Epson MX-80 User Manual page 68

Chapter 9
TRS-80 Mode Escape Codes
The following 4 Escape Codes cluster in two "toggled" pairs. One cancels the
other.
ESCAPE " A " — Causes printing of a normal 8 inch line length. It's the default
mode.
ESCAPE " B " - - Moves both Left and Right margins in about 3/4". leaving
about 6-1/2" for printing. This translates to:
64 Characters in Normal Width
32 Characters in Double Width
105 Characters in COMPRESSED MODE. Indents about 13 characters on
the left and 14 on the right.
ESCAPE"6" — Returns LINE SPACING to 1/6". Opposite of Esc 8.
ESCAPE"8" — Sets the LINE SPACING to 1/8".
Several other ASCII codes are itemized in Appendix B1.
Other Minor Miscellaneous Codes — MX-80 Mode
The CANCEL and DELETE codes do the same thing. Not all computers can send
both, so having both provides a choice.
ASCII 24 — The CANCEL code, erases all printing data in the PRINT buffer, plus
the control codes for DOUBLE WIDTH and COMPRESSED CHARACTER. It
seems to be a sort of after-thought for people who change their mind. Not an
everyday sort of control code. Activated only if switch 1-4 is OFF.
ASCII 127 - The DELETE code. Does the same thing as the CANCEL code. Acti-
vated only if switch 1-3 is OFF.
ASCII 128 - (or ASCII 0). The NULL code. Is used to terminate H or V TAB
setting command sequences.
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