Table of Contents
Advertisement
1. An optional leading + or - sign;
2.
An integer part comprising one or more digits
0
through 9;
3. An optional decimal point; and
4. An optional fractional part of one or more digits after
the decimal point.
If parameter n1 is omitted, the value defaults to zero.
Most parameters are absolute values, but in some cases a
+ or - prefix can be used to specify a relative value (see for
example the Horizontal Position later in this appendix).
If a command only accepts absolute values, a
+
or - sign
is ignored.
Terminating character C1 specifies which formatting vari-
able the preceding parameter applies to. If <C1> is an up-
percase letter, this also terminates the escape sequence. If
<Cl> is a lowercase letter, this indicates that more parameter-
terminator pairs «n",><c",» follow which fall under the
same command group (see Command Compression Tech-
niques).
The optional <data> part is needed with those commands
which involve sending binary data
to
the printer, such as a
raster graphic image. In these cases, parameter n1indicates
the number of bytes of data appended to the command in
<data>.2
All commands continue in effect until cancelled by a sub-
sequent command which affects the same printing vari-
ables.
Commands which are invalid, either because they are not
supported by your printer or because they contain syntac-
tical errors, are ignored.
2If
a large amount of data is sent to the printer in error, there may be no
way to flush it from the printer's memory except to turn the printer off
and on again.
HP Emulation Mode
H-9
Advertisement
Table of Contents
