OKI C810n. Maximum resolution: 600 x 1200 DPI, Maximum duty cycle: 75000 pages per month, Duplex printing: Optional. Print speed (black, normal quality, A4/US Letter): 32 ppm, Print speed (colour, normal quality, A4/US Letter): 30 ppm, Print speed (black, normal quality, A3): 17 ppm. Internal memory: 128 MB, Maximum internal memory: 128 MB. Processor clock speed: 200 MHz, Built-in processor: PowerPC405. Standard input capacity: 300 sheets, Maximum input capacity: 1460 sheets, Auto document feeder (ADF) input capacity: 100 sheets