RJS Inspector 5000 Operator's Manual page 124

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Appendix M
Plaque
A template used as a reflectance calibration standard
(RCS). The known reflectance values are posted on
the back of the plaque.
Print Contrast Signal (PCS)
A comparison between the reflectance (brightness
difference) of bars and spaces in a symbol.
under a given set of illumination conditions is defined
as follows:
PCS is calculated as follows:
L - D
x 100%
L
Where:
L = Lightest (highest reflectance)
D = Darkest (lowest reflectance)
Profile
See Scan Reflectance Profile
Quiet Zone
The area immediately preceding the start character
and following the stop character in a bar code symbol
as specified in a particular application and/or
symbology specification.
Reference Decode
Each symbology type specifies a specific decoding
method to be used in determining overall symbol
grade.
This parameter grade can be "A" or "F." ("A" is pass
and "F" is fail). If this parameter is "F" the overall
symbol grade will also be "F" regardless of any other
parameter. If this parameter is "A" the lowest of the
other parameter grades determines the overall
symbol grade.
RJS, Minneapolis, MN
118
Operator's Guide
PCS
003-4500

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