19. Image quality problem
Field Service Ver. 1.0 Jun. 2008
322
T
roubleshooting
(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
Shading sheet
Shading sheet is dirty.
YES
Wipe the surface clean with
a soft cloth.
4
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.
5
Machine Adjustment
o
Scan Area
o
Feed
adjustment
(Service Mode)
The adjustment value for [Feed]
falls within the specified range.
NO
Readjust.
6
The white lines/bands or colored
lines/bands are blurry.
YES
Change exposure unit.
d-Color MF201
Service Manual Y109660-1