Service manual

192
SEP 2006
Ver. 1.1
DP-8020E/8020P/8016P
4.3.5. Vertical Dark Lines
START
Yes
No
Check the Scanner mechanism.
Is the OPC Drum/Developer
Unit operational?
Yes
No
Replace the OPC Drum/Developer Unit.
Is the LSU normal?
No
Yes
Replace the LSU.
END
No
Yes
Clean, or replace the rollers.
Paper Travel
P
Are the Fuser, and Pressure
Roller surfaces clean?
Is the Test Pattern printout in
Copier F1 Mode, or Fax
Service Mode 3 normal?