A4, Print, copy, scan, USB Print speed : Up to 20 ppm Print quality : Up to 1200 x 1200 dpi Processor speed: 600 MHz Memory: 128 MB Interface: Hi-Speed USB 2.0 port Paper handling input, standard: 150-sheet input tray Paper handling output, standard: 100-sheet output Scanner type: Flatbed Scan resolution, optical: Up to 600 ppi Recommended monthly page volume: 100 to 1000 pages Duty cycle (monthly, A4): Up to 10000 pages Cartridge: HP 106A Black Original Laser Toner Cartridge (~1,000 pages) What's in the box: HP Laser MFP 135a Printer, Preinstalled introductory HP Laser Black print cartridges (500 pages), Setup guide,Reference guide, Regulatory statements flyer, Power cord