Epson 4000 Benutzerhandbuch

Type in and run the following program. Be especially careful to

include both semicolons. The program produces the printout you see

below.

10 WIDTH "LPT1:",255

20 LPRINT CHR$(27) "*"CHR$(32)CHR$(40)CHR$(0);

30

FOR X=1 TO 120

40 LPRINT CHR$(170);

50

NEXT X

Line 20 selects single-density 24-pin graphics mode (mode 32) and

also reserves 40 columns for graphics. Because 24-pin graphics

requires three bytes of data for each column, line 30 begins a loop to

supply 120 bytes of data. Line 40 contains the number 170, which

produces the first pin pattern shown in the section on pin labels, and

line 50 ends the loop.

With what you know now, you can use the simplest application of

g r a p h i c s - calculating by hand the data to print the graphic image.

While this method is the most tedious, it helps you understand dot

graphics. It is also useful for small graphic elements that are used

many times.