Lexmark MX81 Series Service Manual page 138

Action
Step 3
Check the sensor (ADF elevator tray home position) for damage or
detachment.
Is the above sensor properly attached or free from damage?
Step 4
Check the sensor (ADF elevator tray home position) for proper operation.
a
Enter the Diagnostics Menu.
b
Touch SCANNER TESTS.
c
Touch Sensor Tests.
d
See the line item "sensor (ADF elevator tray home position)."
Does the display on the operator panel change every time the sensing
area of the above sensor is interrupted or blocked?
Step 5
Check the ADF elevator tray drive motor for proper operation.
a
Enter the Diagnostics Menu.
b
Touch motorTESTS.
c
Touch ADF elevator tray drive motor.
d
Perform test.
Does the motor operate properly.
Step 6
Place an undamaged document on the ADF elevator tray and perform an
ADF scanner test.
Does the problem remain?
Step 7
Place an undamaged document on the ADF elevator tray and perform a
scanner test.
Does the problem remain?
Yes
Go to step 4.
Go to step 5.
Go to step 6.
Replace the ADF
controller board. See
"ADF controller card
removal" on page
454.
Replace the controller
board. See
board removal" on
page
Diagnostic information
138
No
Reattach or replace the
ADF rear side drive
parts pack.
Replace the ADF rear
side drive parts pack.
Replace the ADF rear
side drive parts kit.
Problem resolved.
Problem resolved.
"Controller
386.
7463