| 摘要 |
PURPOSE:To output picture information at a high speed without preparing the replacing time of data newly by providing the titled device with a means to engage in the succeeding picture information to memories during the blanking time of scanning. CONSTITUTION:Picture information memories 20a-20d storing picture information are arranged corresponding to plural laser beam printers and a control circuit 23 is connected to the memories 20a-20d. When a horizontal synchronizing signal is supplied to the circuit 23 and the circuit 23 reads out picture data for several pages which are stored in a large capacity memory 22 to a buffer memory 21. In addition, the circuit 23 supplies a control signal to the memories 20a-20d to read and write data. A reference signal from a reference frequency generator 40 is supplied to scanners 41a-41d in respective laser printers to control the rotation speed and phases. Input data 51a-51d corresponding to respective memories 20a-20d are transmitted after data 50 from the memory 22 to the memories 20a-20d with time division during the blanking period of the picture to output the picture informtion at a high speed. |
