Bit Image Mode, Double Density Double Speed - Printronix 9012 User's Reference Manual

BIT IMAGE MODE, DOUBLE DENSITY DOUBLE SPEED

ASCII Code:
Hex Code:
Purpose:
Expression:
where:
NOTE: The DATA can be expressed in a CHR$(DATA) format with the
appropriate decimal values of the ASCII characters supplied especially in
cases where the dot patterns of nonprintable characters are required.
Comment:
Example:
NOTE: Depending on the host computer system, it may be necessary to in
clude a width statement within the BASIC program.
P9012 Programming
P-SERIES
N/A
N/A
Prints graphics at twice the speed of Double Density (same speed as Sin
gle Density) by ignoring adjacent dots.
CHR$(27);"Y";CHR$(n1);CHR$(n2);"DATA"
n1 + 256 n2 define the number of data bytes to follow.
DATA = ASCII characters for the dot pattern bytes.
For detailed information, refer to the Bit Image section in the Graphics
chapter.
The following example produces Double Density Double Speed Bit Im
age graphics of the pattern used in the Single Density Bit Image Mode
example. Note that the amount of data must be doubled for double den
sity (the data is used 80 times rather than 40).
SERIAL MATRIX
ESC Y
1B 59
6-11