Olivetti d-Copia 6500MF Plus Service Manual page 501

(5) White streaks are printed vertically.
Print example
1. Table scanning
Defective part
Original document
1
Contact glass
2
Mirror
3
Lamp unit
4
Lamp unit
5
ISU
6
Shading plate
7
ISC PWB
8
CCD PWB
9
Main PWB
10
2. DP-scanning first (front) page
Defective part
Original document
1
Contact glass
2
Y116520-3
Check description
Check whether the original
document is dirty.
Check whether the contact glass
is dirty.
Check whether the mirrors are
dirty.
Check that the lamp unit is con-
taminated with dusts.
Check whether the LED cover is
hanged off.
Check whether the lens cover is
hanged off.
Check whether the shading plate
is dirty.
The ISC PWB is defective.
The CCD PWB is defective.
The main PWB is defective.
Check description
Check whether the original
document is dirty.
Check whether the contact glass
is dirty.
If the original document is dirty, replace.
If the contact glass is dirty, clean the contact
glass, and the bottom part of the shading plate.
If the mirrors are dirty, clean the three mirrors.
If dusts are observed on the lamp unit, remove
the dusts in the light paths.
Re-mount the LED cover if it is hanged off.
Re-mount the lens cover if it is hanged off.
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 1-3-50)
Replace the ISC PWB and perform U411.
(see page 1-3-152)
Replace the ISU and perform U411.
(see page 1-3-152)
Replace the main PWB.(see page 1-5-74)
If the original document is dirty, replace.
If the contact glass is dirty, clean the contact
glass, and the bottom part of the shading plate.
1-4-173
Corrective Action
Corrective Action
Service Manual
2N8/2N7