RJS Inspector D4000 SP (FIRMWARE version A.06 and Later) - Manual (Page 73)

Operator
’s Guide
Appendix K
002-5572 RJS, Minneapolis, MN 65
This parameter grade can be
“A” or “F.” The refle
c-
tance value of the
“lightest” space in a symbol mus
t
be equal to or greater than twice the reflec-
tance value of the
“darkest” bar.
Refl(max) = or > Refl(min) x 2 if
“yes” “A” else “F”
Reflectance Calibration Standard
(See plaque) A standard or
“known” refle
ctance val-
ue, usually printed on the back of a template or
plaque. Bar code readers are calibrated for reflec-
tance using these known values.
Required PCS
This is the minimum PCS percent required for the
symbol.
Resolution
The dimension of the smallest code element that
can be printed; the higher the resolution the clearer
the image.
Scanner
An electronic device that converts printed infor-
mation into electrical signals.
Scan Reflectance Profile
A record (usually graphically represented) of the
reflectance measured using the reference reflectivi-
ty method as a function of distance across the en-
tire bar code symbol.
Segment
Refers to the left and right grouping of modules or
elements into segments to designate parity for
checking validity of a scan.
Self-checking
A bar code or symbol that uses a checking algo-
rithm that can be applied to each character, to