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2NP-5
1-4-76
(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 of the connector cable. If necessary,
replace the cable.
High voltage PWB and engine PWB (YC6)
High voltage PWB sub and engine PWB (YC7)
Defective high voltage
PWB.
Replace the high voltage PWB.
(see page 1-5-39)
Defective high voltage PWB
sub.
Replace the high voltage PWB sub.
Defective engine PWB.
Replace the engine PWB (see page 1-5-33).
Defective
developer
bias output.
Defective connector cable
or poor contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity of the connector cable. If necessary,
replace the cable.
High voltage PWB and engine PWB (YC6)
Defective high voltage
PWB.
Replace the high voltage PWB.
(see page 1-5-39)
Defective engine PWB.
Replace the engine PWB (see page 1-5-33).
No LSU
laser is out-
put.
Defective laser scanner
unit.
Replace the laser scanner unit
(see page 1-5-20).
Defective engin PWB.
Replace the engine 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 (YC6)
Defective charger roller unit. Replace the charger roller unit
(see page 1-5-15).
Defective high voltage
PWB.
Replace the high voltage PWB.
(see page 1-5-39)
Defective engine PWB.
Replace the engine PWB (see page 1-5-33).
Y1
16
1
41-8
Se
r
vice Manual
Summary of Contents for d-Color MF2552 plus
Page 1: ...SERVICE MANUAL Multifuction Digital Copier d Color MF2552 plus Code Y116141 8...
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Page 24: ...Y116141 8 Service Manual...
Page 86: ...2NP 1 1 2 62 This page is intentionally left blank Y116141 8 Service Manual...
Page 298: ...2NP 1 3 212 This page is intentionally left blank Y116141 8 Service Manual...
Page 458: ...2NP 1 5 56 This page is intentionally left blank Y116141 8 Service Manual...
Page 482: ...2NP 2 1 22 This page is intentionally left blank Y116141 8 Service Manual...
Page 540: ...2NP 2 3 48 This page is intentionally left blank Y116141 8 Service Manual...
Page 569: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide...
Page 605: ...DP 773 Document processor Installation Guide...
Page 631: ...PF 791 500 x 2 Paper feeder Installation Guide...
Page 639: ...PF 810 3000 sheets deck Installation Guide...
Page 652: ...DF 770 D Document finisher Installation Guide...
Page 670: ...AK 740 Bridge unit Installation Guide...
Page 672: ...PH 7A C D Punch unit Installation Guide...
Page 693: ...DT 730 B Document tray Installation Guide...
Page 695: ...5 2013 5 302LC56750 01 H F G D D 6 4 3 7 E C D D M4 8 M4 8 M4 8 M4 8...
Page 696: ...FAX System W B Installation Guide...