Black Box PC124C Installation Manual page 138

By changing the width parameter, you can determine the width of the module
and the thickness of the bars and spaces.
Width parameters can range from 1 to 9.
To determine the total length of the bar code, simply multiply the module
length (found in the table on the following page) with the number of bar-code
characters.
Example: Using Code 3 of 9, you want to bar-code the word "PRINTERS." Assume
the interface also generates a check digit and the start/stop characters. Setting the
width parameter to 2 will yield a total bar-code length of approximately 4 cm or
about 1.6 inches.
Number of characters: 11 (8 letters (PRINTERS) + 2 start/stop characters + 1
check digit)
Module width (from Table E-1) 3.6 mm (0.14 inches) Calculation: 11 x 3.6
mm = 39.6 mm = 3.96 cm; or 11 x .14 in = 1.54 inches
LASER CARDS FOR HP 4000 TWINAX AND COAX PRINTERS
The table gives rounded values only.
NOTE
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