HP LaserJet 4250dtn Printer, LaserJet. Maximum resolution: 1200 x 1200 DPI, Maximum duty cycle: 200000 pages per month. Print speed (black, normal quality, A4/US Letter): 43 ppm, Print speed (black, draft quality, A4/US Letter): 43, 45 ppm, Print speed (colour, draft quality, A4/US Letter): 24 ppm. Internal memory: 80 MB, Maximum internal memory: 512 MB. Processor clock speed: 460 MHz, Built-in processor: 20KC MIPS. Standard input capacity: 1100 sheets, Maximum input capacity: 3100 sheets