Lexmark X850e Service Manual page 187

Step
7 Check the feed drive motor connection.
Is the above motor connected properly?
8 Check the sensor (sheet through) for operation.
Perform the sensor (sheet through) test.
Open the ADF left cover assembly.
Remove the ADF rear cover. Go to
removal" on page
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 blocked?
9 Check the sensor (sheet through) for connection.
Is the above sensor connected properly?
10 Check the feed drive motor connection.
Is the above motor connected properly?
11 Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?
12 Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?
Check
"ADF rear cover
4-165.
Yes
Replace the ADF Replace the
feed drive motor connection.
assembly.
Go to "ADF feed
drive motor
assembly
removal" on
page 4-172.
Go to step 10. Go to step 9.
Replace the Replace the
sensor (sheet connection.
through).
Go to "Sensor
(sheet through)
removal" on
page 4-200.
Replace the ADF Replace the
feed drive motor connection.
assembly.
Go to "ADF feed
drive motor
assembly
removal" on
page 4-172.
Replace the ADF Go to step 11.
controller card
assembly.
Go to "ADF
controller card
assembly
removal" on
page 4-167.
Replace the RIP Problem solved.
card assembly.
Go to "RIP card
assembly
removal" on
page 4-128.
Diagnostic information
7500-XXX
No
2-89