•
Too fast, too slow, too variable
•
Practice scanning smoothly, with little pressure on the wand.
•
Practice scanning the symbol, outside of Quiet Zone to outside of
Quiet Zone in about one-half second.
Scanner Missing, Scanner Disabled
•
The software is unable to detect the presence of a wand.
•
Make sure the verification input device is turned on.
•
Check batteries in input unit.
•
Check cable connections.
•
Check wand connections.
•
Check COM port settings (under “Configuration” Icon or Menu).
Frequently Asked Questions
A bar code is a way of representing data using bars, both dark bars and light
bars (spaces). The rules governing the exact method of using bars and spaces
to represent data is called a symbology. A printed pattern that encodes data is
called a symbol.
There are literally hundreds of bar code symbologies in existence but only a
handful are in common use today. Quick Check
®
PC is designed to verify all
commonlyused bar codes.
Symbologies supported by Quick Check
®
PC:
•
Codabar
•
Code 39
•
Code 128
•
Interleaved 2-of-5 (ITF)
•
UPC/EAN (and addendums)
All bar codes have the same basic elements even if they look very different. The
illustration that follows shows the basic components of a bar code symbol for
Code 39 (upper) and U.P.C. (lower).
The illustration shows:
•
A left-hand Quiet Zone
•
A Start Character or Pattern
•
Encoded data
•
A Stop Character or Pattern
•
A right-hand Quiet Zone
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