Epson TM-m30 Technical Reference Manual page 54

Buzzer frequency (Pulse 1)
• Does not sound
• Sounds 1 time (initial setting)
Sound pattern (Pulse 2)
Selectable from Patterns A to E
Initial setting: Pattern B
Buzzer frequency (Pulse 2)
• Does not sound
• Sounds 1 time (initial setting)
Communication condition of USB interface
Class
• USB printer class (initial setting)
• USB vendor-defined class
Communication condition of Bluetooth interface
• Device name (initial setting: TM-m30_xxxxxx)
• Passkey (initial setting: 0000)
• Security (initial setting: Low)
• Auto Re-Connect with iOS device (initial setting: Enabled)
Bluetooth communication interval during power saving mode
• Level 1 (Standard) (Initial setting)
• Level 2 (Short)
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The device name is initially set to TM-m30_xxxxxx.
(xxxxxx refers to the last 6 digits of the serial number labeled on the back of your printer.)
By changing the setting to "Level 2 (Short)," you can shorten the time until printing begins or the
time until information is shown on the customer display connected to the printer.
However, because the communication frequency increases, the power consumption of the printer
and the host also increases.
Also, depending on the host, this setting may not be enabled, and the host-specified
communication interval may be used.