Epson tm-m30 - Changing the USB Class

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Chapter 2 Installation
2
Changing the USB Class
Follow the steps below to change the USB class to vendor class or printer class.
1
Select [System Preferences] - [Printers & Scanners] to open the "Printers & Scanners"
screen. Double-click the printer in the list to open the print queue screen. 
Click [Settings].
2
Start TM Launcher. Select the [Utility] tab and click the [Open Printer Utility] button.
 Make sure the printer power is on while you change the USB class.
 This modification is unnecessary when the initial setting is USB printer class.