Adf Elevator Tray Home Position Error Service Check - Lexmark MX71x Service Manual

Action
Step 7
Place an undamaged document on the flatbed scanner and perform a
scanner test.
Does the problem remain?
Step 8
Place an undamaged document on the flatbed scanner and perform a
scanner test.
Does the problem remain?

ADF elevator tray home position error service check

Action
Step 1
Check all connections on the ADF controller board for proper connectivity.
Are all of the connections properly connected?
Step 2
Check the sensor (ADF elevator tray home position) for damage or
detachment.
Is the sensor properly attached or free from damage?
Step 3
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 sensor is interrupted or blocked?
Step 4
Check the ADF elevator tray drive motor for proper operation.
a
Enter the Diagnostics Menu.
b
Touch motor TESTS.
c
Touch elevator tray home position.
d
Perform test.
Does the motor operate properly?
Yes
Replace the flatbed
scanner controller
board. See
scanner board
removal" on page
643.
Replace the ADF
controller board. See
"ADF controller card
removal" on page
582.
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Diagnostic information
278
No
The problem is
resolved.
"Flatbed
The problem is
resolved.
No
Replace the
connections.
Reattach or replace the
ADF rear side drive
parts pack.
Reattach or replace the
ADF rear side drive
parts pack.
Replace the ADF rear
side drive parts kit.
7463