I have an HP PSC1350 all-in-one-printer, that prints/scans/copies OK in Mint, and in Linux in general. However, it's built-in multicard-reader doesn't work in Mint; it does in openSUSE 11, though.
In Elyssa, when I first insert the card, the led flashes green for a few seconds (reading), then turn to amber (error) and stays. If I turn off and then back on the printer, the led flashes green then it becomes stable green (all OK); however, the device is not mounted, it's not possible to read it, and it's utterly useless.
In openSUSE, it's simple plug-and-play.
I googled a lot, but didn't find any clue. Could it be a kernel issue?