HP (Hewlett Packard) LaserJet 5100tn (Q1861A) is a monochrome (black and white) printer. It has a print resolution of 1200 x 1200 dpi with HP's Resolution Enhancement technology, which makes each print clearer and sharper. HP LaserJet 5100tn has a print speed of 21 pages per minute with first page out in 13 seconds. It has a 850 sheets total input capacity and 250 sheet output capacity, it includes Tray 1: 100 sheet side panal tray, Tray 2: 250 sheet lower paper tray and Tray 3: 500 Sheet Feeder Tray. It has a maximum input of 1,100 sheets. It's media types are paper (plain, letterhead, prepunched, bond, color, rough, vellum, preprinted, recycled), transparencies, labels, envelopes, cardstock. It's media sizes are Executive, Legal, A5, A4 and Letter A Size. It has a monthly duty cycle of 65,000 sheets. It also features 16 MB RAM with HP's Memory Enhancement Technology and parallel connectivity. The HP LaserJet 5100tn comes with a 1 year manufacturer warranty. HP LaserJet 5100tn uses 29X black cartridge. Cartridge model number is C4129X.