Symptom Tables; Printer Symptom Table - Lexmark C720 Service Manual

5024-001

Symptom Tables

Printer Symptom Table

Symptom
Operator Panel buttons do not
work
Operator Panel display is blank,
printer beeps 5 times
Operator Panel continuously
displays all diamonds and beeps
5 times
Operator Panel display is blank,
but printer does not beep
Paper Feed problem with the
base printer, including paper jam
201 and 202
Close Door displayed when all
doors are closed
Printer does not reset or change
User Settings
Paper Jam Messages do not rest
after removing paper
Toner Cartridge does not turn or
does not put toner on the OPC
Belt Cartridge
The Developer Motor (DM) makes
noise or continuously runs
2-32
Service Manual
Action
Go to "Operator Panel Service
Check" on page
Go to "Operator Panel Service
Check" on page
Go to "Operator Panel Service
Check" on page
Replace the operator panel
assembly.
Go to "Paper Feed Service
Checks" on page
23x see "Duplex Paper Feed
Service Check" on page
24x see "Lower Feed Unit Paper
Feed Service Check" on
page 2-79.
Go to "Operator Messages" on
page 2-9 and follow the action to be
taken.
Go to "Operator Messages" on
page 2-9 and follow the action to be
taken.
Go to "Operator Messages" on
page 2-9 and follow the action to be
taken.
Go to "Toner Feed Service Check"
on page 2-75.
Go to "910—Developer Motor (DM)
Drive Service Check" on
page 2-45.
2-70.
2-70.
2-70.
2-77.
2-81.