ZPL commandsBarcodes

^BYBar code field default

✓Supported by zplkit

Sets the default module width, wide to narrow ratio and height for the bar codes that follow. Put it before a bar code command to control its size.

Format

^BYw,r,h

Parameter	Description	Default
`w`	Module (narrow bar) width, in dots1 to 10	2
`r`	Wide to narrow bar ratio2.0 to 3.0	3.0
`h`	Bar code height, in dots	10

Edit it to see what prints

^XA
^BY3,2,100
^FO50,50^BCN^FD12345^FS
^XZ

^BXData Matrix bar code

Data Matrix, a square or rectangular 2D symbol that stores a lot of data in a small area. Common for marking parts and healthcare items.

^BZPOSTNET bar code

USPS postal bar code: POSTNET by default, or PLANET or Intelligent Mail through the t parameter. It encodes ZIP Code and tracking data on mail.