Ithaca PcOS Series 80PLUS Programmer's Manual page 56

Control Codes
Printer Control
Function
ASCII
Hexadecimal
Decimal
IPCL
Where n
Description
Function
ASCII
Hexadecimal
Decimal
IPCL
Page 46
PcOS Series 80PLUS
Control feature commands
[ESC] y <n>
1BH 79H <n>
<27><121><n>
&%Y0 through 9
0 restores configures emulation
1 forces Axiohm emulation
2 forces PcOS Ithaca emulation
3 forces Epson emulation
4 disables IPCL commands
5 enables IPCL commands
6 disables ENQ processing
7 enables ENQ processing
8 enables extended diagnostics
9 prints self-test banner
This command enables and disables command set features. It is possible that
the IPCL commands will interfere with print data. If this is the case, they can
be disabled with an [ESC] y <4>. Once disabled, the IPCL command for
reenablement will not function.
NOTES: Once disabled, the &%Y5 command will not be a valid IPCL code.
IPCL commands are not available in Epson and Axiohm modes.
ESC y <6> and <7> enable and disable the real-time status inquire processing.
The [ESC] y control commands are not processed as they are received, but are
buffered then processed. Because of this, any [ENQ] commands sent after a
disable may be answered. In addition, [ENQ]'s sent after an enable may not be
answered.
Multidrop control
[SOH] <n>
01H <n>
<1> <n>
none
Where <n> is the printer address, addresses of A, B, or C are configurable. In
multidrop mode, the printer must be addressed. This is the addressing
command. If the printer is configured with an address of 'A,' the printer will
operate when addressed. When any other address is sent to the printer, it will
enter print suppress mode. An address of 'Z' is a universal address and will
always activate the printer.
Rev B 4/13/99
Programmer's Guide