Field Service Ver. 1.0 Jun. 2008
19. Image quality problem
335
T
roubleshooting
19.3.14
Scanner system: uneven density
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C520DA
Step
Section
Check item
Result
Action
1
Exposure unit
Exposure unit is not installed pre-
cisely.
YES
Reinstall.
2
Scanner motor
Scanner motor turns smoothly.
NO
Change timing belt.
Change scanner motor.
3
The problem has been eliminated
through the checks of steps up to 2.
NO
Change exposure unit.
d
-Color
M
F
201
Y109660-1 Sevice Manual