| 摘要 |
PURPOSE:To obtain the titled signal supplying circuit with a simple constitution which can supply a selection signal of a thermal head group and a picture signal data to the thermal head, by using a shift register. CONSTITUTION:A facsimile device contains 27 groups of thermal head, and each of these groups has a picture signal input of 64 bits. A shift register (SR) 7 for selection of 27-bit groups and an SR8 for 64-bit picture signal data are set in series as shown in the figure. The picture signal data of 64 bits and the group selecting signal data of 27 bits in which just one bit is ''1'' are fed serially to the SR7 and SR8 in accordance with the prescribed clock given from an input terminal 9. When these data are completely stored in the SR7 and SR8, the output signal is sent to the SR7 and SR8 by a means (not shown in the figure. Then just one of the outputs 71-727 of the SR7 is set at ''1'', and the head groups are selected. Then the picture signal data 81-864 of the SR8 are sent to the selected head group to be recorded there. |
