Canon imageClass MF5550 (8920A001) is a monochrome multi-function digital printer. This model is suitable if you want to move up from a single function copier, printer or facsmile to a multifunction business center that can provide you with quality laser output, in a modern desktop design. It features copier, printer, fax and scanner. These functions are necessary if you need to keep the pace in any busy office. Canon imageClass MF5550 features a 50 sheet automatic document feeder, all add up to the perfect solution to upgrade from slower indiviual function machines. It features a print and copy letter size documents at a speed of 19 copies and prints per minute. A Super G3 fax makes the handling of faxed documents fast and easy. Canon imageClass MF5550 also features a color scanner with CCD technology ensures that scanned images are more true to the original. You also have the ability to edit scanned text documents with the included OCR software. Canon imageClass MF5550 has a single cartridge system which means you have one easy to replace cartridge without service calls or the inconvenient two cartridge system. The Canon imageClass MF5550 uses Canon X25 (X-25) black toner cartridge, with a page yield of approximately 2,500 at 5% coverage.