MFD HP Laser MFP 135ag A4, Print, copy, scan, USB Print speed (A4): Up to 20 ppm Print resolution: Black (best): Up to 1,200 x 1,200 dpi; Technology: ReCP Memory: 128MB Processor: 600MHz Control panel: 2-line LCD and keypad Connectivity: USB 2.0 high-speed Monthly duty cycle: Up to 10,000 pages A4 Recommended monthly page volume: 100 to 2,000 pages Standard print languages: SPL Media handling:  Standard input: 150 sheet input tray                                   Standard output: 100 sheet output bin Cartridge:  HP 106A Black Original Laser Toner Cartridge (~1,000 pages)