Action:
1. Check whether the toner saving feature has not been selected with the
user parameters. (If it has been selected, there is no problem.)
2. Print a test pattern, and open the cover in the middle of printing.
3. Check if the toner on the paper at the entrance of the fusing unit looks
faint or not.
•
If it does, check or replace the fusing lamp, thermistor, and PSU.
•
If it does not, go to step 4.
4. Check if the toner on the drum looks faint or not.
•
If it does, go to step 5.
•
If it does not, check the contacts between the transfer bias terminals
and power pack.
5. Check if the toner on the development roller looks faint or not.
•
If it does, check all the contacts between the development and toner ap-
plication rollers’ bias terminals.
•
If it does not, try replacing the CTM and drum.
August 2nd, 1995
TROUBLESHOOTING
COPY QUALITY TROUBLESHOOTING
6-13
