Cleaning The Fingerprint Reader - Motion Computing J3400 User Manual

Cleaning the fingerprint reader

Under normal circumstances, you should clean the fingerprint reader once a month, or
whenever necessary.
To clean the fingerprint reader
1. Shut down the Tablet PC, unplug it, and remove the battery.
2. Lightly spray a cotton swab with household window cleaner.
3. Gently rub the sensor surface with the cotton swab, slowly rotating the swab so a new,
clean surface of the swab is constantly exposed to the sensor surface. Do not allow
cleaner to drip or run down into the electronics around the sensor.
Do not use bleach, solvents, or abrasives. Do not spray or pour any liquid directly on the
sensor.
4. After cleaning, gently rub the surfaces again with a clean, dry cotton swab. Use a clean
swab each time you clean the sensor.
66 Chapter 4 Care and Maintenance