Vertical Dark Lines - Panasonic UF-6300 Service Manual

4.4.5.

Vertical Dark Lines

Is the Toner Cartridge
operational?
Are there any foreign particles
or stains on the BTR?
Is the Laser Unit (LSU)
normal?
Are the Fuser, and Pressure
Roller surfaces clean?
START
Is the printout in Service
Mode 3 normal?
No
Yes
No
Yes
Yes
END
P
Yes
Check the Scanner mechanism.
No
1. Clean the Corona Wire as
illustrated below.
2. Replace the Toner Cartridge.
Yes
1. Clean the BTR with a soft, dry
cloth.
2. Replace the BTR.
No
Replace the Laser Unit (LSU).
No
Clean, or replace the rollers.
99