Vertical Lines (Process Direction Using The Adf) - Lexmark X940e Service Manual

Vertical lines (process direction using the ADF)

Leading edge Leading edge
Trailing edge Trailing edge
Step
1
Check the small platen glass on the scanner unit
assembly.
Is the large and small platen glass contaminated or
damaged?
2 Check the three mirrors in the scanner unit assembly.
Are the three mirrors contaminated or show signs of
dust?
3 Check the white strip on the bottom of the large platen
glass.
Is the white strip contaminated?
4 Perform a print test using the ADF unit assembly.
Does the error continue?
5 Perform a print test using the ADF unit assembly.
Does the error continue?
Check Yes
Clean or replace Go to step 2.
the small platen
glass.
Go to "Large
platen glass
removal" on
page 4-114.
Clean the three Go to step 3.
mirrors in the
scanner unit
assembly.
Clean the white Go to step 4.
strip and POR
the machine.
Replace the Problem solved.
CCD/lens
assembly.
Go to "CCD
card/lens
assembly
removal" on
page 4-116.
Replace the Problem solved.
scanner
controller card
assembly.
Go to "Scanner
controller card
assembly
removal" on
page 4-120.
Diagnostic information
7510-XXX
No
2-223