Printronix ANSI Printer - Manual (Page 53)

Bar Code Readers
53
To space bar codes across a page, insert horizontal tabs. Line 10 sets
horizontal tabs at 1440 and 2880 decipoints (2 and 4 inches). The Horizontal
Tab codes in lines 40 and 60 cause a jump to the next tab.
If horizontal tabs have not been set, a Horizontal Tab code is considered a
space, adding .1 inch between the bar codes. Total separation is .6 inchwhen
the Horizontal Tab is added to the quiet zones.
Line 10 clears all previously set horizontal tabs for this example.
Bar Code Readers
Use a bar code reader that can read medium or low density bar code
symbols. Avoid readers with apertures less than 7 mils (.007 inch or .18mm).