
Rev. A Appendix A-9
TM-T88 Series Technical Manual
Notes:
❏ When the remaining space in the receive buffer drops to 16 bytes, the printer status becomes
"buffer full" and it remains "buffer full" until the space in the receive buffer increases to 26
bytes.
❏ The printer ignores the data received when the remaining space in the receive buffer is 0 bytes..
XON/XOFF Transmit Timing
When XON/XOFF control is selected by the DIP switch, the printer transmits XON/OFF to the
host according the table below. Transmit timing differs depending on the DIP SW 2-1 setting.
XON/XOFF transmit timing
(*1) XON is not transmitted when the receive buffer is full.
(*2) XOFF is not transmitted when the receive buffer is full.
Note:
The XON code is <11>H and the XOFF code is <13>H.
Data Format When Using RS-485
Transmission data (8 bits, none parity)
Figure A-1 S-485 Communication data format
B
Printer status
DIP SW 2-1 status
ON OFF
XON
transmission
• When the printer goes on line after turning on the
power or reset using interface.
Transmission Transmission
• When the receive buffer is released from the buffer
full state.t
Transmission Transmission
• When the printer switches from off line to on line (*1). - Transmission
• When the printer recovers from an error through a
command.
-Transmission
XOFF
transmission
• When the receive buffer becomes full. Transmission Transmission
• When the printer switches from on line to off line (*2). Transmission Transmission
1
2
3
4
5
6
7
8
START
STOP
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