Lexmark X940e Service Manual page 219

Step
2 Check the sensor (sheet through) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch SCANNER TESTS.
3. Touch Sensor Tests.
4. Touch Sheet through.
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked?
3
Check the sensor (sheet through) for proper connection.
Is the above component properly connected?
4 Check the sensor (ADF pre registration) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch SCANNER TESTS.
3. Touch Sensor Tests.
4. Touch ADF pre registration.
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked?
5 Check the sensor (ADF pre-registration) for proper
connection.
Is the above component properly connected?
6 Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?
7 Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?
Check Yes
Go to step 4. Go to step 3.
Replace the Replace the
sensor (sheet connection.
through).
Go to "Sensor
(sheet through)
removal" on
page 4-155.
Go to step 6. Go to step 5.
Replace the Replace the
sensor (ADF pre- connection.
registration).
Go to "Sensor
(ADF pre-
registration)
removal" on
page 4-147.
Replace the ADF Problem solved.
controller card
assembly.
Go to "ADF
controller card
assembly
removal" on
page 4-135.
Go to step 7.
Replace the RIP Problem solved.
card assembly.
Go to "RIP card
assembly
removal" on
page 4-71.
Diagnostic information
7510-XXX
No
2-105