| 摘要 |
PURPOSE:To enable to cancel unnecessary part of an original, by providing a means controlling readout of an original image, in reading out and printing out the image stored once in a memory. CONSTITUTION:Normally, an ouput alpha1 of a control signal source 202 is taken as 1 and alpha2 as 0. Thus, only image data of a data bus DB read out from a memory 36 pass through gates 200, 201 to obtain a copy of normal or converted image. But, when 0 is produced for the alpha1, alpha2, during a prescribed time of output scanning of the memory 36, the passing of serial image data is blocked with the gate 200. White is partially copied for the time. This prescribed time is determined in synchronizing with serial address data from a CPU. On the other hand, when the alpha2 of a signal source 202 is made to 1 for the prescribed time, high level is outputted for the time as image data via the gate 201 and black is partially copied. |
