Epson LX-90TM Installation Manual download pdf (Page 20)

do is turn on your computer and type in the programs exactly as you

see them in this manual. If you have any questions, see your Commo-

dore User’s Guide.

Although all the example programs are in BASIC, you can of

course change them to any programming language that you prefer to

use. Simply follow the instructions in the manual for your program-

ming language.

The HomeWriter- and BASIC

In order to send any information to the printer, you must first open

a file for it. A sample statement for opening a file is:

10 OPEN1,4

The 1 in the line above is the file number, and the 4 is the device

number. You can use any number from 0 to

255

for the file number,

but the device number should be

unless you have two printers.

If you have two printers connected to your Commodore, you will

sometimes use another device number. See Appendix C for further

information.

After you have opened a file, you send information to the printer

with a PRINT# statement, such as the sample below:

20 PRINT#1,"THE PRINTER PRINTS THIS"

The PRINT# statement is much like the PRINT statement in BASIC

except that it must be followed by the number of a file that has been

opened and a comma. Anything inside quotation marks after that will

be sent to the printer and printed.

As you will see in programs later in this chapter, you can also send

instructions to the printer with a PRINT# statement.

After you have finished with a file, you should close it using the

format below:

CLOSE1

All you need for this statement is the word CLOSE and the file num-

ber. If you wish, type in and run the three lines above, which form one

program.

Each time you want to see the results of a program, type RUN and

then press

RETURN.

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Epson LX-90TM Installation Manual Page 20