Microscan Quadrus EZ, User Manual, Page: 177 / 366

Quadrus EZ Reader User’s Manual
6-5
Symbol Quality
Data Matrix
Output Mode
Note: Output Mode applies to both ISO/IEC 15415 and Inkjet/Direct symbol quality
parameters.
Grade
If in Grade mode, a grade (A,B,C,D) specified by the International Symbology Specification
—Data Matrix, is appended to the symbol data.
Value
If in Value mode, the calculated value for that parameter is appended to the symbol data.
ISO/IEC 15415 Symbol Quality
Symbol Quality parameters specified by ISO/IEC 15415.
Symbol Contrast
Definition:
Output Mode specifies how the four output parameters, if enabled, are for-
matted.
Serial Cmd: < K708, symbol quality separator, output mode >
Default: Grade
Options: 0 = Grade 1 = Value
Usage: Lets the user know if contrast settings are less than acceptable.
Definition:
All the pixels that fall within the area of the test symbol, including its
required zone, will be sorted by their reflectance values to select the dark-
est 10% and the lightest 10% of the pixels. The arithmetic mean of the dark-
est and the lightest pixels is calculated and the difference of the two means
is the Symbol Contrast.
(ANSI) Symbol Contrast grade is defined in this way:
A (4.0) if SC > 70% B (3.0) if SC > 55%
C (2.0) if SC > 40% D (1.0) if SC > 20%
F (0.0) if SC < 20%
If enabled, the symbol contrast is appended to the symbol data according to
the ISO/IEC 15415 Symbol Quality Output Mode setting.
Serial Cmd: < K709,symbol contrast ,print growth,axial non-uniformity,unused ecc>
Default: Disabled
Options: 0 = Disabled 1 = Enabled