Cleaning The Fingerprint Reader; Pen; Replacing Pen Tips - Motion Computing J3500 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.

Pen

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Store the pen in the pen bay or in a case when not in use.
•
Do not store the pen vertically on the tip. Constant pressure on the tip can affect the
pen-to-digitizer interaction.
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Change the pen tip regularly. See "Replacing pen tips" on page 61.
•
Do not immerse the pen in liquid. It contains electronic components that could be
damaged.
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In certain environments, particles or debris can stick to the pen tip or the Tablet PC
display. To avoid damaging the display, clean it frequently with the provided cleaning
cloth. Also, change pen tips regularly, especially if you drop the pen onto a rough surface
that could damage the tip or embed debris in it. Damaged pen tips can scratch the
display.

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 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 tip 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 pen tip into place.
Chapter 4 Care and Maintenance 61