Flatbed Scanner Home Position Error Service Check - Lexmark MX71x Service Manual

Action
Step 3
Perform an ADF scanner test.
Does the problem remain?

Flatbed scanner home position error service check

Action
Step 1
Check the ADF to flatbed scanner connection for proper connectivity.
Is the connection properly connected?
Step 2
Check the sensor (flatbed scanner home position) for damage or
detachment.
Is the sensor properly attached or free from damage?
Step 3
Check the sensor (flatbed scanner home position) for proper operation.
a
Enter the Diagnostics Menu.
b
Touch SCANNER TESTS.
c
Touch Sensor Tests.
d
See the line item "sensor (flatbed scanner 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 sensor (flatbed scanner home position) for proper connection.
Is the component properly connected?
Step 5
Check the flatbed scanner drive motor for proper operation.
a
Enter the Diagnostics Menu.
b
Touch MOTOR TESTS.
c
Touch flatbed drive motor.
d
Perform test.
Does the motor operate properly?
Step 6
Check the flatbed scanner motor for proper connection.
Is the component properly connected?
Yes
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 5.
Reattach or replace the
sensor (flatbed scanner
home position).
Go to step 7.
Replace the ADF rear
side drive parts pack.
Diagnostic information
277
7463
No
Replace the
connection.
No
Replace the
connection.
Reattach or replace the
sensor (flatbed scanner
home position).
Go to step 4.
Replace the
connection.
Go to step 6.
Replace the
connection.