Printronix ThermaLine Series manual Left side of the data field or lower side on

SR	Defines the starting row for the bar code. Enter a value
	ranging from row 1 to one less than the length of the
	form. Character row or dot row is specified based on
	the Scale command (page 4±88), or use the CP.DP
	format (page 4±7).
SC	Defines the starting column of the bar code. Enter a
	value ranging from column 1 to one less than the width
	of the form. Character column or dot column is
	specified based on the Scale command (page 4±88), or
	use the CP.DP format (page 4±7).
D	The printable character (delimiter) identifying the start
	and finish of the data field. Enter any printable
	character other than a slash (/), the SFCC, or a
	character used within the data. The same character
	must be used at both ends of the data field, but it is not
	printed with the data.
data field	Enter the characters of the bar code data, restricted to
	exactly 12 digits. If the 2± or 5±digit add±on data
	option is used, include this data at the end of the data
	field. The characters available for the data field are 0
	through 9 (30 through 39 hex, respectively). The first
	character is interpreted as the number system character.
	The left side of the data field (or lower side on
	vertically oriented symbols) can be encoded in either
	format A or format B as determined by the value of the
	number system character. (A bar code character is not
	produced for the number system character.)
	The number system character is derived from the left
	side data field encoding. The right side of the data field
	(or upper side on vertically oriented symbols) and
	check digit are always encoded in format C.
	Table 5±15 defines the left side data field format based
	on the number system character.

5±68 Bar Codes