Printronix P3000 Series - Manual (Page 96)

Programming 6–10
Bit Image Mode, Double Density
ASCII Hex Decimal
P–Series N/A N/A N/A
Serial ESC L 1B 4C 27 76
Purpose Selects Double Density Bit Image graphics.
Expression CHR$(27); ” L ” ;CHR$(n1);CHR$(n2); ” DATA ”
where n1 + 256 n2 define the number of data bytes to follow.
DATA = ASCII characters for the dot pattern bytes.
NOTE: The DATA can be expressed in a CHR$(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 Double Density printing may reduce print speed to half. For detailed information,
refer to the Bit Image section in the Graphics chapter.
Example The following example produces Double Density Bit Image graphics of the pattern
used in the Single Density Bit Image Mode example. Note that the amount of data
must be doubled for double density (the data is used 54 times rather than 27).
NOTE: Depending on the host computer system, it may be necessary to include a width
statement within the BASIC program.