Epson TM-m50II Technical Reference Manual page 114

XON/XOFF
When XON/XOFF control is selected, the printer transmits the XON or XOFF signals as follows.
The timing of the transmission varies depending on the conditions configured as BUSY.
Signal
XON When the printer goes online after it is turned on (or
after it is reset using the interface)
When the receive buffer is released from the buffer
full state
When the printer switches from offline to online
When the printer recovers from an error using some
ESC/POS commands
XOFF When the receive buffer becomes full
When the printer switches from online to offline
Code
The hexadecimal numbers corresponding to the XON/XOFF codes are shown below.
• XON code: 11H
• XOFF code: 13H
Printer status
Condition for BUSY
Receive buffer full/
Receive buffer full
Transmit Transmit
Transmit Transmit
- Transmit
- Transmit
Transmit Transmit
- Transmit
Appendix
Offline
114