HP Officejet 4500 All-in-One Printer, Officejet. Print technology: Inkjet, All-in-one functions: copy, fax, print, scan, Maximum duty cycle: 3000 pages per month. Print speed (black, normal quality, A4/US Letter): 6 ppm, Print speed (colour, normal quality, A4/US Letter): 22, 4 ppm, Print speed (black, draft quality, A4/US Letter): 28 ppm. Maximum copy resolution: 600 x 1200 DPI, Copy speed (normal quality, black, A4): 4.5 cpm, Copy speed (normal quality, colour, A4): 2 cpm. Optical scanning resolution: 1200 x 2400 DPI, Maximum scan area: 216 x 297 mm, Scan type: Flatbed. Fax resolution: 203 x 196 DPI, Fax transmission speed: 3 sec/page, Modem speed: 33.6 Kbit/s