Ricoh Aficio FX10 Service Manual page 208

June 10th, 1997
7.1.2. Black Copies
Possible Cause (Scanner)
•
The contact image sensor is defective.
•
The xenon lamp, or the xenon lamp driver is defective.
Action:
1. Check the connection between the FCU (CN60) and the contact image
sensor.
2. Do the ADF lamp test (service function 10) and check that the xenon
lamp is working properly.
3. Check that the two springs which push up the contact image sensor
against the exposure glass are correctly installed.
4. 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 development unit and the
CTM, and the charge wire are properly connected or not.
•
If they are, go to step 2.
•
If not, fix the connections.
2. Check if the zener diode is not shorted.
•
If the zener diode is shorted, replace the zener diode.
•
If it is not, go to step 3.
3. Check the connections behind the power pack.
COPY QUALITY TROUBLESHOOTING
7-3
TROUBLESHOOTING