Light Print - Panasonic UF-490 Service Manual

4.4.8.

Light Print

Is the printout in Service
Mode 3 normal?
Is the recording paper damp?
Is the Toner Cartridge/
Drum Unit Assembly operational?
Are there any foreign particles or
stains blocking the Laser Unit
path?
Is the Power Supply Unit normal?
Are the Fuser and Pressure Roller
surfaces clean?
START
No
No
Yes
No
Yes
Yes
END
Yes
Check the Scanner mechanism.
Yes
Replace the paper.
No
Replace the Toner Cartridge/
Drum Unit Assembly.
Yes
1. Remove the particles from the
laser beam path or clean the stains.
2. Replace the LSU.
No
1. Check all connectors and
voltages on the Power Supply Unit.
2. Replace the Power Supply Unit.
No
Clean or replace the rollers.
95