Regarding AirPrint Product Plan
We have contacted the AirPrint Program Team (aairprint@apple.com) but have not received a response.
We manufacture printers with interfaces such as USB, Serial, Parallel, Ethernet, WLAN, Bluetooth, and Powerd USB.
When trying to do an AirPrint Product Plan for WLAN (WiFi) only,
I want to make sure that even if the printer has a USB port, there is nothing to worry about USB.
※ e.g. USB-IF (usb.org) certificate
There seems to be no such content in 'AirPrint Specification Version 2.1.1.pdf'.
If you have any concerns, please share the relevant documentation.
Thank you.