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Maintenance
Cleaning
From time to time, the optical platen, the keypad and display
window require cleaning. Since working environments differ, it is not
possible to define when exactly cleaning should be performed.
The following is a suggested guide:
Item Cleaning Frequency
Keypad and
display window
Clean when visibly dirty and hard to read.
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.
Cleaning the Keypad and Display
To clean the keypad and display, use a soft paper tissue which should
be slightly damp.
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