clean the glass
Dirty glass, from fingerprints, smudges, hair, and so on, slows down
performance and affects the accuracy of special features such as Fit to Page and
Copy.
1
Turn off the unit, unplug the power cord, and raise the lid.
2
Clean the glass with a soft cloth or sponge slightly moistened with a
nonabrasive glass cleaner.
Caution! Do not use abrasives, acetone, benzene, or carbon
tetrachloride on the glass; these can damage it. Do not place
liquids directly on the glass. They may seep under it and damage
the unit.
3
Dry the glass with a chamois or cellulose sponge to prevent spotting.