Zebra CPCL Specifications download pdf (Page 57)

100

101

Mobile Printing Systems

CPCL Programming Manual

Section 5

Linear Bar

Codes

pg. 5-13

Postnet and Facing Identication Marks

The US Postnet bar code is used only to help automate mail delivery. To comply with postal regulations,

set the height of the bar code to 30 dots, the wide/narrow bar ratio at 3.5:1, and the width of the narrow bar

to 3 dots on a 200 d.p.i. printer. The data sent to the bar code can be 5, 9, or 11 digits long. For example,

to send mail to 30 Plan Way, Warwick, RI 02886-1234, the data would be

5 digits- ZIP Code only: 02886

9 digits - ZIP + 4 Code: 028861234

11 digits - ZIP + 4 Code and last two digits in address: 02886123430

The Postnet bar code also contains an automatically calculated checksum as the last character in the

decoded bar code. As a short example, our data will be “02881123430”

Step 1: Add the numerical value of all the characters. 0+2+8+8+1+1+2+3+4+3+0 = 32.

Step 2: Divide this number by 10 and use the remainder, or modulo. In our example, this is 2

Step 3: Subtract the remainder (or modulo) from 10 to get the check sum. The check sum for our

example would be 8 (10 - 32 mod 10 for programmers).

A Facing Identification Mark (FIM) is the bar in the upper right corner of an envelope near the stamp. To

comply with postal regulations, set the height of the bar code to 125 dots, the ratio to 1.5:1 dots, and the

width of the narrow bar to 6 dots. There are three different characters you can send as data: A, B, and C.

FIM A: Courtesy Reply Mail with Postnet Bar code

FIM B: Business Reply Mail, Penalty Mail, or Franked Mail without Postnet Bar code

FIM C: Business Reply Mail, Penalty Mail, or Franked Mail with Postnet Bar code.

For more information, please see Publication 25 from the USPS Postal Business Center. If you are

making a label with an address, try using resident font 7 or font 4 for best results with the optical character

recognition software used by the post office.

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Zebra CPCL Specifications Page 57

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