RJS Inspector D4000 SP (FIRMWARE version A.06 and Later) - Manual (Page 72)

Appendix K Operator
’s Guide
RJS, Minneapolis, MN 002-5572
Print Contrast Signal (PCS)
A comparison between the reflectance (brightness
difference) of bars and spaces in a symbol. PCS
under a given set of illumination conditions is de-
fined as follows:
PCS is calculated as follows:
L - D
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 sym-
bol 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.
Reflectance
A measure of the amount of light reflected from an
illuminated surface.
Reflectance Minumum
x 100%