HP 4620 - Manual (Page 29)

Maintain the printer
This section provides instructions for keeping the printer in top working condition.
Perform these maintenance procedures as necessary.
•
Clean the scanner glass and lid backing
• Clean the exterior
• Clean the ADF
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
1. Turn off the printer.
For more information, see Turn off the printer.
2. Lift the scanner lid.
Maintain the printer 25