11-13
Colour plotter printer control codes
Control
codes
used in the text
mode
• Text code
($01)
Places the printer in the text
mode.
• Graphic code
($02)
···Same
as
the BASIC PMOOE statement. Places the
printer in the graphic
mode.
• Line up
($03)
···Same
as
the BASIC PSKIP statement. Moves the
paper
one
line in the reverse direction. The line counter
is
decremented by
1.
•
Pen
test
($04)
···Same as the BASIC PTEST statement. Writes the
following patterns to start ink following from the
pens,
then sets scale
==
1
(40
chr/line), colour =
0.
Black Blue Green
Red
DODO
• Reduction scale
($09)+($09)+($09)
Reduces
the scale from 1 to 0
(80
chr/line).
• Reduction cancel
($09)
+
($09)
+($OB)
Enlarges the scale from 0 to 1
(40
chr/line).
• Line counter set
($09)
+
($09)
+ (ASCII)z
+(ASCII)
I +
(ASCII)
0
+($00)
···Same
as
the BASIC PTEST statement. Specifies the
number of lines per page
as
indicated by the 3 ASCII
bytes
code.
The maximum number of lines per page
is
255. Automatically set to
66
when
the power
is
turned
on
or
the system is
reset.
• Line
feed
($0A)
···Same
as
the BASIC PTEST statement. Moves the
paper
one
line
in
the forward direction.
The
line counter
is
incremented by
1.
• Magnify scale ($OB)
Enlarges the scale
from
2
to
1.
(26
chr/line)
• Carriage return
($00)
Moves the carriage to the left side of the print
area.
• Back space ($0E)
Moves the carriage
one
column to the left. This
code
is
ignored when the carriage
is
at
the left side of the
print
area.
• Form feed ($OF)
Moves the paper to the beginning of the next page and
resets the line counter to
0.
• Next colour ($1
0)
Changes the
pen
to the next colour.
Character scale
• The character scale
is
automatically set to 1
(40
chr/
line) when the power is turned
on.
Afterwards,
it
can
be
changed by the control codes and commands.
• In the graphics mode, the scale can
be
changed within
the range
0 to 63.
• The scale is set to 1 when the mode
is
switched from
graphics to text.
40
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