Chapter 2 Bar Codes

Human Readable Line (HRL)

The human readable line, which is .10 inch below the bar code, will print in any of the available fonts as long as the bar code is not rotated. (Rotated bar codes use a special font.)

To enable bold, underlining or expanded print on the human readable line, you must first print the bar code without the line. Exit the bar code mode. Then, print the line in normal text mode with the specified enhancements.

Spacing Between Bar Codes

The space before and after a bar code is referred to as the “quiet zone” and equals .25 inch. If two horizontal bar codes are placed side by side, the designated minimum distance between them is .50 inch.

You can insert commas, spaces, and horizontal tabs as delimiters to separate the bar codes:

comma - no extra space added

space - adds .10 inch for a total .60 inch quiet zone

tab - adds appropriate number of empty spaces to reach next tab

Examples

The comma does not add any space; therefore, only .50 inch separates the bar codes.

A space character adds .1”. You can insert multiple space characters.

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Printronix ANSI Printer manual Human Readable Line HRL, Spacing Between Bar Codes