Panasonic Workio DP-C305, Service Manual

Page: 435 / 920

435
DP-C405/C305/C265
FEB 2008 Ver. 1.1
4.3.17. Poor Printed Copy Quality
START
Is the Test Pattern printout
in Copier F1 Mode, or Fax
Service Mode 3 normal?
1. Replace the EC PCB.
2. Replace the LSU.
3. Replace the HVPS.
4. Replace the Developer Unit.
END
Perform a receiving test
with the reference fax unit.
Is the printed copy correct?
Yes
No
Make a local copy.
No
Yes
Check the connections of
CN 56/57 on the SC PCB, and
the Scanning Lamp.
Is the received copy correct?
1. Check CN352/353 on the FCB PCB.
2. Check the Telephone Line Cord.
3. Replace the FCB PCB.
Yes
No
Is a poor copy printed only
when receiving from a
specific transmitter?
Yes
No
Telephone line quality is poor.
The transmitting machine
may be defective.