Instruction Manual

Chapter 3 Caring for your J3500 Cleaning the fingerprint reader 71
N
OTE: To order pens or new pen tips, go to Motion Computing Accessories.
Replacing pen tips
Pen tips eventually wear down or get damaged, so the pen includes extra tips and a tool for
replacing them.
With typical use, you should change the pen tip every 90 days. If you use the pen in a dirty
or dusty environment, you should change the pen tip every 30 days. Particles can become
embedded in the pen tip and scratch the display.
To replace the pen tip
1. Grasp the old tip with the replacement tool. Use the notch on the ring to grab the tip.
2. Pull the old tip out of the pen.
3. Insert a new tip, placing the flat end of the pen tip in first.
4. Apply slight pressure to push the tip in to place.
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, 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.