Ticket Program Description - Epson FX Series User Manual

Ticket Program Description

This is not a complete explanation of the program. That's what the
rest of the manual is for. But this brief, line-by-line description should
help those of you who wish to analyze the program.
Stores values in variables for easy access. E$ holds the ESCape
10
code, CHR$(27).
20 Uses ESCape
ESCape "D" sequence to set a horizontal tab stop at column 26.
30 Uses the ESCape ":" sequence to copy the entire ROM character
set into RAM.
Designates RAM as the source for the active character set.
40
50 Prepares the printer to redefine characters "0" through ":".
60 Sets a counter for the
attribute byte of each new character.
70 Reads the data that defines the letters
15 for additional information on lines 30 through 70.)
80 Turns on the Unidirectional Print Mode.
90 Prints the top of the ticket and sets the line spacing to 6/72-inch.
100 Prints the newly defined symbol "7" (left ticket border), tabs to
the next stop, prints the other border (9) and sets the line spacing
back to 7/72-inch.
10
to set the line spacing to 7/2X-inch and the
"1"
letters being defined, and selects the
11
sets of ll). (See Chapter
(11