Central Office Systems has been in business for more than 30 years, serving Milwaukee and southeast Wisconsin. The company carries a full line of Konica Minolta copiers, Okidata printers and fax machines and Panasonic fax machines. It also offers various office supplies, such as toner and paper. It offers the Konica Minolta 45-copies-per-minute Bizhub C450 and 35-cpm Bizhub C350 full color copiers. It also sells the Konica Minolta C500, a 50-cpm full color copier. The company also offers various black and white copier models, such as the Konica Minolta 7218, 7235, 7222, 7228, 7145, 7255, 7085 and 1050. Central Office Systems sells various models of Okidata fax machines, such as OKIFAX 4580, 5650, 5780 and 5980. Central Office Systems also sells Panafax UF-490, UF-790, UF-7000, UF-8000 and UF-9000 fax machines by Panasonic. It additionally offers document management and distribution software from Konica Minolta. Central Office Systems is located in New Berlin, Wis.