Concerning the first 2 points I've always been very happy with the Kyocera FS-C5150DN that I bought maaany years ago. It's best if you check beforehand on thei

Concerning the first 2 points I've always been very happy with the Kyocera FS-C5150DN that I bought maaany years ago. It's best if you check beforehand on their download page the availability of drivers for your OS and device (e.g. PPD for Linux & CUPS for mine is listed here: https://www.kyoceradocumentsolutions.ch/de/index/service_support/download_center.false._.FSC5150DN._.DE.html https://www.kyoceradocumentsolutions.ch/de/index/service_sup... ). Mine is connected over LAN. I print very rarely and so far it always worked fine (I'm still using the provided cartriges - I guess that so far I printed with them ~400 pages, usually duplex). I didn't worry much about the gases because I use the printer too rarely.