Poor Printed Copy Quality - Panasonic UF-585 Service Manual

Panasonic UF-585 / 595

4.4.14 Poor Printed Copy Quality

Is the printout in Service Mode 3
normal?
Make a local copy.
Is the printed copy correct?
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START
Yes
Yes
Perform a receiving test with the
reference fax unit.
Is the received copy correct?
Yes
Is a poor copy printed when
receiving from a specific
transmitter?
Yes
The transmitting machine may be
defective.
END
No
1. Replace the LPC PCB.
2. Replace the LSU.
3. Replace the HVPS.
4. Replace the Toner Cartridge.
No
Check the Transmission Block
(CN30 on the CCD PCB and
CN4 on the SCA/SCB PCB).
No
1. Check CN8 on the SCA/SCB PCB.
2. Check CN25 on the LCU PCB.
3. Check the Telephone Line Cable.
4. Replace the SCA/SCB PCB.
No
Telephone line quality is poor.
(Refer to Sect. 4.6.)