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