| 摘要 |
<p>PURPOSE:To aim at a distinct improvement in the position registering accuracy of a picture, by measuring a rising characteristic of a registering device disposed inside a paper sheet conveying passage, and according to this result, making up a device so as to control the driving timing of the registering device, in case of a paper sheet conveying device for copying machines and so on. CONSTITUTION:A pulse signal corresponding to the rotation angle of a roller, outputted by a photoencoder 208 attached to a register roller, and each detection signal out of a photosensor 204 and a reflection sensor 205 are inputted into a CPU200 each via a pheripheral interface adapter 201, then a variation in the pulse signal of the photoencoder 208 being inputted according to the specified program is converted into a variation in the rotation speed of the register roller and the value of clutch control timing is calculated, outputting a control command to a motor 209, a paper feed clutch 210 and a register clutch 211 respectively. With this constitution, the clutch control timing comes accurate and the position registering accuracy of a picture is improved.</p> |
