| 摘要 |
PURPOSE:To prevent a copying machine from annoying persons near it, by transmitting a sound signal to a remote place to report it to the operator having a receiver. CONSTITUTION:Information required for opertions of a copying machine such as absence of paper and toner supply is detected by a detector 11, and the output of an oscillator 16 is modulated in a modulator 17 on the basis of contents of information and is transmitted as ultrasonic waves from a transmitter 19. This signal is received by a receiver 12 and is reported to the operator of the copying machine through a speaker 27 by a voice synthesizing circuit 26 on the basis of its contents. Infrared rays or radio waves may be used as a transmission means. When the operator is present near the copying machine, a switch may be switched to allow the copying machine main body to generate sounds. |
