Tips for easy and consistent
punching success with a Fingerprint Time Clock
Enrolling:
1) If you have small (especially narrow)
fingers, use your widest fingers, even your thumb, so that you have the maximum
possible contact with the lens
2) When enrolling, place your finger firmly on
the lens with moderate pressure. You don't want to press so hard as to bend or
break the plastic, but don't be too light of touch.
3) Place finger onto the lens without sliding
or rolling it into position.
4) If your fingers tend to be dry, use the
Fingerprint Enhancer gel. If that isn't available, touch your finger to
your forehead or the side of your nose first. These areas tend to have a higher
amount of skin oils which will help the scanner notice your finger and read the
ridge patterns easier.
5) Locate your finger slightly left, centered,
and slightly right for your three enrolling scans. This will help the clock
identify you if your finger isn't exactly centered for your subsequent
reads.
Daily Use:
1) As with #2 above, place your finger firmly
with moderate pressure
2) As with #3 above, place your finger during
punching without sliding or rolling it into place
3) As with #4 above, if your fingers are dry,
use the gel or get some oil from the side of your nose or forehead to improve
the read rate
4) Key your ID, then touch the lens. If the
clock senses your finger but doesn't read it, try typing your ID first, then
touch your finger. You don't need to press OK after typing your number, but it
won't be a problem if you do. This allows the clock to compare the current read
with your specific stored image. It will not require as many points of
similarity to succeed.
Maintenance:
1) Clean the lens with a small strip of tape,
like Scotch tape. Stick the tape to the lens and pull it away. Do this several
times if necessary. Do not use any chemical or solvent for cleaning - including
Windex, ammonia products, alcohol, soaps, etc.
2) You can lower the pass/fail threshold in
the Advanced Options.
Default value for Identify mode (Touch and
Go) is 35 points of similarity.
Default value for Verify mode (ID, then
Touch) is 15 points of similarity.
Lowering the Identify mode threshold too
far will cause the clock to Identify the wrong person because it will choose the
first stored image with the correct number of points of similarity
Lowering the Verify mode threshold too far
will permit the clock to verify an incorrect finger image to the stored image
for the user.
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