clean the exterior
Use a soft cloth or slightly moistened sponge to wipe dust, smudges, and stains
off the case. The interior of the device does not require cleaning. Keep fluids
away from the interior of the device as well as the front panel.
Note:
To avoid damage to painted parts of the HP Officejet, do not use
alcohol or alcohol-based cleaning products on the front panel or the lid of
the device.