Some printers do that. Xerox uses their own wsprintwwhich uses http. Why they use their own thing instead of ipp, I have no idea… macOS uses ipp if the printer

Some printers do that. Xerox uses their own wsprintwwhich uses http. Why they use their own thing instead of ipp, I have no idea… macOS uses ipp if the printer supports it. Maybe ipp is not workin well over usb