If you're looking to improve the productivity and lower the operating costs of your business, the B400 Series offers all of that and more. For starters, the four models in the B400 Series deliver up to 30 ppm, with the first page printing in as little as 5.5 seconds. They produce output in black & white that's clear and crisp, using a two-piece consumables system for long-lasting performance. All B400 Series printers come with duplex printing standard, leading to fewer user interventions and savings. In terms of durability and reliability, B400 Series printers are tough - with a monthly duty cycle high as 70,000 pages.