HP (Hewlett Packard) LaserJet 4050 (C4251A) is a monochrome (black and white), workgroup printer. It has a print resolution of 1200 x 1200 dpi with HP's Resolution Enhancement technology, which makes each print clearer and sharper. It has a print speed of 17 pages per minute with the first page out in 13 seconds. The HP LaserJet 4050 has a 600 sheets total input capacity and 300 sheets output capacity. It includes one 100 sheet tray and one 500 sheet tray. It's media types are transparencies, envelopes, labels, plain paper, business cards. It's media sizes are Legal, A4 and Letter A Size. It has a monthly duty cycle of 65,000 pages and a 1 year manufacturer warranty. It also features manual duplexing, 8 MB RAM, infared and parallel connectivity. HP LaserJet 4050 uses 27A and 27X black cartridge. Cartridge model numbers are C4127A and C4127X.