Specifications

ZPL Commands
^BU
98
45541L-004 Rev. A ZPL II Programming Guide 9/15/06
The font style of the interpretation line depends on the modulus (width of narrow bar) selected
in
^BY:
• 6 dot/mm printer: a modulus of 2 dots or greater prints with an OCR-B interpretation
line; a modulus of 1 dot prints font A.
• 8 dot/mm printer: a modulus of 3 dots or greater prints with an OCR-B interpretation
line; a modulus of 1 or 2 dots prints font A.
• 12 dot/mm printer: a modulus of 5 dots or greater prints with an OCR-B interpretation
line; a modulus of 1, 2, 3, or 4 dots prints font A.
• 24 dot/mm printer: a modulus of 9 dots or greater prints with an OCR-B interpretation
line; a modulus of 1 to 8 dots prints font A.
Comments The UPC-A bar code uses the Mod 10 check digit scheme for error checking.
For further information on Mod 10, see Mod 10 Check Digit on page 364.
Note • Zero is not allowed.
Example • This is an example of a UPC-A bar code with extension: