I'm looking for a (B&W) home office laser printer for an elderly person, who is an active writer. He uses an inkjet printer right now, but the cost of cartridges is a handicap, and he's not easily able to do resetting, liquid ink refilling, and cartridge cleaning. Ideally this laser printer would be inexpensive, good quality, *and* easily refillable. USB connectivity is fine, but a wifi connection might be nice. I don't care about print speed, duplex, or many paper sizes. Ideas? I'm particularly interested in refillability. What make of cartridges are easiest to refill?