I'd stay away from Brother, too. Toner can be hard to find and way overpriced, and I've never been impressed with the print quality. To top it off, most Brother printers are unacceptably ugly.
Since you're going for business use, I'd take a hard look at the service time/endurance type specs. For home use, fusers and drum kits last a long time, but for heavy business use, you'll be replacing those parts a few times. Another reason to stick to the HP, Canon, Xerox brands is the reliability and features/ease of setup of the ethernet connection. I've had nightmarish experiences trying to get a Konica/Minolta to behave on the network (mostly the scan to network function).
As an alternative for a small work environment, you could just use a local printer shared over the network. The computer it's attached to has to be turned on at all times you want to print, but I've not encountered a business that shut down computers on a daily basis in several years. This is only a good idea for relatively small offices (< 25 people sharing the printer).