The Work Force Pro WF-5110DW has an up to 50 percent lower cost per page than competitive color lasers, saving you money as you take advantage of this printers high capacity ink cartridges of up to 4, 000 pages&sup 2;. & there are fewer parts to replace than a laser. The WF-5110DW uses up to 80 percent less power than competitive color lasers thanks, in part, to its no heat technology. No ozone gases are emitted, & an enhanced quiet print mode & no fan noise during or after printing makes it absolutely ideal for the work environment.