Appendix C Kodak Imagelink Bar Code Reader 500; Use Of Bar Code Information; Bar Code Types - Kodak 500 User Manual

Appendix C Kodak Imagelink Bar Code Reader 500

Use of Bar Code Information

Bar Code Types

A-61408 September 1995
The bar code reader is used to read and decode information
encoded in a bar code format. A bar code is a pattern of parallel,
alternating black bars and white spaces which are used to repre-
sent letters, numerals and special characters.
Application modes can be individually programmed at installation
or upon request to employ the Bar Code Reader 500 Accessory.
When a document is fed into a Scanner 500 with Bar Code
Reader 500 Accessory, the bar code image(s) are decoded and
converted to a data string of ASCII characters. This data string is
placed in the Image Header which is sent to the host computer
with the document image.
The bar code reader is capable of reading and interpreting three
different types of bar code:
Code 3 of 9
Code 3 of 9 is also known as Code 39. Code 3 of 9 provides a
large number of available characters (43). Available characters
include alphanumeric, space, and the following six special charac-
ters: - . $ / + %. The asterisk (*) is used as both the start and stop
character. A character is represented by a group of nine elements.
Three of these elements are wide.
Interleaved 2 of 5 (ITF)
Interleaved 2 of 5, or I 2 of 5, provides high code density by using
the bars and spaces to encode two characters simultaneously.
This system provides the smallest available character set (only 10
characters—digits 0–9). I 2 of 5 uses separate, unique start and
stop characters. Each character is represented by five elements.
Two of these elements are wide.
Codabar (NW7)
Codabar provides a limited character set, with twelve available
characters (including digits 0–9 and two special characters: - $).
The character (a) is used as the start character, and there are four
interchangeable stop characters (a–d). Unlike Code 3 of 9, the
start and stop characters do not have to be the same. Each
character is represented by seven elements. Either two or three of
these elements are wide.
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