Panasonic DX-600 Service Manual page 114

4.4.7. Dark Background
Is the printout in Service
Mode 3 normal?
Is the recording paper damp?
Is the Toner Cartridge
operational?
Is the Laser Unit (LSU) normal?
Is the Power Supply Unit
normal?
Are the Fuser and Pressure
Roller surfaces clean?
Edition 1.0
START
Yes
No
Yes
No
No
Yes
No
Yes
No
Yes
No
Yes
END
114
P
Check the Scanner mechanism.
Replace the recording paper.
Replace the Toner Cartridge.
Replace the Laser Unit (LSU).
1. Check all connectors and
voltages on the Power Supply
Unit.
2. Check the Connector and
voltages on the Power
Supply Unit.
3. Replace the Power Supply Unit.
Clean or replace the rollers.
DX-600/800
APR 2002