Epson MX-80 User Manual page 51

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How Dot Matrix Printing Wo

But What Do It Mean, Boss

(Well, Rochester,

it's like this . . .)

Where the number " 1 " is printed, the lines are spaced only one dot apart,

instead of the usual 1 2. That's why the letters are printed all over each other.

Check the print-out and find where the spacing is 12. Doesn't that look more like

what we're used to?

Now look at "24". Aha! Double spacing. By sending the high-powered command

in line 5, we plug in our own value of S and make the Printer give us just about

any spacing we want between lines. And, we can do it either inside a program or

at the command level. That ought to kick the mind into overdrive!

LLIST the program.

The line spacing stayed where it was when we stopped the program. It is now the

new "standard", replacing our power-up value of 1/6" and 1 2 dots.

We can however, shift back and forth to the other 2 more or less "standard"

spacings (options " 0 " and "1"). Whenever we select option " 2 " again, the spacing

returns to wherever we set it. Once the spacing is set with a high-powered option

2 command, there are only 2 permanent ways to reset it:

1. Set it back to 1 2 dots per line using option 2 itself

> L P R I N T C H R $ ( 2 7 ) " A "

C H R $ ( 1 4 0 )

C H R $ ( 2 7 ) " 2 "

2. Turn the Printer OFF, then ON.

Option " 2 " in the above format is powerful indeed! Turn the Printer OFF, then

ON, before continuing to the next topic.

WELL