Ricoh infotec 3671F Service Manual page 166

July 30th, 1996
7.1.2. Black Copies
Possible Cause (Scanner)
•
The contact image sensor is defective.
Action:
1. Check the connection between the FCU (CN5) and the contact image
sensor.
2. Replace the contact image sensor.
Possible Cause (Printer)
•
The charge is not properly applied.
Action:
1. Check if all the charge bias terminals on the DTM are properly connected.
•
If they are, go to step 2.
•
If not, fix the connections.
2. Check the connctions behind the high voltage power supply.
If the problem still remains, replace the high voltage power supply.
.
COPY QUALITY TROUBLESHOOTING
7-3
TROUBLESHOOTING