IBM 4400 manual Commands following an ESC 2 sequence* are at n/72-inch line

Line Spacing n/72 Inch

Line Spacing n/72 Inch

ASCII Code ESC A n

Hex Code	1B 41 n
Dec Code	27 65 n
Purpose	Stores a line spacing of n/72-inch increments.
where:	n = 1 through 85 (hex 01 through hex 55, all others are ignored)
Comment	When the ESC A control sequence is received, all line feed
	commands following an ESC 2 sequence* are at n/72-inch line
	spacing until a new line spacing is selected or the printer is
	reset. The control code line spacing selection overrides the
	control panel line spacing setting and the message display
	reflects the line spacing in lines per inch.
	Small values of n may result in overlapping lines. Overlapping
	lines may also occur if print attributes such as Elongated
	(Double High), Superscript, or Subscript characters are used on
	the same line. Printing at different horizontal and vertical
	densities do not overlap.
Example	The following example illustrates 35/72-inch line spacing.

*The ESC 2 sequence (page 132) asserts the line spacing that was stored by the preceding ESC A sequence.

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