Lexmark X862de - Sensor (Scanner HP) Failure

2-130 MFP Service Manual
7500-432, -632, and -832
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843.00 Sensor (scanner HP) failure
Step Check Yes No
1 Check the scanner carriage rails.
Is there any foreign substance on the scanner rails?
Clean and
lubricate the
scanner carriage
rails.
Go to step 2.
2 Check the sensor (scanner HP) for operation.
Perform the sensor (scanner HP) test.
Remove the large platen glass. Go to “Large platen glass
removal” on page 4-150.
1. Enter the Diagnostics Menu.
2. Touch SCANNER TESTS.
3. Touch Sensor Tests.
4. Touch Scanner HP.
Gently move the scanner carriage side to side.
Does the display on the operator panel change every time the
sensing area of the above sensor is blocked?
Go to step 4. Go to step 3.
3 Check the sensor (scanner HP) for connection.
Is the above sensor connected properly?
Replace the
sensor (scanner
HP).
Go to “Sensor
(scanner HP)
removal” on
page 4-159.
Replace the
connection.
4 Check the scanner drive motor assembly.
Perform the scanner drive motor test.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Scanner Motor Tests.
4. Touch Scanner drv mtr.
5. Touch Forward or reverse.
Does the scanner drive motor assembly operate properly?
Go to step 6. Go to step 5.
5 Check the scanner drive motor assembly for connection.
Is the above motor connected properly?
Replace the
scanner drive
motor assembly.
Go to “Scanner
drive motor
assembly
removal” on
page 4-163.
Replace the
connection.
6 Place media on the large platen and perform a scanner test.
Does the error remain?
Replace the
scanner
controller card
assembly.
Go to “Scanner
controller card
assembly
removal” on
page 4-151.
Problem solved.