Flatbed Scanner And Adf Communications Failure Service Check - Lexmark MX81 Series Service Manual

Error code Description
842.xx A communication failure has occurred
between the controller and the
ADF/scanner.
843.00 The flatbed scanner carriage home
position is not detected by the sensor
(flatbed scanner home position).
843.07 The ADF elevator tray home position is not
detected by the sensor (ADF elevator tray
home position).
843.15 The ADF elevator tray has stalled.
843.18 The ADF elevator tray motor did not turn
off at the appropriate time.
845.02 An error has occurred during the
initialization process with the flatbed
scanner CCD.
845.03 An error has occurred during the
initialization process with the ADF scanner
CCD.

Flatbed scanner and ADF communications failure service check

Action
Step 1
Check all connections for proper connectivity on the flatbed scanner
controller board, ADF controller board, and all connections on the
controller board in the printer.
Are the above connections properly connected?
Step 2
Perform a flatbed scanner test.
Does the problem remain?
Step 3
Perform an ADF scanner test.
Does the problem remain?
Action
See "Flatbed scanner and ADF communications failure service
check" on page
See "Flatbed scanner home position error service check" on
page 135.
See "ADF elevator tray home position error service check" on
page 136.
See "ADF elevator tray motor stalled error service check" on
page 137.
See "ADF elevator tray motor time-out error service check"
on page 137.
See "Flatbed scanner CCD initialization error service check" on
page 139.
See "ADF scanner CCD initialization error service check" on
page 139.
Yes
Go to step 2.
Replace the flatbed
scanner controller
board. See
scanner PCBA
removal" on page
515.
Replace the ADF
controller board. See
"ADF controller card
removal" on page
454.
Diagnostic information
134
134.
No
Replace connections.
Problem solved.
"Flatbed
Replace the
connection.
7463