IBM 4400 manual Print Control Codes, Print One Control Code, Overscoring

Overscoring

Overscoring

ASCII Code ESC _ n

Hex Code	1B 5F n
Dec Code	27 95 n
Purpose	Enables or disables automatic overscoring of all characters.
where:	if n = 1, 3, 5... (any odd value) automatic overscoring is enabled
	if n = 0, 2, 4... (any even value) automatic overscoring is
	disabled
Comment	When automatic overscore is enabled, all characters, including
	spaces, are overscored. Full-height graphics characters are not
	overscored.
Example	The following sample illustrates automatic overscoring and
	overscoring reset.

Print Control Codes

ASCII Code ESC \ n1 n2

Hex Code	1B 5C n1 n2
Dec Code	27 92 n1 n2
Purpose	Prints the characters assigned to specified hex codes as
	characters, rather than interpreting the code values as command
	parameters or control codes.
where:	(n1 + 256n2) define the number of data bytes to follow; each
	byte represents one hex code.

Print One Control Code

ASCII Code ESC ^ n

Hex Code	1B 5E n
Dec Code	27 94 n
Purpose	Prints the character corresponding to n.
where:	n = hex code of the character

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