RJS Inspector D4000 SP (FIRMWARE version A.06 and Later) - Manual (Page 62)

Appendix K Operator
’s Guide
RJS, Minneapolis, MN 002-5572
Bar code
A group of parallel bars and spaces constituting
characters that are machine and human readable
(the code numbers while readable must still be in-
terpreted). See bar code symbol
Bar code Reader
A device used to identify and decode a bar code
symbol.
Bar code symbol
An array of rectangular bars and spaces which are
arranged in a predetermined pattern following spe-
cific rules to represent elements of data that are
referred to as characters. A bar code symbol typi-
cally contains a leading quiet zone, start character,
data character(s) including a check character (if
any), stop character and a trailing quiet zone.
Bar Height
The bar dimension perpendicular to the element
width. The measurement of the long dimension of
a bar element. (Also called bar length)
Bar Width
The lateral dimension of a bar; bar thickness.
Bar Width Ratio
The ratio of the widest bar or space to the narrow-
est.
Bar Reflectance (Rb)
The smallest reflectance value in a bar.
Bi-directional Code
A bar code that can be read left to right or right to
left.