Poor Printed Copy Quality - Panasonic DX-2000 Service Manual

4.4.14. Poor Printed Copy Quality

Is the printout in 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 when
receiving from a specific
transmitter?
The transmitting machine may be
defective.
START
No
Yes
No
Yes
No
Yes
No
Yes
END
160
1. Replace the LPC PCB.
2. Replace the LSU.
3. Replace the HVPS.
4. Replace the Toner Cartridge.
Check the Transmission Block
(CN30 on the CCD PCB and
CN5 on the FCB PCB).
1. Check CN3 on the FCB PCB.
2. Check CN25 on the LCU PCB.
3. Check the Telephone Line Cable.
4. Replace the FCB PCB.
Telephone line quality is poor.
(Refer to Sect. 4.6.)