IBM 4400 Bit Image Mode, Single Density

Bell
119
Bell
ASCII Code BEL
Hex Code 07
Dec Code 7
Purpose Sounds the printer's buzzer/beeper.
Comment The BEL function sounds the buzzer/beeper for 0.2 seconds
upon receipt of this command.
Bit Image Mode, Single Density
ASCII Code ESC K n1 n2
Hex Code 1B 4B n1 n2
Dec Code 27 75 n1 n2
Purpose Selects Single (Normal) Density Bit Image graphics.
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 format with the appropriate decimal
valuesof the ASCII characters suppliedespecially in cases where the
dot patterns of nonprintable characters are required.
Comment For detailed information, see the Bit Image section in Chapter 8,
“Graphics.”
Example The following example produces a pattern of Single Density Bit
Image graphics. The 9 data bit pattern is repeated 27 times.
Compare this example to the double density and quadruple
density examples.