Scanner Unit Assembly Software Logic Error - Lexmark X940e Service Manual

Step
4 Check the sensor (ADF width APS 2) for proper connection.
Is the above component properly connected?
5 Check the sensor (ADF width APS 3) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch SCANNER TESTS.
3. Touch Sensor Tests.
4. Touch ADF width APS 3.
Does the display on the operator panel, change every time the
sensing area of the above sensor is interrupted or blocked?
6 Check the sensor (ADF width APS 3) for proper connection.
Is the above component properly connected?
7 Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?

846.12 Scanner unit assembly software logic error

Step
1 Check the software version for the scanner controller card
assembly.
Is the version of the software of the scanner controller card
assembly correct?
2 Perform a POR.
Does the error remain when the power is turned off/on?
Check
Check
Yes
Replace the Replace the
sensor (ADF connection.
width APS 2).
Go to "Sensor
(ADF width
APS 2)
removal" on
page 4-144.
Go to step 8. Go to step 7.
Replace the Replace the
sensor (ADF connection.
width APS 3).
Go to "Sensor
(ADF width
APS 3)
removal" on
page 4-145.
Replace the Go to step 8.
ADF controller
card assembly.
Go to "ADF
controller card
assembly
removal" on
page 4-135.
Yes No
Go to step 2. Upgrade the
software of the
scanner controller
card assembly.
Replace the Problem solved.
scanner
controller card
assembly.
Go to
"Scanner
controller card
assembly
removal" on
page 4-120.
Diagnostic information
7510-XXX
No
2-125