Poor Copy Quality; Vertical Dark Streaks On Output When Scanning From The Adf - Sharp MX-B427W User Manual

Troubleshoot a problem

Poor copy quality

Action
Step 1
a
Clean the scanner glass and the ADF glass with a damp, soft,
lint‑free cloth. If your printer has a second ADF glass inside the
ADF, then also clean that glass.
For more information, see
125.
b
Make sure that the document or photo is loaded facedown on
the upper left corner of the scanner glass.
c
Copy the document or photo.
Is the copy quality satisfactory?
Step 2
a
Check the quality of the original document or photo.
b
Adjust the scan quality settings.
c
Copy the document or photo.
Is the copy quality satisfactory?

Vertical dark streaks on output when scanning from the ADF

Action
a
Open the scanner cover.
b
Using a damp, soft, lint‑free cloth, wipe the ADF glass and the
ADF glass pad.
c
Close the scanner cover.
d
Scan the document.
Do vertical streaks appear on scanned documents?
"Cleaning the scanner" on page
Yes No
The problem is Go to step 2.
solved.
The problem is Contact your dealer.
solved.
Yes No
Contact your dealer. The problem is
solved.
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