In the Biociphers lab in the Richards building, we usually rely on one Printer, a Ricoh C3000 at the back of the office. On most operating systems that can search for network printers, it should appear automatically with this model name. Otherwise, at the time of writing, it can be connected to directly at the ip address: lpd://220.127.116.11. If this refuses to connect you should also be able to get the current ip address manually from the lcd panel on the printer.
Drivers for many operating systems (Ubuntu, Windows, OSX) should be available automatically, but if not they can be downloaded from here: http://support.ricoh.com/bb/html/dr_ut_e/re2/model/imc3000/imc3000.htm or the Linux PPD file can be had from here: http://www.openprinting.org/printer/Ricoh/Ricoh-IM_C3000