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Appendix
Specifications of Interfaces
USB Interface
USB interface port
USB type-B port
USB transmission specifications
USB function
USB descriptor
Overall specifications According to USB 2.0 specifications
Transmission speed USB Full-Speed (12 Mbps)
Transmission method USB bulk transmission method
Power supply specifications USB self power supply function
Current consumed by USB bus 2 mA
USB packet size
(with full-speed connection)
USB bulk OUT (TM) 64 bytes
USB bulk IN (TM) 64 bytes
USB device class Both USB vendor-defined class and USB printer class are
supported.
To set the USB device class, see
"Software Settings" on page 57.
USB vendor-defined class USB printer class
Vendor ID
04b8h 04b8h
Product ID
0202h 0E21h
String Descriptor
Manufacturer EPSON EPSON
Product TM-T88VI TM-T88VI
Serial number Character string based on the
product serial number
Character string based on the
product serial number
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