IBM 4400 manual Ascii Code ESC C n Hex Code, Ascii Code ESC v n1 n2 n3 n4

Chapter 4 Configuring the Serial Matrix Emulation with Control Codes

Forms Length Set (Lines)

ASCII Code ESC C n

Hex Code	1B 43 n
Dec Code	27 67 n
Purpose	Sets the length of a form (paper) in lines.
where:	n = 1 through 192 (hex 01 through C0) to specify the number of
	lines per page at the current line spacing.
Comment	The forms length set becomes the current forms length. The
	forms length units are always defined in inches; therefore,
	subsequent line spacing changes do not affect the result of this
	command. Changing lpi does not change the forms length.
	The forms length is set to the number of lines defined by the
	quotient of n and the current line spacing so that the units are in
	inches. If the calculated forms length in lines is not an exact
	multiple of the target machine dot size, the forms length value is
	adjusted down to the next possible multiple.
	When forms length is set by the ESC C sequence, the skip-over
	perforation is set to zero.

Form Margins, Set

ASCII Code ESC v n1 n2 n3 n4

Hex Code 1B 76 n1 n2 n3 n4

Dec Code 27 118 n1 n2 n3 n4

Purpose Selects left (n1), right (n2), top (n3), and bottom (n4) form margins.

where: n1 = The width of the left margin (hex value) in character columns at the current cpi. If the requested margin is larger than the current (form width - right margin), the value is ignored.

n2 = The width of the right margin (hex value) in character columns at the current cpi. If the requested margin is larger than the current (form width - left margin), the value is ignored.

n3 = The length of the top margin (hex value) in character lines at the current lpi. If the requested margin is larger than the current (form length - bottom margin), the value is ignored.

n4 = The length of the bottom margin (hex value) in character lines at the current lpi. If the requested margin is larger than the current (form length - top margin), the value is ignored.

Comment A hex value of FF for n1, n2, n3, or n4 indicates that the margin remains unaffected. When set, the right and bottom margins take effect immediately. The left margin takes effect for the current line only if no horizontal motion has occurred for the line; otherwise, it takes effect on the next line. The top margin always takes effect on the next form.

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