B18.104.22.168 Printers provide a non-legacy port [Logo Program Clarification
Printers use non-legacy port connections such as USB, IEEE 1394, or Ethernet. Printers can also include a legacy parallel interface in addition to the required non-legacy port connections. USB-to-printer port adapters are not considered an alternative non-legacy interface.
FAQ Date: January 31, 2001
B8.1.R Printers - Future Requirements
Announcement of additional future requirements will be published at http://www.microsoft.com/winlogo/hardware/printer/.
B8.1.R.1 USB Printer reports unique serial number
USB printers must report a unique serial number to allow the operating system to differentiate between two identical printers attached to the same system and to support a printer that is moved from one USB port to another.