| 摘要 |
PURPOSE:To finely adjust the state of an image so as to meet user's requirements by changing the standard level value of every level of a manual notch which adjusts the producing condition of the image stepwise to a desirable value. CONSTITUTION:A service switch circuit which changes the standard level value initially set every adjusting level of the manual notch to the desirable level value is provided in an operation control part CPU 6. And it is constituted so that the respective image producing conditions of an exposure lamp voltage value, a developing bias voltage value and an electrifying current value can be respectively and independently changed. The standard level value initially set every step of the manual notch is stored in the service switch circuit and a set level value after changing operation is performed is made to restore to the initial set level value in need. Thus, the state of the image can be finely adjusted so as to meet the user's requirements. |
