Epson LX-90TM Manuale Utente

If the printer beeps and stops printing when it is not out of paper,

turn the printer off and check to see if the paper is loaded correctly. If

the paper is loaded correctly, turn the printer back on and try to print

again. If the printer beeps and does not print again, take it to a

qualified service person.

Applesoft BASIC does not use PRINT to send data to the screen

and LPRINT to send data to the printer as Microsoft BASIC does.

Therefore, you need to change the programs in this manual some-

what. In most cases all you need to do is to add two lines to each

program and change all instances of LPRINT to PRINT. Add a line at

the beginning of the program that states PR#l and a line at the end

that states PR#0.

For the programs in this manual that contain INPUT statements,

put the line that states PR#l after the INPUT statement.

The format for the WIDTH statement for the Epson QX-10 and

QX-16 computers is:

WIDTH LPRINT 255

There are two common sources of problems with graphics pro-

grams in BASIC:

1. Unwanted codes for carriage returns and line feeds may be inserted

by BASIC if lines are over 80 columns long or if semicolons are not

used at the end of program lines between the graphics command

and its data. See Chapter 7 for the proper format for the WIDTH

statement and for sample programs that show the proper use of

semicolons.

2. If the printer stops during a graphics program, it may not have

received enough data. The printer expects a certain number of pin

patterns, determined by nl and n2 in the graphics command. It

will wait patiently until the quota is full. Note that 9-pin graphics

mode requires two bytes for each column of graphics.

E-4