| 摘要 |
<p>PURPOSE:To facilitate double-write control by connecting thyristors as memory elements to a heating resistor, by controlling recording and storage with them turned on, and by writing one-line facsimile information once and twice. CONSTITUTION:Control circuit 4 is placed in memory mode and on the basis of facsimile information, thyristors S11-SMN are turned on. After one-line information is stored in the thyristors, circuit 4 is placed in recording mode and transistor TR0 is turned on. consequently, electric currents of the heating recording level flow through resistances R11-RMN to perform one-line recording at a time. Circuit 4 is returned to the memory mode a fixed time later and then circuit 4 is placed in recording mode at a period a half as long as the recording period of a single-write mode. Next, circuit 4 is returned to the memory mode a fixed time later and the error of information on the next line is judged. When no error is found, circuit 4 is placed in reset mode to turn off the thyristors and circuit 4 is placed in memory mode to turn on the thyristors on the basis of the information on the next line.</p> |
