Vertical Dark Lines - Panasonic UF-8300 Service Manual

4.3.5.

Vertical Dark Lines

P
Carefully wipe the Corona Wire in the Toner Cartri]ge by sliding a dry Cotton Swab
from end to end a few times.
START
Is the printout in Service
Mode 3 normal?
No
Is the Toner Cartridge
operational?
Yes
Are there any foreign particles
or stains on the BTR?
No
Is the Laser Unit (LSU)
normal?
Yes
Are the Fuser, and Pressure
Roller surfaces clean?
Yes
END
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.
105
UF-8300/8200
UF-7300/7200
Corona Wire