Epson TM-P80 Technical Reference Manual page 52

Bluetooth interface
• Passkey (initial setting: 0000)
• Device name (initial setting: TM-P80_xxxxxx)
The device name is initially set to TM-P80_xxxxxx.
(xxxxxx refers to the last 6 digits of the serial number labeled on the back of your printer.)
Acceptable Characters
Item
Passkey
Device Name
52
Number of characters
4 to 16
1 to 31
Acceptable Characters
30H to 39H, 41H to 46H
(Indicates the number from "0" to "9" and
"A" to "F" in hexadecimal)
20H, 21H, 23H to 7EH
(Character code between 20H and 7EH
and except for the double quotation mark
("))