unfuck the paint machine

[Roomba]

It's entirely possible to fix, I've done it several times myself. I kinda like the little bit of work you have to put in to get it up and running, but I think that at the very least the requirement to refill it with paint should be removed so you can fix it on rounds where the QM doesn't exist/is being rude, and/or remove the failure rate entirely - it doesn't add anything but tedium, since you can just scan the broken one and keep printing them out until you get a fixable one.