COPY QUALITY TROUBLESHOOTING
21 May, 1999
7-12
Action:
1. Print a test pattern, and open the cover in the middle of printing.
2. Check to see if the toner on the paper at the entrance of the fusing unit appears
faint.
•
If it does, check or replace the fusing lamp, thermistor, and PSU.
•
If it does not, go to step 3.
3. Check to see if the toner on the drum looks faint.
•
If it does, go to step 4.
•
If it does not, check the contacts between the transfer bias terminals and
power pack.
4. Check all the contacts between the development and toner application rollers'
bias terminals.
•
If it does not, try replacing the cartridge.
