The machine performed OK for about 6 months and since then, it constantly and randomly displays "cartridge error" messages. I'm using OEM cartridges, too.I've reset (using # + 3), cleaned cartridge heads, etc., and usually after a while it will start working again. But what a pain to do this every time. The included software for scanning is also awful, with a non-intuitive user interface.I have a Brother B&W; laser that I've been using for many months, and it just works. I'm hoping to find a all-in-one that is just as reliable. It likely won't be an HP.