A copy reproduction machine is subdivided into discrete operating modules and coupled together by a shared communication line over which operating messages from and to the modules are transmitted. Each module includes a receiver for intercepting and capturing messages bearing the module's address and...http://www.google.es/patents/US4523299?utm_source=gb-gplus-sharePatente US4523299 - Message transmitting system for reproduction machines and copiers
Message transmitting system for reproduction machines and copiers
