It is necessary in golf to mark your ball once it is on the green in order to allow players further away to putt. If players did not mark their golf balls, then other players might hit the ball with their ball when they putt. Marking a golf ball on a green must be done properly and according to the rules of the game, or players can be subject to penalties.

Fuji Xerox Co., Ltd. is a joint venture partnership between the Japanese photographic firm Fuji Photo Film Co. (75%) and the American document management company Xerox (25%) to develop, produce and sell xerographic and document-related products and services in the Asia-Pacific region. Its headquarters is in Midtown West in Tokyo Midtown, Akasaka, Minato, Tokyo, Japan. Fuji Xerox is the world's longest running joint venture between a Japanese and an American company.