Panasonic UF-890 Service Manual page 139

4.4.8 Light Print
Is the printout in Service Mode 3
normal?
Is the recording paper damp?
Is the Toner Cartridge operational?
Are there any foreign particles or
stains blocking the Laser Unit
path?
Is the HVPS normal?
Are the Fuser and Pressure Roller
surfaces clean?
START
Yes
No
Yes
No
No
Yes
Yes
No
No
Yes
No
Yes
END
139
Check the Scanner mechanism.
Replace the paper.
Replace the Toner Cartridge.
1. Remove the particles from the laser
beam path or clean the stains.
2. Replace the LSU.
1. Check all connectors and
voltages on the HVPS.
2. Replace the HVPS.
Clean or replace the rollers.