Epson TM-L90 Technical Reference - Page 148

Xon/xoff

Page 148 highlights

XON/XOFF When XON/XOFF control is selected, the printer transmits XON or XOFF signals as follows. Transmit timing differs depending on the memory switch 1-3 setting. Signal Printer status XON XOFF 1) When the printer goes online after turning on the power (or reset using interface) 2) When the receive buffer is released from the buffer full state 3) When the printer switches from offline to online 4) When the printer recovers from an error using some ESC/POS commands. 5) When the receive buffer becomes full 6) When the printer switches from online to offline Memory Switch 1-3 1(ON) 0(OFF) Transmit Transmit Transmit - Transmit Transmit Transmit Transmit - Transmit Transmit Code The XON/XOFF codes are shown below. ❏ XON code: H ❏ XOFF code: H Note: When the printer goes from offline to online mode and the receive buffer is full, XON is not transferred. When the printer goes from online to offline mode and the receive buffer is full, XOFF is not transferred. When memory switch Msw 1-3 is off, XON is not transferred as long as the printer is offline even if a receive buffer full state has been cleared. 148 Appendix

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148
Appendix
XON/XOFF
When XON/XOFF control is selected, the printer transmits XON or XOFF signals as follows.
Transmit timing differs depending on the memory switch 1-3 setting.
Code
The XON/XOFF codes are shown below.
XON code: <11>H
XOFF code: <13>H
Note:
When the printer goes from offline to online mode and the receive buffer is full, XON is not transferred.
When the printer goes from online to offline mode and the receive buffer is full, XOFF is not transferred.
When memory switch Msw 1-3 is off, XON is not transferred as long as the printer is offline even if a
receive buffer full state has been cleared.
Signal
Printer status
Memory Switch 1-3
1(ON)
0(OFF)
XON
1)
When the printer goes online after turning on the power (or reset
using interface)
Transmit
Transmit
2)
When the receive buffer is released from the buffer full state
Transmit
Transmit
3)
When the printer switches from offline to online
-
Transmit
4)
When the printer recovers from an error using some ESC/POS
commands.
-
Transmit
XOFF
5)
When the receive buffer becomes full
Transmit
Transmit
6)
When the printer switches from online to offline
-
Transmit