HP Officejet 4620 - Clean the scanner glass and lid backing

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Clean the scanner glass and lid backing

Dust or dirt on the scanner glass, scanner lid backing, or scanner frame can slow down
performance, degrade the quality of scans, and affect the accuracy of special features
such as fitting copies to a certain page size.

To clean the scanner glass and lid backing
Turn off the printer.

For more information, see Turn off the printer.

2. Lift the scanner lid.

Maintain the printer


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3. Clean the glass and lid backing by using a soft, lint-free cloth that has been

sprayed with a mild glass cleaner.



1 Lid backing

2 Scanner glass

CAUTION: Use only glass cleaner to clean the scanner glass. Avoid cleaners
that contain abrasives, acetone, benzene, and carbon tetrachloride, all of which
can damage the scanner glass. Avoid isopropyl alcohol because it can leave
streaks on the glass.

CAUTION: Do not spray the glass cleaner directly on the glass. If too much
glass cleaner is applied, the cleaner could leak under the glass and damage the

4. Dry the glass and lid backing with a dry, soft, lint-free cloth.
5. Close the scanner lid, and turn on the printer.