| 摘要 |
PURPOSE:To reduce the operation of a user by recognizing the state of an original on the basis of the ratio of two or more length of originals. CONSTITUTION:When a copy start key is depressed after the setting of a mode, prescanning is executed to detect the coordinates of an original, the positions X2, Y1 and size X3-X2, Y4-Y1 of the book original are calculated and copying paper size PS-x, PS-y are set. In case of printing only the left page, the XMiN of trimming coordinates is set to X2, XMAX is set to X3, YMiN is set to y1, and YMAX is set the U coordinates (y1+y4)X0.5 of the center of the book, and then said centering is performed. The reverse position of an optical system is set on a reverse position P by adding a slight margine to the YMAX. These data are set in a RAM. Thus, the left-half image of the book original can be printed out on the center of a sheet in accordance with the found coordinates. |
