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Code 128
Command Structure <ESC>BGbbcccdd (data)
bb = Width of narrow element in dots (01-12)
ccc = Bar height in dots (001-600)
dd = Start code to specify initial subset of bar code data
>G Subset A Start code
>H Subset B Start code
>I Subset C Start code
(data) = Includes bar code data and subset Shift codes; Shift codes
are used to change the subset type within the bar code data.
Shift codes:
>E Subset A Shift code
>D Subset B Shift code
>C Subset C Shift code
Character Set See Code 128 Character Table on Page B-18
Density Table
Printer
Model
Value of
“bb”
“X”
Dimension
Density (char/inch)
(mils) Subsets A,
B
Subset C
CL412
CL612
01 3.3 27.3 54.7
02 6.7 13.6 27.2
03 10 9.1 18.3
CL408
CL608
01 5.0 18.2 36.5
01 10.0 9.1 18.3
03 15.0 13.8 12.2
Example The following will start in Subset A for the characters “AB”, shift to
Subset B for “789”, then shift to Subset C for “123456”.
<ESC>H0200<ESC>V0550<ESC>BG03100>GAB>B789>C123456
<ESC>H0310<ESC>V655<ESC>XSAB789123456
Appendix B: Bar Code Specifications
PageB-109001035Rev.ESATOCLSeriesPrinters