7265 Programmer’s Manual 8Copyright © 2004 TallyGenicom Chapter 2 ANSIPr inter HandshakingCommands DescriptionDC1 PRINTER READYIn serial interface, if the printer is strapped for XON/XOFF handshaking, thenthe printer sends DC1 to the host to signal that the printer is ready to acceptdata.In parallel interface, if the printer is strapped for select/ deselect by receivedDC1/DC3 codes, then the host sends DC1 to the printer to set the printeronline.Dec 17 Hex 11DC3 PRINTER NOT READYIn serial interface, if the printer is strapped for XON/XOFF handshaking, thenthe printer sends DC3 to the host to signal that the printer cannot, for themoment, accept any more data.In parallel interface, if the printer is strapped for select/ deselect by receivedDC1/DC3 codes, then the host sends DC3 to the printer to set the printer toStandby. In Standby, the printer will accept and acknowledge data from theinterface, but will discard all data received.Dec 19 Hex 13ETX ETX/ACK COMMUNICATION PROTOCOLIn serial interface, if the printer is strapped for ETX/ACK handshaking, then thehost sends the ETX control code at the end of a block of data.Dec 3 Hex 03ACK ETX/ACK COMMUNICATION PROTOCOLIn serial interface, if the printer is strapped for ETX/ACK handshaking, then theprinter sends an ACK in response to and ETX from the host to indicate that it isready to receive more data.Dec 6 Hex 06
