32 Line Matrix Printer Code V Programmer's Reference Manual

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Chapter 3 Bar Codes

POSTNET

The POSTNET bar code structure is illustrated in Figure 17 and Figure 18 and

described on the following pages. The POSTNET code can be a part of the

address block and appear anywhere within a vertical 4-inch area across the

length of the mail piece.

The POSTNET bar code cannot use variable ratio and does not have a

readable data field.

Figure 17. POSTNET Structure

NOTE: Additional information regarding POSTNET bar code requirements

can be obtained from the U.S. Postal Service’s Publication 25:

Guide to Business Mail Preparation.

Return Address Area Postage Area

1/2"1/2"

BAR CODE DATA FIELD

START STOP

QUIET ZONE

CODE CODE

STARTING

POSITION

QUIET ZONE

CHECK DIGIT

NOTE: Illustration is not to scale

QUIET

ZONE

QUIET

ZONE

ADDRESS BLOCK BAR CODE READ AREA