IBM 4400 User Manual
120
Chapter
5
Configuring the Proprinter III XL Emulation with Control Codes
Bit Image Mode, Double Density
ASCII Code ESC L
n1 n2
Hex Code
1B 4C
n1 n2
Dec Code
27 76
n1 n2
Purpose
Selects Double Density Bit Image graphics.
where:
(
n1 + 256n2) define the number of data bytes to follow.
DATA = ASCII characters for the dot pattern bytes.
NOTE: The DATA can be expressed in a format with the appropriate decimal
values of the ASCII characters supplied especially in cases where the
dot patterns of nonprintable characters are required.
dot patterns of nonprintable characters are required.
Comment
For detailed information, see the Bit Image section in Chapter 8,
“Graphics.”
“Graphics.”
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).
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).