Reverse Feed - Epson FX-80 User Manual

So the (ESC)
"J"
does not require a "shut-off" code like the other
line-feed control codes. It is executed once, then forgotten.
As
a bo-
nus, it also does its work without returning the print head to the left
margin.
Here's a program that will show off a few of the things you've
learned so far (see if you can figure out what the program will do
before you print it):
NEW
113 LPRINT CHR$(14)"X"CHR$(213);
213 LPRINT CHR$(15);CHR$(27)"j"CHR$(213)"2 ";CHR$(18);
313 LPRINT CHR$(14);CHR$(27)"J"CHR$(213)"Y";CHR$(213);
413 LPRINT CHR$(15);CHR$(27)"J"CHR$(213)"3"
513 LPRINT CHR$(27)"@";"SPECIAL SUPER AND SUBSCRIPTS"
2
X ....
11"' " ..
oJ
SPECIAL SUPER AND SUBSCRIPTS
The first line prints an Expanded X. Line 20 (did it stump you?) does a
reverse line feed (yes, the paper actually feeds through backward!) of
20/216-inch, then prints a 2 in Compressed pitch. This reverse feed
sets the number 2 well above the normal position for superscripted
characters. Line 30 prints an Expanded
Y
(back on the same line as the
X) after a 20/216-inch forward paper feed. Line 40 does one more
forward feed to print a subscripted 3. And line 50 returns all to nor-
mal.
Reverse
feed!?!
(n/216")
That's right, the FX-80 has reverse feed! (ESC)"j" activates the
command, and it operates just like the (ESC)
"I"
feed: an immediate,
one-time-only line feed without a carriage return. The difference is
that the paper feeds in the opposite direction. If your computer cannot
send lower-case letters to the printer, you will have to use the numeric
value for
"j"
(CHR$(106».
86