SATO CL4NX Programming Reference Manual page 573

[Supplemental explanation]
(1) The printer operates with the slave mode. Connect the printer by specifying printer's Bluetooth Device
Address (BD address) from the master.
(2) Connection may be failed when the authentication mode, packet type and PIN code of the master is different
from the above settings. When the connection is failed, check the authentication level, PIN code by test print,
match the setting of the master and reconnect.
(3) Bluetooth interface and the printer is connected by RS-232C serial interface internally. The transmission
speed is 115200bps.
(4) When the link with Bluetooth is lost (out of area), disconnect from the printer after the supervision timeout
period elapses.
(5) When Bluetooth communication is disconnected while sending print data (STX-ETX), the partly received data
is discarded after the disconnection timeout period elapses.Resend the print data (STX-ETX) if a timeout
occurs. Timeout monitoring is not performed when the disconnection timeout period is 0.
(6) The printer will be buffer over when the receive buffer is full. Please send print data while checking the receive
buffer status by sending ENQ.
(7) ACK/NAK is returned only when the CRC check result is normal when CRC check is enabled.
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