Scanner Controller Card Assembly Failure 2; Exposure Lamp Failure; White Reference/Exposure Lamp Illumination Failure - Lexmark X95 series Service Manual

843.26 Scanner controller card assembly failure 2

Step Action and questions
Check the connection of each
1
scanner controller card assembly
connector.
Is each connector of scanner
controller card assembly
connected properly?
Perform a POR.
2
Does the error remain when the
power is turned off/on?

844.00 Exposure lamp failure

Step Action and questions
Check the exposure lamp for
1
connection.
Is the above component
connected properly?
Perform a POR.
2
Does the error remain when the
power is turned off/on?

844.01 White reference/exposure lamp illumination failure

Step Action and questions
Check the large platen glass.
1
Is the large platen glass
installed properly?
Remove the large platen glass.
2
Check the bottom of the large
platen glass in the vicinity the
white reference strip for
contamination.
Is the vicinity of white
reference strip contaminated?
Perform a POR.
3
Does the error remain?
Yes
Go to step 2.
Replace the scanner controller
PCBA.
Go to
"Scanner controller
PCBA removal" on page 4-238.
Yes
Replace the exposure lamp.
Go to
"LED exposure bar
removal" on page 4-235.
Replace the scanner controller
PCBA.
Go to
"Scanner controller
PCBA removal" on page 4-238.
Yes
Go to step 2.
Clean the bottom of the large
platen glass in the vicinity of the
white reference strip.
Reinstall the large platen glass
properly.
Go to step 3.
Go to step 4.
7558-xxx
No
Connect each connector of
scanner controller card assembly
properly.
Problem resolved
No
Replace the connection.
Problem resolved
No
Remove and clean the large
platen glass.
Go to
"Large platen glass
removal" on page 4-234.
Reinstall the large platen glass
properly.
Go to step 3.
Go to step 4.
Problem resolved
Diagnostic information
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