Bit Image Mode, Quadruple Density - Printronix P3000 Series User's Reference Manual

Bit Image Mode, Quadruple Density

P–Series
Serial
Purpose
Expression
where
NOTE: The DATA can be expressed in a CHR$(DATA) format with the appropriate decimal
values of the ASCII characters supplied, especially in cases where the dot patterns of non-
printable characters are required.
Comment
Example
NOTE: Depending on the host computer system, it may be necessary to include a width
statement within the BASIC program.
6–12
ASCII
N/A
ESC Z
Selects Quadruple Density Bit Image graphics.
CHR$(27);"Z";CHR$(n1);CHR$(n2);"DATA"
n1 + 256 n2 define the number of data bytes to follow.
DATA = ASCII characters for the dot pattern bytes.
Quadruple Density printing may reduce print speed to half. For detailed informa-
tion, refer to the Bit Image section in the Graphics chapter.
The printed density in this mode is 120 dpi horizontal and 72 dpi vertical when se-
lected from the Data Processing print mode or 180 dpi horizontal and 96 dpi vertical
when selected from the Correspondence print mode.
The following example produces quadruple density graphics of the pattern used in
the Single Density Bit Image Mode example. Note that the amount of data must be
quadrupled for quadruple density (the data is used 108 times rather than 27).
Hex
N/A
1B 5A
Decimal
N/A
27 90
Programming