Lexmark X422 Laser MFP Service Manual page 48

7001–001
Scanner / copier symptom table
Symptom
Machine boots, but LCD posts a
"Scanner Locked Power off and
Restart" attendance message.
Documents don't feed into ADF.
Scanner jam (290) error.
Paper feeds into ADF, but jams in
the ADF. Error 290 generated.
ADF runs paper through, but no
copy is made. Error 290
generated.
Scanner does not respond to
scan command from attached
computer.
2-10
Service Manual
Action
1. Check whether scanner CCD is
locked.
2. Perform scanner service check.
See "Scanner/copier service
check" on page 2-47
information.
1. Check for dirty sensors.
2. Check the paper present sensor
(using the scanner sensor test in
diagnostics). Replace as
necessary.
3. Check continuity of scanner –
ADF motor cable.
– If good, replace ADF motor.
– If bad, replace ADF motor
cable.
Perform ADF service check. See
"ADF service check" on page 2-19
for more information.
Perform ADF service check. See
"ADF service check" on page 2-19
for more information.
Perform USB service check. See
"USB service check" on page 2-48
for more information.
for more