Frequently Asked Questions
Hardware Specific Questions

I just purchased a Keyboard-Wedge scanner. I hooked it up to the keyboard port of
my laptop...

If it is not working without external keyboard, there is nothing you can do to make it work.

I can see light from my Keyboard-Wedge scanner and when I read a label, the
scanner beeps - but no data shows up. What's wrong?

Make sure, that you did not plug the scanner into the Mouse port! Is the keyboard
connected to the scanner cable and does the data you enter on the keyboard show up
on the screen.

When I scan a label with my Keyboard-Wedge scanner, why do I get small
characters when the label is capitals?

Since the capital function is controlled by the keyboard/PC interface it is possible that the
scanner is operating in a mode opposite to the keyboard/PC capital locks configuration.
To alleviate this issue simply scan the appropriate configuration in the manual for
setting the capital locks to the appropriate “on” or “off” setting.

Symbology Specific Questions

I am scanning I2 of 5 labels. How come the data I get from the scanner is not always
the complete barcode?
When scanning Interleaved 2 of 5 labels it is possible to scan off of the edge of the label.
If the scan line crosses the label at the exact character boundary point then it is possible
to get a valid bar code that is less than the total bar code. The solution is to set the
minimum and maximum length for I2 of 5.

Whenever I scan a label I get an asterisk, (*), at the beginning and the end of the data.
How do I eliminate the asterisk?

Inherent in the Code 39 symbology is a start/stop character which is an asterisk. In order
to drop the asterisk at the beginning and the end of the data string set-up code 39
setting to “drop” the start/stop character.

Whenever I scan a label I get an “A” or “B” or “C” or “D” at the beginning and the end
of the data. How do I eliminate the “A” or “B” or “C” or “D”?

Inherent in Codabar is a start character which is either an “A” or “B” or “C” or “D”, and the
end character which is either an “A” or “B” or “C” or “D”. In order to drop the letters at the
beginning and the end of the data string set-up codabar settings to “drop” the start/stop

I need to put UPC labels on my products. Do I have to register with some company to
get a UPC number?

Yes. You have to register at Uniform Code Council, Inc. The following page discribes,
what you have to do:

General Questions

I have a Wand scanner and I cannot get the scanner to read any labels.

There is a technique that is needed to scan a bar code with a wand type scanner with a
high degree of success. It is best to hold the wand between 65 and 80 degrees with
respect to the label surface. Additionally, the wand should be in contact with the surface
and the wand should cross over the label at a constant velocity similar to the motion
used to erase some pencil marks.

I would like to purchase a CCD Scanner. Should I always purchase a 3 inch aperture?

There are more than one aperture for CCD Scanners for a reason. Typically, the smaller
the aperture the better the unit will perform when reading high density labels.

I would like to purchase a Bar Code Scanner. Should I Purchase a Laser, a CCD, or a

The simple reason that all three scanner styles exist means that there are pros and
cons regarding each of the three technologies. Wand scanners are the most
economical, but typically are the most difficult of the three to use. Additionally, wands are
almost never used on curved and uneven surfaces. CCD scanner are typically the
easiest to use. You simply place the scanner over the bar code and the scanner will
read. A laser scanner requires the user to aim the laser beam at the label from a short
distance away. If used correctly each of the three different technologies will provide a
high percentage first read rate.

Do you ship to Europe?

No, we do not ship products overseas. For purchases in Europe, please contact Nexus
Please follow this link if you are interested in our products and located in Europe!