`^BZ` POSTAL

US postal barcodes: POSTNET, PLANET and Intelligent Mail.

^BZ prints US postal barcodes: POSTNET by default, PLANET with type 1 and USPS Intelligent Mail with type 3, which takes 20 to 31 digits of tracking and routing code.

Barcodes · Updated 2026-10-20

Syntax

^BZo,h,f,g,t

Parameters

Parameter	What it does	Values
`o`	Rotation.	N, R, I, B
`h`	Bar height, in dots.	default: ^BY's
`f`	Human-readable line.	Y or N; default Y
`g`	Put that line above the code.	Y or N; default N
`t`	Postal code type.	0 = POSTNET, 1 = PLANET, 2 = local postal, 3 = USPS Intelligent Mail; default 0

Common mistakes

Intelligent Mail (t = 3) takes 20, 25, 29 or 31 digits: the tracking code plus the routing ZIP.

Example

Edit the code and the label redraws. This is the same engine as the API.

Preview

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^BZ example rendered by the OpenZPL engine — Output of this example

Questions

What does ^BZ do in ZPL?

^BZ prints US postal barcodes: POSTNET by default, PLANET with type 1 and USPS Intelligent Mail with type 3, which takes 20 to 31 digits of tracking and routing code.

What is the syntax of ^BZ?

^BZo,h,f,g,t

What should I watch out for with ^BZ?

Intelligent Mail (t = 3) takes 20, 25, 29 or 31 digits: the tracking code plus the routing ZIP.

Related commands

^BY Bar Code Field Default ^BC Code 128 ^B3 Code 39 ^B2 Interleaved 2 of 5 ^BE EAN-13 ^B8 EAN-8 ^BU UPC-A ^B9 UPC-E

^BZ POSTAL