154
JAN 2006
Ver. 5.2
DP-3510/3520/3530/4510/4520/4530/6010/6020/6030
4.3.3. Vertical White Lines
START
END
Replace the recording paper.
Yes
No
Replace the OPC/Developer Unit.
Are there any foreign particles
or stains blocking the Laser
Beam path?
No
1. Clean the Corona Wire
with a soft, dry cloth.
2. Replace the Corona Unit.
Yes
No
Clean or replace the rollers.
Yes
No
Check the Scanner mechanism.
No
Yes
Yes
Is the recording paper damp?
Is the OPC/Developer Unit
operational?
1. Remove the particles from
the laser beam path or clean the stains.
2. Replace the LSU.
Are there any foreign particles
or stains in the Corona Unit?
No
Yes
Are the Fuser and Pressure
Roller surfaces clean?
Paper Travel
P
Is the Test Pattern printout in
Copier F1 Mode or Fax
Service Mode 3 normal?