IBM 4400 manual Bell

Bell

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 + 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.

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.

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