Epson FX-80 Specifications download pdf (Page 135)

Both margins

Notice that the left and right margin commands use different num-

bering systems. In Pica Mode the left margin command counts from 0

to 79 while the right margin command counts from

to 80. Keep this

difference in mind when you use the two commands together.

Another difference between the two margin commands is that the

minimum left margin setting is 0, regardless of pitch, but the mini-

mum right margin is the value of the left margin setting plus 2 in Pica,

3 in Elite, or 4 in Compressed.

The left and right margin commands can make a mess of your pro-

gram if you aren’t aware of three more factors. First, since these com-

mands clear text out of the buffer (as CANcel-CHR$(24)-does),

you should not issue margin commands at the end of a program line

that produces a print line. A good rule is: always send your new mar-

gin command before you send the print line.

Second, the left margin command has a profound effect on horizon-

tal tabs. It moves the tab columns horizontally, based on the new left

margin as the zero column. In other words, use this order:

set margins first

set tabs as needed

then send the print line.

The third factor that can affect your new margins and tabs is reset-

ting. Since the FX returns to its default settings whenever you reset the

printer, you must be careful about using the Reset Code-

CHR$(27)"@"--'

m a program and about turning the printer off dur-

ing a series of runs.

Tabs

Your printer contains default horizontal tabs set at every eight

spaces and default vertical tabs set at every other line. You can issue

one command to use these default tabs, or you can issue other com-

mands to change them. You may change tabs in either a regulated

(evenly spaced) pattern or so that the tabs vary. You may also set

vertical tabs in sets, called channels.

In this manual, we often use the terms column and row to refer to

the positioning of dots .within a matrix or, in graphics, on a page. In

this chapter we will use the terms column and row instead to refer to

the positioning of characters on a page.

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Epson FX-80 Specifications Page 135