Bluetooth Protocol; Security - Epson TM-P60 Technical Reference Manual

1.6 Bluetooth Protocol

The protocol for printing to the TM-P60 via Bluetooth is shown below.
Printing data
abcd
Software
Printing application
provided
by the
customer
Bluetooth connection
tool
Bluetooth module
Software
Hardware
The TM-P60 operates as the slave device when Bluetooth is used. Communication settings etc.
are made on the master device.
The master Bluetooth device comes loaded with a mechanism to connect via the Bluetooth
protocol but is not loaded with a printing application. The user must therefore develop an
application for the master device for printing to the TM-P60.
Epson does not provide a driver for the master Bluetooth device. Use the "ESP/POS Application
Programming Guide" in order to develop a print application.

1.6.1 Security

Bluetooth uses a frequency hopping (FH) method that changes frequency quickly and often
when transmitting. This method makes transmitted data very difficult to intercept.
Bluetooth uses radio waves that have a smaller range compared with wireless LAN, which
limits the Bluetooth communication range. The limited range of the radio waves also makes data
interception difficult.
Bluetooth also uses a passkey authentication system when communicating between new
Bluetooth devices. An encryption function encrypts the communication data as well, making it
very difficult for data to be decrypted by an external device.
Rev. C
Host Device
(Master)
SPP connection
TM-P60 Technical Reference Guide
TM-P60
(Slave)
Printing hardware
software
Bluetooth
host software
Bluetooth module
Software
Hardware
General Information 1-7