| 摘要 |
PURPOSE:To increase the speed of transmission, by proceeding to the next step in correspondence to the presence or absence of a black signal on each line memory after a minimum necessary delay time. CONSTITUTION:The record signal is supplied consecutively from a record signal terminal 3, and a train of effective record signals corresponding to the effective period shown by a horizontal tag signal is sent to a switching circuit 6. The record signals equivalent to the first one line are accumulated in the first line memory 7. The signal is sent to an FF8 simultaneously, and the FF8 is set when a black signal exists in the signals equivalent to a line. The FF8 is not set when the record signals equivalent to a line are all white signals. The output of the FF8 are sent to delay means 10 and 11, and the means 10 is selected by the set output. Then the record paper is fed by an extent equivalent to a line after a time during which the record head of a recording circuit can well cooled. The means 11 is selected in the case of a reset output, and the record paper is fed by an extent equivalent to a line after a minimum necessary time which is limited mechanically. |
