Scanner/Copier Service Check - Lexmark X422 Laser MFP Service Manual

Scanner/copier service check

FRU
CCD
FFC (CCD) cable assembly
SCU card assembly
Action
1. Open the flatbed cover and restart
the MFP.
If the CCD illuminates but does
not move, check pins 2 and 5 on
CN6 on the SCU card for +24V.
• If it passes, replace the flatbed
motor.
• If it fails, replace the SCU.
If the CCD lamp fails to illuminate,
but the CCD moves, check the
FFC cable connector on the SCU.
Pins 16, 17, 21, and 22 should
measure +12V.
If it passes, check the cable
continuity.
– Continuity, replace the CCD.
– No continuity, replace the
cable.
If the lamp illuminates and the
CCD moves, perform the CCD
home sensor test. See
"Diagnostic mode menu
settings" on page 3-6
information.
• If the test fails, replace the CCD.
Diagnostic information
7001–001
for more
2-47