Lexmark X940e Service Manual page 201

Step
2 Check the ADF rolls for wear.
Is the ADF feed/pick roll assembly or the ADF separation
roll guide assembly free of excess wear?
3 Check the media path for contaminates.
Is the media path free of excess media dust and foreign
objects such as paper clips and staples?
4 Check the sensor (ADF inverter) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch SCANNER TESTS.
3. Touch Sensor Tests.
4. Touch ADF inverter.
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 inverter) for proper connection.
Is the above component properly connected?
6
Check the ADF registration motor for proper operation.
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Scanner Motor Tests.
4. Touch ADF registration drv mtr.
5. Touch Forward or reverse.
Does the above component operate properly?
7 Check the ADF registration motor for proper connection.
Is the above component properly connected?
Check Yes
Go to step 3. Clean or replace
the ADF feed/pick
roll assembly or
the ADF
separation roll
guide assembly.
Go to
pick roll
assembly
removal" on
page 4-139
"ADF separation
roll guide
assembly" on
page
Go to step 4. Remove all
contaminates from
the media path.
Go to step 6. Go to step 5.
Replace the Replace the
sensor (ADF connection.
inverter).
Go to "Sensor
(ADF inverter)
removal" on
page 4-148.
Go to step 8. Go to step 7.
Replace the ADF Replace the
registration motor. connection.
Go to "ADF
registration
motor removal"
on page 4-156.
Diagnostic information
7510-XXX
No
"ADF feed/
or
4-152.
2-87