Diagnostic information 2-123
7510
844.01 White reference/exposure lamp illumination error
3
Check the exposure lamp PS card assembly.
Is the above card properly connected to the scanner
controller card assembly?
Replace the
exposure lamp
PS card
assembly.
“Exposure lamp
PS card
assembly
removal” on
page 4-129.
Replace the
connection.
4
Check the scanner PS card assembly for connection.
Is the above card connected properly?
Replace the
scanner PS card
assembly.
Go to “Scanner
PS card
assembly
removal” on
page 4-133.
Replace the
connection.
5
Perform a POR.
Does the error remain when the power is turned off/on?
Replace the
scanner
controller card
assembly.
Go to “Scanner
controller card
assembly
removal” on
page 4-130.
Problem solved.
Step Check Yes No
1 Check the large platen glass.
Is the large platen glass installed properly?
Go to step 2. Remove and
clean the large
platen glass.
Go to “Large
platen glass
removal” on
page 4-124.
Reinstall the
large platen glass
properly.
Go to step 3.
2
Remove the large platen glass. Go to “Large platen glass
removal” on page 4-124.
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?
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.
3
Perform a POR.
Does the error remain?
Go to step 4. Problem solved.
Step Check Yes No
To Next Page
Loading...
Need help?
General
