2NP
1-4-78
(6) Black streaks are printed vertically.
(7) Streaks are printed horizontally.
(8) One side of the print image is darker than the other.
Print example
Causes
Check procedures/corrective measures
Dirty contact glass.
Clean the contact glass.
Dirty slit glass.
Clean the slit glass.
Dirty or flawed drum.
Perform the drum refresh operation.
Flawed drum. Replace the drum unit (see page 1-5-15).
Deformed or worn cleaning
blade in the drum unit.
Replace the drum unit (see page 1-5-15).
Defective transfer belt.
Replace the intermediate transfer unit (see page 1-5-16).
Defective transfer roller.
Replace the transfer roller unit(see page 1-5-16).
Dirty scanner mirror.
Clean the scanner mirror.
Print example
Causes
Check procedures/corrective measures
Dirty or flawed drum.
Perform the drum refresh operation.
Flawed drum. Replace the drum unit (see page 1-5-15).
Dirty developer section.
Clean any part contaminated with toner in the developer
section.
Poor contact of grounding ter-
minal of drum unit.
Check the installation of the drum unit. If it operates incor-
rectly, replace it (see page 1-5-15).
Print example
Causes
Check procedures/corrective measures
Defective exposure lamp.
Replace the LED PWB (see page 1-5-28).
Содержание TASKalfa 2551ci
Страница 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
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Страница 259: ...2NP 1 3 162 U486 Details on the modes Figure 1 3 47 Item No Description ...
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Страница 496: ...2NP 2 1 21 Figure 2 1 25 Duplex conveying section block diagram EPWB DU_SW DU_CL_REM YC25 3 YC24 3 DUCL DUS ...
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Страница 544: ...2NP 2 3 37 2 3 5 IH PWB Figure 2 3 5 IH PWB silk screen diagram YC1 1 2 YC8 1 3 YC6 2 1 YC4 6 1 YC3 YC10 YC9 ...
Страница 555: ...2NP 2 3 48 This page is intentionally left blank ...
Страница 584: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Страница 620: ...DP 773 Document processor Installation Guide ...
Страница 646: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Страница 654: ...PF 810 3000 sheets deck Installation Guide ...
Страница 667: ...DF 770 D Document finisher Installation Guide ...
Страница 685: ...AK 740 Bridge unit Installation Guide ...
Страница 687: ...PH 7A C D Punch unit Installation Guide ...
Страница 708: ...DT 730 B Document tray Installation Guide ...
Страница 710: ...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 ...
Страница 711: ...FAX System W B Installation Guide ...