Solution - Olivetti d-Color MF201 Service Manual

Field Service Ver. 1.0 Jun. 2008

19.3 Solution

NOTE
• Typical faulty image samples shown in the following are all printed with A4S set-
ting.
19.3.1 Scanner system: white lines in sub scan direction, white bands in sub
scan direction, colored lines in sub scan direction, and colored bands in
sub scan direction
A. Typical faulty images
White lines in sub scan
direction
B. Troubleshooting procedure
(1) When the original glass is used
Step Section
1 Original
2 Original cover
Original glass
3
Shading sheet
4
Mirror, lens,
exposure lamp, and
5 reflectors
Machine Adjustment
Scan Area
6
adjustment
(Service Mode)
7
Y109660-1
White bands in sub
scan direction
Check item
Original is damaged or dirty.
Original pad is dirty.
Original glass is dirty.
Shading sheet is dirty.
Mirror is dirty
Lens is dirty
Exposure lamp is dirty
Reflectors are dirty
The adjustment value for [Feed]
Feed falls within the specified range.
The white lines/bands or colored
lines/bands are blurry.
Sevice Manual
19. Image quality problem
Color lines in sub scan Color bands in sub
direction scan direction
Result
YES Change original.
YES Clean.
YES Wipe the surface clean with
a soft cloth.
YES Wipe the surface clean with
a soft cloth.
YES Clean.
YES Clean.
YES Clean.
YES Clean.
NO Readjust.
YES Change exposure unit.
A02EF4C507DA
Action
321