Field Service Ver. 1.0 Jun. 2008
19. Image quality problem
331
T
roubleshooting
19.3.10
Scanner system: low image density, rough image
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C516DA
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
Step
Section
Check item
Result
Action
1
Original glass
Original Glass is dirty.
YES
Wipe the surface clean with a
soft cloth.
2
Shading sheet
Shading sheet is dirty.
YES
Wipe the surface clean with a
soft cloth.
3
Mirror, lens, expo-
sure lamp, and
reflectors
Mirror is dirty.
YES
Clean.
4
Lens is dirty.
YES
Clean.
5
Exposure lamp is dirty.
YES
Clean.
6
Reflectors are dirty.
YES
Clean.
7
The problem has been eliminated
through the checks of steps up to 6.
NO
Clean exposure lamp.
o
Change exposure unit.
d
-Color
M
F
201
Y109660-1 Sevice Manual