Specifications

Printed Documentation
356
constructed with one wide bar and two wide spaces. Quiet zone is 10 times the
width of the narrow bar. There is no checksum defined as part of the Codabar
standard. But when it is used, it is inserted between the last data character and
stop character. Modulus 16 is generally used for the checksum.
Specifications:
Specifications:Specifications:
Specifications:
Character Set
Character SetCharacter Set
Character Set
0 - 9, $, -, :, /, ., +
There are also four unique start/stop characters designated A,B,C and D.
Encodation
Encodation Encodation
Encodation
Four bars and three spaces are required to encode a character.
Allowable Sizes
Allowable SizesAllowable Sizes
Allowable Sizes
Minimum "X" Dimension:
.0075 inches
Wide to Narrow Ratio:
2:1 to 3:1 for "X" Dimension > .020 inches
2.2:1 to 3:1 for "X" Dimension < .020 inches
Allowable Symbol Height:
The greater of .25 inches or 15% of the symbol length.
Code 39
History and Overview
History and OverviewHistory and Overview
History and Overview
Code 39 is a widely used industrial barcode and is mandated for some
automotive industry and Department of Defense labels, because of its ability to
represent alphanumeric data. Code 39 is defined in American National Standards
Institute (ANSI) standard MG10.8M - 1983, and is also known as 3 of 9. It is
discrete, self-checking, variable length symbology that can be readily printed by a
variety of technologies.