Vertical Dark Lines - Panasonic DP-1820P Service Manual

4.3.5.

Vertical Dark Lines

Is the Test Pattern printout in
Copier F1 Mode or Fax
Service Mode 3 normal?
Is the OPC Drum/Developer
Unit operational?
Is the LSU normal?
Are the Fuser and Pressure
Roller surfaces clean?
Ver. 1.2
START
No
Yes
No
Yes
No
Yes
No
Yes
END
P
Check the Scanner mechanism.
Replace the OPC Drum/Developer Unit.
Replace the LSU.
Clean or replace the rollers.
125
DP-1520P/1820P/1820E
SEP 2004