Oki 790, 791 Appendix D: Printer Commands

IBM￿	Commands￿	￿
		Notes
Function	(ASCII, Decimal, Hexadecimal)
Move to the Left	ASCII: ESC e n1 n2	Move to the left, relative to present posi-
(Backwards)	Dec: 27 101 n1 n2	tion, calculated as
	Hex: 1B 65 n1 n2	(n1 =[n2 x 256])/ 120 inches
		n1=0 to 255
		n2=0 to 255
		n1=n2=0: no movement
Self Left & Right Margins	ASCII: ESC X n m	Sets left (n) and right (m) margins in
	Dec: 27 88 n m	character columns at current pitch. Once
	Hex: 1B 58 n m	set, margins remain fixed even if charac-
		ter pitch is changed. m must be at least
		10 character space (at 10 cpi) to the right
		of n.
		n=0 to 255; n=0: left margin unchanged
		m=0 to 255; m=0: right margin un-
		changed
Engage/ Disengage	ASCII: ESC U n	n=1: Unidirectional printing On
Unidirectional Printing	Dec: 27 85 n	n=0: Unidirectional printing Off (return
	Hex: 1B 55 n	to bidirectional)
Backspace	ASCII: BS	Prints data in buffer and moves one
	Dec: 8	character to the left according to current
	Hex: 08	character pitch.
Set Print Position	ASCII: ESC DLE @ Pn A1 A2 P1 P2	OKI unique command. Sets horizontal
	P3 P4	position of printhead.
	Dec: 27 16 64 [data]	Pn: specifies number of bytes to follow,
	Hex: 1B 10 40 [data]	range 0 to 127 (MSB ignored)
		A1: specifies if motion is absolute (even
		number) or relative (odd number)
		A2: specifies direction of relative move-
		ment right (even number) or left (odd
		number)
		P1, P2, P3, P4=0 to9: specify print posi-
		tion, in four digits:
		(P1 x 1000) + (P2 x 100) + (P3x 10) + P4
		Unit of print position is 1/ inch in LQ
		360
		mode; 1/ inch in Utility mode.
		240
		Maximum default value for left and
		right margins: 2880 for ML390 Turbo:
		4896 for ML 391 Turbo

102 Appendix D: Printer Commands