PRINT SPEED BLACK (ISO, A4) Normal: Up to 43 ppm (default) ; Up to 50 ppm (HP High Speed) [1]FIRST PAGE OUT (READY) Black: As fast as 5.9 sec [2]FIRST PAGE OUT (SLEEP) Black: As fast as 10 sec [2]PRINT QUALITY BLACK (BEST) Up to 1200 x 1200 dpiPRINT RESOLUTION TECHNOLOGIES 300 dpi, 600 dpi, HP FastRes 1200, HP ProRes 1200DUTY CYCLE (MONTHLY, A4) Up to 150,000 pages [3] Duty cycle is defined as the maximum number of pages per month of imaged output. This value provides a comparison of product robustness in relation to other HP LaserJet or HP Color LaserJet devices, and enables appropriate deployment of printers and MFPs to satisfy the demands of connected individuals or groups.RECOMMENDED MONTHLY PAGE VOLUME 2,000 to 7,500 [4]PROCESSOR SPEED 1.2 GHzPRINT LANGUAGES HP PCL 6, HP postscript level 3 emulation, native PDF printing (v 1.7), Apple AirPrint™6.86 cm (2.7 in) QVGA LCD (colour graphics)REPLACEMENT CARTRIDGES CF289A HP 89A Black Original LaserJet Toner Cartridge (5,000 pages);