HP LaserJet M4349 Multifunction Printer series - Manual (Page 171)

Clean the scanner lid backing
Minor debris can accumulate on the white document lid backing that is located underneath the scanner
lid.
1. Open the scanner lid.
2. Clean the white document lid backing by using a soft cloth or sponge that has been moistened with
a mild soap and warm water. Also, clean the scanner strip next to the ADF scanner glass.
3. Wash the backing gently to loosen debris; do not scrub the backing.
4. Dry the backing by using a chamois or soft cloth.
CAUTION: Do not use paper-based wipes because they might scratch the backing.
5. If this does not clean the backing well enough, repeat the previous steps and use isopropyl alcohol
to dampen the cloth or sponge, and then wipe the backing thoroughly with a damp cloth to remove
any residual alcohol.
Clean the paper path
1. From the Home screen, touch Administration .
2. Touch Print Quality .
3. Touch Calibration/Cleaning .
4. Touch Create Cleaning Page .
The device prints a cleaning page.
5. Follow the instructions printed on the cleaning page.
Clean the document feeder
Clean the document feeder only if it is visibly marked or dirty, or if you are experiencing a decrease in
copy quality (such as streaking).
ENWW Clean the device 157