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commonly referred to as OKI, OKI Electric or the OKI Group, is a Japanese company manufacturing and selling info-telecom and printer products. Headquartered in Toranomon, Minato-ku, Tokyo, OKI operates in over 120 countries around the world. OKI manufactured the first telephone in Japan in 1881, and now specializes not only in developing and manufacturing telecommunication equipment but also in information products and mechatronics products, such as Automated teller machine (ATMs) and printers. Its printer business is operated through OKI Data, under the brand name OKI. OKI had a semiconductor business, which it spun off and sold to Rohm Company, Limited on October 1, 2008. OKI Data Group , which markets its products under the OKI brand, is focused on creating professional printed communications products, applications and services. The OKI Data Group provides a wide range of devices, from printers, faxes and multi-functional products to business applications and consultancy services. OKI Data Americas also markets the OKI proColor Series, a line of digital production printers designed specifically for the graphic arts and production market in North America to offer print solutions for color-critical applications.