Star Micronics XR-1020, XR-1520 manual Select g-pin graphics mode

Select g-pin graphics mode

Mode	ASCII				Decimal			Hexadecimal
Std.	<ESC> “N	n0	nl		27	94	n0 nl	10	5E	n0 nl
	n2	ml	m2	...	n2	ml	m2 ...	n2	ml	m2 ...

Selects one of eight graphics modes depending on the value of n0 and prints g-pin bit-image graphics in this mode. The graphic image is 9 dots high and nZ + n2 x 256 dots wide.

n0	Graphics mode
0	Normal-density	( 60 dots per inch)
1	Double-density	(120 dots per inch)
2	Double-density, double-speed	(120 dots per inch)
3	Quadruple-density	(240 dots per inch)
4	CRT graphics, mode I	( 80 dots per inch)
5	Plotter graphics	( 72 dots per inch)
6	CRT graphics, mode II	( 90 dots per inch)
7	Double-density plotter graphics	(144 dots per inch)

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Maximum width is 8 inches for normal carriage printer, and 13.6 inches for wide carriage printer. ml, m2, ... are byte pairs repre- senting 9 vertical dots each.

In the leftmost position, the most significant bit of ml is the top dot; the least significant bit of ml is the second dot from the bottom; the most significant bit of m2 is the bottom dot; and the other bits of m2 are ignored. Other byte pairs are similar. The number of data bytes must be 2 x (nl + n2 x 256). Dots beyond the right margin are ignored. At the end of bit-image printing the printer returns auto- matically to character mode.

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