| 摘要 |
PURPOSE:To simplify remarkably installation and moving of each device by using a bidirectional wireless optical communication device as a signal transmission means between respective devices. CONSTITUTION:The course of a cable communication is constructed so that it will be carried out through a bidirectional wireless communication. In other words, an infrared photodiode (photodetector) 22, and infrared ray LED (light emitting element) 23 are provided at a board side B and in a state where the board B and a copying machine C are installed after being coupled each other so that they can be used as a blackboard mode and at respective positions in the copying machine that are opposite to the photodetector and light emitting element 22 and 23, the infrared LED (light emitting element) 21 and the infrared photodiode (photodetector) 24 are arranged at an inner side of an original board OB. Receiving instructions from each operation parts 45b and 45c, microprocessors 40b and 40c operate load 42b in accordance with signals of respective sensors represented by the sensors 41b and 41c. |
