| 摘要 |
<p>PURPOSE:To inhibit noise creation as far as possible by providing both a sheet material ejection interval detection means and a bin travelling speed changing means which changes the travelling speed of a bin on the basis of the detection result. CONSTITUTION:There are provided both an ejection interval detecting means B which detects the ejection interval of sheet material ejected from an image former A and a bin travelling speed changing means C which changes the travelling speed of the bin on the basis of the detection result of the ejection interval detecting means B. When the processing capacity for sheet material ejected from an image former A is detected by the ejection interval detecting means B, the travelling speed of the bin is changed by the bin travelling speed changing means C on the basis of the detection result. So if the processing speed of the image former A is low, the bin travelling speed becomes low so that the noise created by the sheet postprocessor may be inhibited as far as possible.</p> |
