Compuprint 4247-L03 Programmer Manua - Manual (Page 95)

DC3
Deselects printer (Data Control 3).
ASCII Code DC3
Hexadecimal Value X'13'
Decimal Value 19
In parallel interface, this code causes the printer to enter the standby condition until a DC1 code is
received.
In serial interface, this code is sent from the printer to the host to indicate that it is not ready to receive
data.
Operating System Control
BEL
Bell.
ASCII Code BEL
Hexadecimal Value X'07'
Decimal Value 7
This code causes the buzzer to sound for about 0.5 second.
DEL
Delete.
ASCII Code DEL
Hexadecimal Value X'7F'
Decimal Value 127
In parallel interface, this code causes the last received character to be deleted.
ESC
Escape.
ASCII Code ESC
Hexadecimal Value X'1B'
Decimal Value 27
This code is used as an escape sequence introducer.
Chapter 4. ANSI Emulation Commands 79