| 摘要 |
PURPOSE:To make exclusive time for control unnecessary, to measure the printing state of a continuous original and background density without malfunction, and to stably control the above including the characteristic of a photosensitive body by controlling a density adjustment means for a n+1 page onwards according to density signal of a first page to nth page of the original when image formation is carried out while carrying out an automatic density adjustment for the continuous original and carrying out copying of a superior reproduction. CONSTITUTION:The device is provided with a control means carrying out adjustment of developed density for each page while detecting the density of each page and controlling at least one of electrification quantity of a photosensitive body 31, light quantity of a light source 3, and developing bias voltage by the developing density adjustment means and controlling the image condition as a fixed value according to the density information of the first page to nth page for the (n+1) page onward for the first page to the nth page of the continuous original 13. |
