My RPi400 evolves more and more into my daily driver for my office activities. Here and there I got paper documents to share, so I needed to scan those, for sending them as PDFs around the world.
Many year ago, I purchased a Canon LiDE 30 USB scanner. This scanner is powered by the USB connection only. Until today, I used this particular scanner on a powered USB hub, thinking the power draw would be to great for the RPi400.
Well, I was wrong. Today, I hooked the scanner up to one of the USB3 ports of the RPi400 directly and the scanner worked perfectly.
If you wonder, the Canon LiDE 30 is supported up to Windows Vista 32bit or Mac OS X 10.5 (Leopard) and won't work on anything more modern than that in Microsoft or Apple environments.
However, we are in good luck with linux and the "sane" environment.
On Raspberry Pi linux systems, XSane is available. To my surprise, the RPi400 delivers sufficient current on the USB3 connectors to power my Canon LiDE 30 scanner.
