| 摘要 |
PURPOSE:To reduce the time required for matching 011-01n current values of corotrons to each other so as to maintain a high picture quality for a long period by simultaneously matching the AC components of the corotrons in parallel with DC components. CONSTITUTION:This recorder is provided with plural corotrons 011-01n and an arithmetic process controlling means 03 which changes the current value to each corotron 011-01n by calculating the optimum current value upon inputting current value detecting signals to each corotron 011-01n. In addition, current value monitoring sections 021-02n which monitor current values to the corotrons and a high-voltage power source means composed of output sections which output electric currents to the corotrons in accordance with the remote control from the controlling means 03 are also provided to the recorded. The matching of the current value of each corotron is alternately performed in parallel with each other in a time-divided state by referring to the aimed current value table of each corotron and, especially, AC and DC components are individually matched by themselves alternately in parallel with each other in the time-divided state. Therefore, the current value matching time can be reduced sharply at the time of set-up. |
