Ricoh Company, Ltd. (株式会社リコー Kabushiki-gaisha Rikō) is a Japanese multinational imaging and electronics company. It was founded by the RIKEN zaibatsu on 6 February 1936 as Riken Sensitized Paper (理研感光紙 Riken Kankōshi). Ricoh's headquarters are located in Ricoh Building in Chūō, Tokyo. Ricoh produces electronic products, primarily cameras and office equipment such as printers, photocopiers, fax machines, offers Software as a Service (SaaS) document management solutions such as DocumentMall, document solutions such as GlobalScan, Print&Share and also offers Projectors. In the late 1990s through early 2000s, the company grew to become the largest copier manufacturer in the world. During this time, Ricoh acquired Savin, Gestetner, Lanier, Rex-Rotary, Monroe, Nashuatec, and most recently IKON.