Ricoh Aficio AP410n B/W Laser Printer 402353 372 Mhz processor, standard 128MB memory (upgradeable to 256MB) Fast 28 pages per minute print speed Standard input capacity of 500-sheets, Maximum 1,600-sheets with 2 - 500 sheet optional trays Optional Automatic Duplex Unit Up to 1,200 x 1,200 dpi resolution