Citizen Systems PPU-231II manual This bar code consists of 103 bar code characters

CODE128	This bar code consists of 103 bar code characters
	and three code sets, enabling 128 ASCII code
	characters to be printed. It has a variable length
	of columns.
	• Code set A ASCII characters 00H - 5FH can be
		represented.
	• Code set B	ASCII characters 20H - 7FH can be
		represented.
	• Code set C	Two-digit numbers 00 - 99 can each
		be represented by one character.

In addition to the above characters, special characters are available:

• Shift character (SHIFT)

When used in code set A, one character next to a Shift character is treated as a character of code set B. When used in code set B, one character next to a Shift character is treated as a character of code set A. The Shift character cannot be used in code set C.

• Code set select characters (CODE A, CODE B, CODE C):

The code set following a code set select character is switched to code set A, B, or C.

• Function characters (FNC1, FNC2, FNC3, FNC4):

How the function characters are used depends on each application. In code set C, only FNC1 is available.

When sending print data, note these points:

(1)Each string of bar code data must begin with a code set select character (CODE A, CODE B, or CODE C), which selects the first code set to use.

(2)Every special character is specified by a combination of two characters: a brace “{” followed by one character. A brace “{” itself is sent twice consecutively.

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