Epson FX-80 User Manual page 306

The 72 dpi is a one-to-one ratio of horizontal dots to vertical dots.
This can be used to correct distortions caused by the aspect ratio of
CRT screens. The 80 and 90 dpi modes are designed for the CRT ratios
of several popular computers, including the Epson QX-10, the DEC,
the Corvus Concept, and the NEC.
There is also a Nine-Pin Graphics Mode. This is especially useful for
speeding up screen dumps; it is covered in Chapter 13.
Left Margin
You can set the left margin: from 0 - 78 in Pica, 0 - 93 in Elite, and
o -
133 in Compressed.
Master Print Mode Select
A Master Select function contains several combined type styles for
easy access. There are 16 unique Master Print Modes available with a
simple (ESC)"!" CHR$(n) sequence. These can also be combined
with such other modes as Underline and Italic. See Chapter 5 for de-
tails.
FX-80 Enhanced Versions of Graftrax Plus Features
Software
The FX-80 prints at 160 characters per second, compared to 80 cps
on the MX printers. For quiet operation, this can be reduced to half
speed with the (ESC)" s" command.
FX characters are printed in a 9 x 11 matrix (instead of 9 x 7) to
produce a better quality print.
An underlined space can be placed at the beginning or end of a line.
Formerly, if no charactets were printed on either side of the underlined
space, the print head would pass over it.
(ESC) "3 "CHR$(O) and (ESC)" A "CHR$(O) set the line feed to 0
until reset. It is no longer necessary to change an internal switch to
supress a line feed, or to ground wire 14 of the cable in the parallel
port.
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