User guide

Optical platen Do not over clean. The platen is designed to work
under greasy or dirty conditions.
However, do clean if the platen is obscured or if
users report deteriorating performance. See
cleaning the Optical Platen below.
To clean the keypad and display, use a soft paper tissue which should be
slightly damp.
Cleaning the Optical Platen
• If dusty, blow air on the platen to clean any dust particles.
• If the sensor is greasy, wipe it with a mild window cleaner or
other similar neutral detergent.
Warning: Do not use any other cleaner or the platen may be
damaged. Be careful not to scratch the platen.