPPSWN YC5 5 YC1 YC7 DUPFCL ICLTN YC5 8 EPWB ...
Страница 292: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Страница 306: ...INSTALLATION GUIDE FOR DUPLEX UNIT ...
Страница 315: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Страница 327: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Страница 336: ...INSTALLATION GUIDE FOR FAX System R ...
Страница 351: ...INSTALLATION GUIDE FOR Scan System F B ...
Страница 354: ......
Страница 355: ......