This versatile multifunctional printer packs a lot of features into a compact design printing at 40 black and white a4 page per minute and at 1 200 by 1 200 dpi the sp 4510sf combines speed with quality output with the single pass duplex scanner the sp 4510sf can scan both sides of an original colour document in a single pass for fast distribution to e mail folder usb ftp smb or url the advanced gwnx controller offers sophisticated functionality previously available only from premium pri