1-4-53
(5) White streaks are printed vertically.
1. Table scanning
2. DP-scanning
Print example
Defective part
Check description
Corrective Action
1
Original document
Check whether the original
document is dirty.
If the original document is dirty, replace.
2
Contact glass
Check whether the contact glass
is dirty.
If the contact glass is dirty, clean the contact
glass, and the bottom part of the shading plate.
3
Mirror
Check whether the mirrors are
dirty.
If the mirrors are dirty, clean the three mirrors.
4
Lamp unit
Check that the lamp unit is con-
taminated with dusts.
If dusts are observed on the lamp unit, remove
the dusts in the light paths.
5
ISU
Check whether the lens cover is
hanged off.
Re-mount the lens cover if it is hanged off.
6
Shading plate
Check whether the shading plate
is dirty.
If the shading plate is dirty, perform
maintenance mode U063 to modify the
shading position. If it does not cure, replace the
contact glass assembly.
(see page 1-5-16)
7
CCD PWB
The CCD PWB is defective.
Replace the ISU and perform U411.
(see page 1-3-54)
8
Control PWB
The control PWB is defective.
Replace the control PWB.(see page 2-2-12)
Defective part
Check description
Corrective Action
1
Original document
Check whether the original
document is dirty.
If the original document is dirty, replace.
2
Slit glass
Check whether the slit glass is
dirty.
If the slit glass is dirty, clean the slit glass, and
the bottom part of the shading plate.
3
Mirror
Check whether the mirrors are
dirty.
If the mirrors are dirty, clean the three mirrors.
4
Lamp unit
Check that the lamp unit is con-
taminated with dusts.
If dusts are observed on the lamp unit, remove
the dusts in the light paths.
Service Manual
Y116
540-5
Summary of Contents for d-Copia 4003MF
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