1. ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
  2. ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
  3. ZPL Commands
  4. ^BU
  • ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
^BU

^BU

The
^BU
 command produces a fixed length, numeric symbology. It is primarily used in the retail industry for labeling packages. The UPC-A barcode has 11 data characters. The 6 dot/mm, 12 dot/mm, and 24 dot/mm printheads produce the UPC-A barcode (UPC/EAN symbologies) at 100 percent size. However, an 8 dot/mm printhead produces the UPC/EAN symbologies at a magnification factor of 77 percent.

UPC-A Barcode

  • ^BU
     supports a fixed print ratio.
  • Field data (
    ^FD
    ) is limited to exactly 11 characters. ZPL II automatically truncates or pads on the left with zeros to achieve the required number of characters.
If additional information about this barcode is required, go to www.aimglobal.org.
Format:
^BUo,h,f,g,e
Parameters
Details
o =
 orientation
Values:
N =
 normal
R =
 rotated 90 degrees (clockwise)
I =
 inverted 180 degrees
B =
 read from the bottom up, 270 degrees
Default:
 current
^FW
 value
h =
 Barcode height (in dots)
Values:
1
 to
9999
Default:
 value set by
^BY
f =
 print interpretation line
Values:
N =
 no
Y =
 yes
Default:
Y
g =
 print interpretation line above code
Values:
N =
 no
Y =
 yes
Default:
N
e =
 print check digit
Values:
N =
 no
Y =
 yes
Default:
Y
The font style of the interpretation line depends on the modulus (width of narrow bar) selected in
^BY
. Zero is not allowed.
  • 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.
Example
This is an example of a UPC-A barcode with extension:
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.