NBS Technologies ImageMaster D-40 Operation Manual page 35

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4.7.4: Guard Height
The "Guard Height" parameter is only available for UPC-A, NEW UPC-A, EAN 8, and EAN
13. "Guard Height" refers to the height of the guard lines. Guard lines are the portions of the
barcode that extends below and into the number field. (See Figure 4-14.) This parameter
allows the user to adjust and customize the height.
4.7.5: Ratio
"Ratio" is the width of a wide line vs. the width of a thin line.
available for UPC-A, or NEW UPC-A.)
4.7.6: Density
"Density" is the parameter that controls the width of a thin line. Each bar can be one of four
possible thickness, varying from 1 module to 4 modules.
4.7.7: Gap
"Gap" is the parameter that controls the space between lines. Each space can one be of four
possible thickness, varying from 1 module to 4 modules.
4.7.8: Orientation
The "Orientation" parameter allows the D-40 printer to print the barcode in any of the four
area directions around the X and Y Coordinates. These are: horizontal, vertical, reverse
horizontal, and reverse vertical. (It should be understood that some barcodes cannot be read
backwards or upside down.)
Creating Layouts
Figure 4-14 Guard Height Parameter
NBS Technologies Inc.
Guard Height
(The "Ratio" parameter is not
Chapter 4 Page 16