GoDEX RT700i series - Manual (Page 74)

Appendix
藍芽設定
搜尋裝置
Wait a second, keyboard shows one of indicator
is flashing then it will connect successfully
Printer is connecting to K810 keyboard
or Select
PressKey3 Secs to Enter Menu
* ** The Wireless icon on LCD display will be turning from gray to blue when devices connect successfully.
Notice
Press  button back to SETTING PAGES
Printer Setting