Chapter 3 Bar Codes

POSTNET

The POSTNET bar code structure is illustrated in Figure 30 and Figure 31 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.

Return Address Area

 

 

 

Postage Area

 

ADDRESS BLOCK BAR CODE READ AREA

 

1/2"

 

 

 

1/2"

4"

 

 

 

 

SR, SC

 

 

 

 

POSITION

 

 

 

 

 

 

QUIET ZONE

 

 

QUIET

START

BAR CODE DATA FIELD

STOP

QUIET

ZONE

ZONE

CODE

 

CODE

 

 

 

 

 

QUIET ZONE

 

 

 

 

 

CHECK DIGIT

 

NOTE: Illustration is not to scale

 

 

 

Figure 30. POSTNET Structure

Note Additional information regarding POSTNET bar code requirements can be obtained from the U.S. Postal Service’s Publication 25: A Guide to Business Mail Preparation.

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Printronix LQH-HWTM manual Postnet