4. Alignment and Troubleshooting
5)
Light image
Description : The printed image is light, with no ghost.
Check and cause
Solution
Toner cartridge life is expired.
Replace the toner cartridge.
SMPS/HVPS terminal is contaminated.
Clean the contaminated terminal.
The output from the SMPS/HVPS is abnormal.
Replace the SMPS/HVPS board.
6)
Dark or Black page
Description : The printed image is dark or black.
Check and cause
Solution
Check if the high voltage terminal is contaminated.
Clean the high voltage terminal.
The charging roller is defective.
Replace the toner cartridge.
The output from the SMSP/HVPS is abnormal.
Replace the SMPS/HVPS board.
7)
Uneven Density
Description : Print density is uneven between left and right.
Check and cause
Solution
•
The pressure force on the left and right springs of the
transfer roller is not even.
•
The springs are damaged.
•
The transfer roller is improperly installed.
1) Remove the transfer roller.
2) Check if the transfer roller is defective.
3) Replace the transfer roller.
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