Справочник Пользователя для Epson LX-80

Line 20 begins a loop to produce multiple print lines. Lines 30 and

40 were covered above, but an LPRINT is added to line 50 to pro-

duce a line feed after line 40. Lines 60 and 70 are like lines 30 and 40

except that line 70 uses a reversal of the patterns in line 40. As the loop
is executed, the program prints lines 40 and 70 alternately so that the
patterns of the print lines will fit together well.

Notice that the graphics command can be in effect for only one

print line. The command is in lines 30 and 60 so that it is issued each

time a new print line is begun. You cannot print more than one line of
graphics without having the graphics command issued more than
once.

Line 90 is the reset code to return the printer to its defaults.

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

single-density graphics mode, the LX-80 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 de-
scribed in Table 9-1.

9-l. Graphics modes

Single

ESC “K”

60 dots/inch:
480 dots/8” line

ESC “L”

120 dots/inch

960 dots/8 line

2

High-Speed

ESC “Y”

120 dot positions/inch

Double

Faster than Mode 1; does not print

consecutive dots in a row.

3

Quadruple

ESC “Z”

240 dot positions/inch; 1920 dot

 line. Does not print

consecutive dots in a row.

4

Epson

none

 

80 dots/inch;
640 

 line

Matches the screen density of the
QX-10, which makes it easy to do

screen dumps.

 dots/inch:

5

One-to-one

none

(plotter)

 

 line

circles look round. 

6

90 dots/inch none

90 dots/inch;
720 

 line

 

 

 

 

 

 

 

 

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