Epson FX-80 User Manual page 307

Codes with ON/OFF options (such as Underline, Unidirectional,
Super/Subscript, Expanded, Proportional, and Half-Speed Modes)
acknowledge the printed 1 and 0 (ASCII 48 and 49) as well as ASCII 0
and 1. (Note that Proportional and Half-Speed Modes are new to the
FX-80.) Thus (ESC) "sO" is the same as (ESC) "s"CHR$(O).
Horizontal and vertical tab setting sequences can be terminated
with any value less than or equal to the last designated tab stop.
Both horizontal and vertical tab stops are set in the current pitch
and line spacing. Once set, their positions on the page do not change
regardless of subsequent changes in the line spacing or pitch.
Note that the default tab settings do change from single width to
Expanded print. See Chapter 9.
Backspace works in all 6 pitches. (In Graftrax Plus, it only went
back one Pica position when the printer was in Expanded Mode.)
There are 128 unique typestyles available in the FX-80. Different
combinations of Elite, Expanded, Pica, Double- Strike, Emphasized,
Script, etc .... are covered in Chapter 5. (Note that the Elite pitch is
new to the FX-80.)
Superscript and Subscript, when canceled with (ESC) "T", return
to the previous mode-either Single- or Double-Strike. (In Graftrax
Plus they returned only to Double-Strike.) Also, (ESC)" H" no longer
cancels Superscript and Subscript.
Script characters can also be printed in Expanded and Emphasized
modes on the FX-80, which was not possible on the MX printers.
Switches 2-3 and 2-4 have exchanged functions. Switch 2-3 now
controls skip-over-perforation; Switch 2-4 controls automatic line
feed with carriage return.
The Double-Strike creep noted in the Graftrax Manual (pages 6-9
and 6-10) has been eliminated.
Seven-bit computers can enter Graphics Mode on the FX-80 with
the high-order bit set, although to little purpose.
N2 in the (ESC) "K" CHR$(N l )CHR$(N 2 ) sequence no longer works
modulo 8. For example, 128 no longer works as a 0, so sending a 128
for N2 sets the number of columns to Nl
+
256*128
=
Nl
+
32768.
Yipes! If you have the nerve to send it that much data, the printer
prints one complete line of graphics (480 columns in (ESC) "K") and
ignores everything else until the graphics requirement is filled. Then it
continues printing on the next line as if nothing strange had happened.
276