HP OfficeJet Pro 9123 All-in-OnePrinter. Functions: Print, copy, scan, fax. Print technology: HP Thermal Inkjet. Print speed: Black (A4, ISO): Up to 22 ppm; Colour (A4, ISO): Up to 18 ppm; Draft black (A4): Up to 32ppm; Draft colour (A4): Up to 32 ppm. Print resolution: Black (best): 1200 x 1200 rendered dpi; Colour (best): Up to 4800 x 1200 optimized dpion HP Advance Photo Paper 1200 x 1200 dpi input. Monthly duty cycle: Up to 25,000 A4; Recommended monthly page volume: Up to 1500.