B4550 printer from Oki Printing Solutions is built for efficiency and speed, with expandability to meet your future needs. If you are looking to improve the productivity and lower the operating costs of your business, B4550 digital monochrome printer is made for you. This printer produces black & white output that's clear and crisp in 600 x 2400 dpi resolution, using a two piece consumables system for long lasting, highquality performance and a low cost of operation. In terms of durability, B4550 printer is tough and reliable - with a monthly duty cycle of 40,000 pages. Plus, this model has earned the Energy Star from the U.S. Environmental Protection Agency.