December 21st, 1995TROUBLESHOOTING
COPY QUALITY TROUBLESHOOTING
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.
Trouble- shooting
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