Adf & Scanner Image Quality; Dark Image Quality (Using Adf Or Scanner) - Lexmark X651de Service Manual

7462
ADF & Scanner Image Quality

Dark image quality (using ADF or Scanner)

Leading edge Leading edge
Trailing edge Trailing edge
Before starting, check the media route for foreign objects, such as staples, clips, and scraps, in the media path.
Step
Check the large and small platen glass on the scanner
1
unit assembly.
Is the large and small platen glass contaminated?
Check the three mirrors in the scanner unit assembly.
2
Are the three mirrors contaminated or show signs of
dust?
Check the white strip on the bottom of the large platen
3
glass.
Is the white strip contaminated?
Check the scanner lens.
4
Is the scanner lens contaminated?
Perform a print test using the ADF & scanner unit
5
assemblies.
Does the error continue?
Service Manual
2-176
Check Yes No
Clean both sides Go to step 2.
of the large and
small platen
glass.
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.
Clean the Go to step 5.
scanner lens.
Replace the Problem
scanner resolved.
controller card
assembly.
Go to
"Scanner
controller card
assembly
removal
(models X651,
X652, X654 and
X656)" on
page 4-129.
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