FACSIMILE DEVICE

PURPOSE:To perform facsimile transmission with high reliability, by reading a received picture with a photoelectric converter for transmission not operated during the reception, and extracting the amount of characteristic as an electric signal again and discriminating whether or not normal transmission is made with this extracted value. CONSTITUTION:The operation as a transmitter is the same as conventional devices. As a receiver, a signal from a channel 40 is demodulated at a modulator and demodulator 27, communication-controlled 28, signal-processed 29 and converted into a vidual image at a recording converter 30, and a reception reproducing picture 31 is obtained. This picture 31 is converted into an electric signal again at a photoelectric converter 26 and given to a characteristic pickup device 36. The ratio of the black picture elements to all the picture elements is picked up as the characteristic amount from the electric signal. This value is informed to a discriminator 36 and whether or not normal transmission is made is discriminated by taking a threshold value as 0.4. If discriminated as a failure, the information is given to the operator with an alarming device 37 and to the transmission side through a controller 28 and a modulator 27.