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Field Service Ver. 2.0 Jul. 2009
22. IMAGE QUALITY PROBLEM
863
TROUBLESHOOTING
(2) When the ADF is used
Step
Section
Check item
Result
Action
1
Original
Original is damaged or dirty.
YES
Change original.
2
ADF reading section
Glass is dirty.
YES
Clean.
3
ADF scanning guide
ADF scanning guide is damaged
or dirty.
YES
Clean.
4
Shading sheet
Shading sheet is dirty.
YES
Wipe the surface clean with
a soft cloth.
5
Mirror, lens, expo-
sure lamp, and reflec-
tors
Mirror is dirty
YES
Clean.
Lens is dirty
YES
Clean.
Exposure lamp is dirty
YES
Clean.
Reflectors are dirty
YES
Clean.
6
ADF
o
Original Stop
Position
(Service Mode)
The adjustment value for [Main
Scanning Direction] falls within
the specified range.
NO
Readjust.
7
Glass step sheet
for the original glass
moving unit
The glass step sheet is tilted.
YES
Readjust.
8
ADF read position
The white lines/bands or colored
lines/bands occurs when reading
the original from ADF.
YES
Readjust.
9
The white lines/bands or colored
lines/bands are blurry.
YES
Change exposure unit.
Change CCD unit.
Y110571-1 Service Manual
Содержание d-color MF651
Страница 1: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Страница 24: ...MEASURES TO TAKE IN CASE OF AN ACCIDENT S 22 Blank Page...
Страница 27: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Страница 511: ...Field Service Ver 2 0 Jul 2009 10 UTILITY 451 ADJUSTMENT SETTING Blank Page Y110571 1 Service Manual...
Страница 716: ...16 MECHANICAL ADJUSTMENT Field Service Ver 2 0 Jul 2009 656 ADJUSTMENT SETTING Blank Page Service Manual Y110571 1...
Страница 1053: ...UPDATING STATUS DATE UPDATED PAGES PAGES CODE 10 2009 1ST EDITION 1053053 Y110571 1...