Xx-Scanner Failure-Communication Failure Service Check; Scanner Failure-Carriage Failed To Move Service Check - Lexmark X746de Service Manual

842.xx—Scanner Failure—Communication failure service check
Step Questions / actions
1. Check the scanner flex cable from the
1
scanner MDC card to the system board.
2. Remove the left cover. See
removal" on page
3. Remove the rear frame cover. See
frame cover removal" on page
Are both ends of the cable (A) seated?
Is the scanner flex cable damaged?
2
Replace the scanner MDC card. See
3
"Scanner ICC cable removal" on
page 4-260.
Is the problem fixed?
843.00—Scanner Failure—Carriage failed to move service check
Step Questions / actions
Check the flatbed motor cables. Remove the
1
flatbed with glass cover. See
glass cover removal" on page
Are either end of the cables (A, B) loose?
Go to step 2.
"Left cover
4-24.
"Rear
4-37.
Replace the scanner flex
cable.
Problem resolved.
Reseat the flatbed motor
cable.
"Flatbed with
4-219.
Yes
Reseat the scanner flex
cable.
Go to step 3.
Replace the system board.
See
"System board
removal" on page
Yes
Replace the flatbed
scanner. See
scanner removal" on
page 4-255
Diagnostic information
7526
Previous
No
Next
Go Back
4-157.
No
"Flatbed
2-105