| 摘要 |
PURPOSE:To prevent the temperature of a platen glass from exceeding a specified temperature while displaying the original performance of the device to the maximum by constituting the copying machine so that the copied number of pages per time unit is reduced every time the continuously copied number of pieces exceeds a multiple number of threshold values set beforehand. CONSTITUTION:Multiple stages of threshold values of CPM value (the number of recording paper processed per minute) are set in a CPM setting part 8, and it is constructed so that the most appropriate value among them can be selected according to magnification and the continuous processing number of pieces even in the middle of processing. Then, every time the multiple number of threshold values set beforehand is exceeded by the number of continuously copied pieces detected by a number of pieces detection part 10, the copied number of pieces per time unit is reduced. Thus, overheating of the platen glass 1 can be prevented with a simple construction and the processing performance of the device can be displayed to the maximum. |
