
3–5
TROUBLESHOOTING IMAGE PROBLEMS
C. Troubleshooting Image Faults
1
The copy is too light. (halftone only)
Cause
AE adjustment
(wrong)
Developing
assembly (posi-
tion)
Developing
assembly
Scanner (dirt)
Photosensitive
drum
Step
1
2
3
4
5
Checks
Perform the Image Adjustment
Basic Procedure. Is the prob-
lem corrected?
Is the pattern print placed in
reverse (left/right) orientation?
Make copies in AE mode. Are
the images too light?
Are the rolls of the developing
assembly in firm contact with
the drum?
Is the coating of toner on the
developing cylinder even?
Clean the mirror, lens, and
dust-proofing glass. Is the
image corrected?
Yes/No
YES
YES
NO
NO
YES
NO
Action
End.
The image will become appre-
ciably light if the pattern print
is placed in reverse (left/right)
orientation. Be sure to place it
in correct orientation.
Perform AE adjustment.
1. In the case of ‘Image quality
priority’ mode, increase the
setting under ‘AE_DARK’ of
‘ADJSUT’ in service mode
(*3*).
2. In the case of ‘Speed priori-
ty’ mode, increase the set-
ting under ‘ABC_TBL’ under
‘ADJSUT’ in service mode
(*3*).
Check the developing assem-
bly locking lever, and check the
surface of the developing rolls
for foreign matter (toner).
Check the developing assem-
bly.
End.
Replace the drum unit.
Содержание GP215
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Страница 38: ...3 2 TROUBLESHOOTING IMAGE PROBLEMS ...
Страница 39: ...3 3 TROUBLESHOOTING IMAGE PROBLEMS ...
Страница 40: ...3 4 B Image Fault Samples ...
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Страница 87: ...6 1 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS 6 ...
Страница 90: ...6 4 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS B Motors Figure 6 602 M2 M1 M4 M3 M9 M5 M8 M7 M6 ...
Страница 92: ...6 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS C Fans Figure 6 603 FM6 FM5 FM2 FM3 FM1 FM4 ...
Страница 100: ...6 14 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS G Fax Related PCBs Figure 6 607 1 2 4 6 3 7 8 5 ...
Страница 105: ...6 19 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS 3 Composite Power Supply PCB Figure 6 610 ...
Страница 107: ...6 21 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS 5 CORE IP Board Figure 6 613 J503 J504 J510 J501 J502 ...
Страница 204: ...C GENERAL CIRCUIT DIAGRAM General Circuit Diagram 1 4 A 3 ...
Страница 205: ...General Circuit Diagram 2 4 A 4 ...
Страница 206: ...General Circuit Diagram 3 4 A 5 ...
Страница 207: ...General Circuit Diagram 4 4 A 6 ...
Страница 217: ...PRINTED IN JAPAN IMPRIME AU JAPON 0796S3 52 1 This publication is printed on 70 reprocessed paper ...