Epson LX-90TM Manuale Utente

Although all the examples so far in this chapter have been in the

single-density graphics mode, the LX-90 offers five other eight-pin

density modes and two nine-pin ones. Nine-pin graphics is not neces-

sary for most uses, but you can find its command (ESCape "^") in

Appendix B. All the eight-pin densities and their commands are

described in Table 8-1.

Single

ESC “K”

60 dots per inch;
480 dots per 8” line

Low-Speed

ESC “L"

Double

120 dots per inch;

960 dots per 8” line

High-Speed

ESC “Y”

2

Double

Same density as Mode 1,

but faster; does not print
consecutive dots in a row.

Quadruple

ESC “Z”

3

240 dot positions per inch; 1920
dots per 8” line; does not print
consecutive dots in a row.

4

CRT

none

graphics

80 dots per inch;
640 dots per 8” line

One-to-one

none

(plotter)

72 dots per inch;

5

576 dots per 8” line; produces

the same density horizontally as

vertically

6

CRT

none

90 dots per inch;

graphics II

720 dots per 8” line

You are familiar with the command format that uses the ESCape

code and a letter, but LX-90 graphics commands can also be in the

following format:

LPRINT CHR$(27)"*"CHR$(m)CHR$(n1)CHR$(n2);

with m being the mode number found in the left column of Table 8-1.

As usual, nl and n2 reserve the number of columns for graphics. The

seven modes include six densities, with two speeds for double-density.

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