HP OfficeJet Pro 9023. Print technology: Thermal Inkjet, Printing: Color printing, Maximum resolution: 4800 x 1200 DPI, Print speed (colour, normal quality, A4/US Letter): 20 ppm. Copying: Color copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Color scanning, Optical scanning resolution: 1200 x 1200 DPI. Faxing: Color faxing. Maximum ISO A-series paper size: A4. Wi-Fi. Direct printing. Product colour: Gray Replacement Cartrriges: HP 963