| 摘要 |
PURPOSE:To effectively correct a picture slipping of a multiple picture by arranging a picture size adjusting means which independently changes the line direction size of a recording image of a multiple picture means at each recording means. CONSTITUTION:A copier has three line sensors 101 on which filters of red, green and blue are applied, and one sheet of color draft is read by scanning the sensor 101, and electric image signals with three colors are generated. After performing a white correction and black correction of the image for respective color signals by a shading correction circuit 103, the brightness data (R, G, B) of the three colors is converted to density data (C, M, Y) by a LOG conversion circuit 104. Then, at a UCR (under color remove) circuit 105, minimum data of the density data is made black data, and C', M', Y' are made new density data. After correcting the signal 106 of C' by a picture slipping correction circuit 110, a laser 117 which is input in a laser driver 113 and performs a picture forming is generated. |
