Printronix ANSI Printer Other Graphics Considerations, Dot Graphics, Repeat Graphics Character

Chapter 2 Graphics

Other Graphics Considerations

•In horizontal format, an LF causes the paper to advance one or two dot rows based on the vertical dot density.

•In vertical format, the paper is advanced as the six dot rows are printed. Spacing is essentially 12 LPI for low density and 24 LPI for high density graphics.

•Escape sequences ending with the following characters are ignored in graphics mode:

KLPQ q t}]!SP B

•Escape sequences ending with the following characters are valid while the printer is in graphics mode:

Ggubmx dr!pes

Dot Graphics

ASCII Code ESC P

Hex Code	1B 50
Dec Code	27 80
Expression CHR$(27);“P”;
Purpose	Enters dot graphics mode at the density and format previously
	selected by the ESC [p1;p2;p3 q sequence.

Discussion Following this sequence the printer prints discrete dots and leaves spaces based on the 1's and 0's in the low order six bits of each byte received, forming graphic dot rows from left to right. Exit from dot graphics mode is via ESC \.

Repeat Graphics Character

ASCII Code ESC [p1 b

Hex Code	1B 5B p1 62
Dec Code	27 91 p1 98

Expression CHR$(27);“[p1b”;

Purpose Repeats the single preceding character p1 times.

Discussion If p1 is 0 or unspecified, it is set to 1. The maximum value for p1 is 32,767. Only valid in the dot graphics mode.

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