2N8/2N7
1-4-162
(1) No image appears (entirely white).
1. Table scanning
Print example
Defective part Check description Corrective Action
1
Contact glass assy
Check the location the contact
glass is mounted.
Re-mount the contact glass if it is hanged off.
2
FFC cable CCD
Check the FFC cable between
the CCD sensor and ISC PWB is
properly connected. Or, verify
conduction of the wire.
Reinsert the connector if it its connection is
loose. Or, if conduction is lot, replace the wire.
3
Home position sen-
sor
Check the location the home
position sensor is mounted.
Re-mount the home position sensor if it is
hanged off.
4
Scanner wire drum Check that the scanner drive
gear is loosely mounted.
If the scanner wire drum is loosely mounted,
secure the screws.
5
Scanner drive gear Check that the scanner drive
gear is loosely mounted.
If the scanner drive gear loosely mounted,
secure the screw.
6
CCD PWB The CCD PWB is defective. Replace the ISU and perform U411.
(see page 1-3-152)
7
ISC PWB The ISC PWB is defective. Replace the ISC PWB and perform U411.
(see page 1-3-152)
8
Main PWB The main PWB is defective. Replace the main PWB.(see page 1-5-74)