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The Function Codes
~
:ott:'
REMARKS:
When the ESC "P" ... code is sent to the
printer, the existing vertical tab positions are
cancelled. The new vertical tabs are set to line
n1, n2, n3, etc. The CHR$(O) character is used
to end the command. The value of
n
should be
between 1 and 255, and n1 should be less than
n2, n2 less than n3, etc.
EXAMPLE:
LPRINT CHR$(13);CHR$(27);"P";CHR$(15);
CH R$(30);CH R$(O);
FOR I
=
1 TO 2: LPRINT CHR$(11);
I: NEXT I
... advances the paper to the top of form and
prints the numeral 1 on line 15 and the numeral
2 on line 30.
PURPOSE:
Send a one-time-only
vertical line
feed of
n
lines.
FORMAT:
ESC "a"n
CHR$(27) CHR$(97) CHR$(n)
REMARKS:
When this command is sent, it causes the
paper to be advanced
n
lines vertical feed.
Value of
n
must be between 1 and 127. This
command does not change the present vertical
tab.
EXAMPLE:
LPRINT CHR$(27);CHR$(97);CHR$(15)
... causes the paper to advance 15 vertical
lines.
COMMANDS TO CONTROL THE HORIZONTAL
POSITION OF THE PRINT HEAD
These commands are used to control the horizontal position of
the print head.
PURPOSE:
FORMAT:
Return the print head (carriage) to the next
print position.
CR
CHR$(13)
133
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