User's Manual

8-8
• Try reading the following bar code below as an example of a known
“good” bar code. This bar code is a Code 39 bar code and is readable by
the RF Terminal set to its default settings.
• Make sure your bar codes have clearly defined dark bars and clean white
spaces. If the bars are so light that they are gray instead of black or are so
dark that they “bleed” into the white spaces, the printing of the bar codes is
the problem. Whoever is printing the bar codes needs to make the
necessary corrections.
• The bar code should also have a “quiet zone” of at least ¼” to the left of
the first bar and to the right of the last bar. Make sure to start your scan-
ning to the left of the bar code in the “quiet zone”, moving the scanner
quickly and smoothly as if drawing a line through the bar code. If using a
laser scanner or CCD scanner, make sure the beam covers the bar code
completely.
• Make sure you are using the correct type of scanner for the type of bar
code you are reading. If you are using an infrared wand, your bar code
must be printed using infrared-quality ink.
• If using a wand scanner, clean the tip. You would be amazed at how many
wands we see where the only problem is that it needs to be cleaned. You
would also be amazed at what we have found inside the tips of some of these
wands If using a laser or CCD, clean the window of the scanner with a soft
cloth.
If you have a problem…
• Save the shipping box. If you ever need to send the RF Terminal or
any of its’ parts back for repair, you will need the original shipping box.
• If you have a problem with your RF System, consult the
troubleshooting section of this manual FIRST. If you cannot find the
answer here, call your Dealer or Worth Data for help.