I've had good experience with Brother laser printers. They don't seem to mind being left unused for months at the time. I have a Brother color laser printer and a Brother B&W laser printer-scanner and I like them both a lot.

If you get a printer with a scanner, I recommend using the NAPS2 freeware for your scanning. It works great with a wide variety of scanners, is simple to use but highly configurable, and is a lot less of a nuisance than the proprietary scanning software that comes with most printers. Once your OS has the drivers it needs, you generally won't need the proprietary bloatware that comes with the printer in my experience.

As for leaving resin sitting in a vat for extended periods, I don't recommend it beyond a few days. Sure, you can get away with it like you did, but you can also develop various problems from it. The resin will separate (easily fixed by stirring) but it can also slowly leak out of the vat and make a mess (this happened to me).

I try to make a habit out of emptying my vat (through a filter back into the resin bottle) in order to inspect and/or clean the FEP semi-regularly. I also feel better about not having an open vat just sitting around to potentially get bumped and knocked around. If I am using the 3d printer heavily I don't bother with this, but I know if it's going to sit idle for a week or longer, I go ahead and empty & clean the vat.