User`s manual

Chapter 2 Using the Utility

USB

Configures the USB class.

❏ Printer Class: Configures the printer to the printer class.

❏ Vender Cl

ass (Default Setting): Configures the printer to the vender class.

If you change the USB class from [Vender Class] to [Printer Class], the printer becomes a Printer Class

device. The computer detects the printer as a new Printer Class device and creates a new port.

Using the newly created port, you can print but cannot use the EPSON Status API. The existing port still allows

you to both print and use the EPSON Status API, so you can delete the newly created queue and use the

existing queue instead.

How to distinguish the EPSON Status API available port

Select [Properties]-[Ports] and check the “Port” and “Description”.

•Printer Class

Port: USBxxx

Description: Virt

ual printer port for USB

•Vender Class

Port: ESDPRTxxx

Description: USB TM-T20

• When using the UPOS select [Vender Class].

• When you do not need to use the [Printer Class], using [Vender Class] is recommended.

Printer Class Vender Class