Olivetti d-Copia 6500MF Plus Service Manual page 533

(2) No image appears (entirely black).
Print example
Defective part
Charging roller
1
High-voltage PWB
2
Laser scanner unit
(LSU)
3
Engine PWB
4
Main PWB
5
Y116520-3
1. No main charging.
2. The laser from the LSU is activated simultaneously.
Check description
Check whether the charging
roller is properly mounted.
Check whether the connecting
terminals of the charging roller
and high-voltage PWB are
deformed.
Check the connection of the con-
nectors. Or, verify conduction of
the wires.
Main charging current supplied
by the high-voltage PWB is
faulty.
Switching on and off the laser
diode on the LSU PWB is out of
control.
The engine PWB is detective.
The main PWB is defective.
Cause of trouble
If the charging roller is not fixed properly, fix the
roller properly.
If the connecting terminals are deformed,
correct for a proper conduction.
Reinsert the connector if its connection is
loose.
Replace the cable if it has no conduction.
High voltage PWB (YC 2) and engine PWB
(YC16): Charger
Replace the high-voltage PWB.
(see page 1-5-90)
Replace the LSU. (see page 1-5-49)
Replace the engine PWB.(see page 1-5-83)
Replace the main PWB.(see page 1-5-74)
1-4-205
Corrective Action
Service Manual
2N8/2N7