Brother TD-2120N - Manual (Page 49)

Raster Command Reference
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Appendix A: USB Specifications
Appendix A: USB Specifications
USB specifications 1.1
Item Description
Vendor ID 0x04F9
Product ID
TD-2020 : 0x2055
TD-2120N : 0x2057
TD-2130N : 0x2058
Class
Printer
Mass storage
Character string for
manufacturer
Character string descriptor: 0x01
0x0409:
“Brother”
Character string for
serial number
Character string descriptor: 0x03
0x0409:
“000000001”
Last twelve digits of the printer ’s serial number
Device speed Full speed
Number of interfaces 1 (No alternate interfaces)
Power supply Self- powered (As a printer class, Bus power is also set to “ON”.)
End point 1
In bulk (Sends the status from the printer to the computer.)
Maximum packet size: 64 bytes
End point 2
Out bulk (Sends print commands and data from the computer to the printer.)
Maximum packet size: 64 bytes