Poor Printed Copy Quality - Panasonic DP-8020E Service Manual

4.3.14. Poor Printed Copy Quality

Is the Test Pattern printout
in Copier F1 Mode, or Fax
Service Mode 3 normal?
Make a local copy.
Is the printed copy correct?
Perform a receiving test
with the reference fax unit.
Is the received copy correct?
Is a poor copy printed only
when receiving from a
specific transmitter?
The transmitting machine
may be defective.
Ver. 1.0
START
No
Yes
No
Yes
No
Yes
No
Yes
END
1. Replace the SPC PCB.
2. Replace the LSU.
3. Replace the PS.
4. Replace the Developer Unit.
Check the connections of
CN850 on the CCD PCB,
CN 55 on the SC PCB,
the Scanning Lamp.
1. Check CN390 on the FXB PCB.
2. Check CN22/25 on MJR PCB.
3. Check the Telephone Line Cord.
4. Replace the FXB PCB.
Telephone line quality is poor.
200
DP-8020E/8020P/8016P
SEP 2006