Sensor (Scanner Hp) Failure - Lexmark X850e Service Manual

843.00 Sensor (scanner HP) failure

Step
1 Check the scanner carriage rails.
Is there any foreign substance on the scanner rails?
2 Check the sensor (scanner HP) for operation.
Perform the sensor (scanner HP) test.
Remove the large platen glass. Go to
removal" on page
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?
3 Check the sensor (scanner HP) for connection.
Is the above sensor connected properly?
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?
5 Check the scanner drive motor assembly for connection.
Is the above motor connected properly?
6 Place media on the large platen and perform a scanner test.
Does the error remain?
Check
"Large platen glass
4-142.
Yes
Clean and Go to step 2.
lubricate the
scanner carriage
rails.
Go to step 4. Go to step 3.
Replace the Replace the
sensor (scanner connection.
HP).
Go to "Sensor
(scanner HP)
removal" on
page 4-151.
Go to step 6. Go to step 5.
Replace the Replace the
scanner drive connection.
motor assembly.
Go to "Scanner
drive motor
assembly
removal" on
page 4-155.
Replace the Problem solved.
scanner
controller card
assembly.
"Scanner
Go to
controller card
assembly
removal" on
page 4-143.
Diagnostic information
7500-XXX
No
2-133