Printed Copy Quality Problems - Panasonic UF-890 Service Manual

4.4

Printed Copy Quality Problems

4.4.1 Black Copy
START
Is the printout in Service Mode 3
normal?
No
Is the Toner Cartridge
operational?
Yes
Is the HVPS normal?
Yes
Is the LPC PCB normal?
Yes
END
Yes
Check the Scanner mechanism.
No
Replace the Toner Cartridge.
No
1. Check all connectors and
voltages on the HVPS.
2. Check the contacts between HVPS
and Toner Cartridge.
3. Replace the HVPS.
No
1. Check all connectors and
voltages on the LPC PCB.
2. Replace the LPC PCB.
132