Spots (Using Flatbed Scanner) - Dell 5535dn Service Manual

Step
5 Perform a print test using the ADF unit assembly.
Does the error continue?

Spots (using flatbed scanner)

Leading edge Leading edge
Trailing edge Trailing edge
Step
1 Check the large platen glass on the scanner unit
assembly.
Is the large 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?
2-174
Service Manual
Check
Check
Yes
Replace the Problem solved.
scanner
controller card
assembly.
Go to "Scanner
controller card
assembly
removal
(models X651,
X652/5535dn,
X654, and X656)"
on page 4-132.
Yes
Clean or replace Go to step 2.
the scanner
platen glass
cover.
Go to "Scanner
platen glass
cover assembly
removal
(models X651,
X652/5535dn,
X654, and
X656)" on
page 4-140 or
"Scanner
platen glass
cover assembly
removal
(model X658)"
on page 4-139.
Clean the three Go to step 3.
mirrors in the
scanner unit
assembly.
No
No