I have a couple HP Laserjet 4's that I pulled out of the dumpster over a decade ago. At the time KYHillChick was working at a large hospital and they had a "Free to a good home" deal on toner cartridges and no one was picking up the LJ 4's. She snagged half a dozen, and brought them home. Free printing for life!
My advice on B&W is to go on EBAY and get an older laserjet and then buy a toner cartridge for it. Per sheet costs are down around $.08/page.
Be careful with cheap recycled toner cartridges. I had a deal going years ago with a company that recycled toner cartridges for our company's laser printers-- had over 20 in the main building. This company did great things for us for 3 years and then one day started stuffing cheap copier toner in the cartridges. We turned 3 high-end laserjets into doorstops before I caught on.
If I've got any kind of printing to do, I send it to the local Fed-Ex/Kinko's store and it's there when I pick it up.
