| 摘要 |
PURPOSE:To reduce a noise following selecting action by providing a control means in which moving action of a sheet storage part is continuously performed without stopping while in parallel to conveyance-discharge action of a sheet by selecting a moving speed of the sheet storage part from the plurality of moving speeds by a picture forming mode of a picture forming device. CONSTITUTION:In the case of an action mode for selecting a sheet storage part in each discharge of a sheet by a control means 501, selecting action of the sheet storage part is continuously performed in parallel to sheet discharge action, and a selecting action speed of the sheet storage part is variably controlled. In this way, a number of times of selecting start and stop actions are suppressed to a minimum limit to reduce a noise thereof without disturbing a sheet discharge of a picture forming device while without deteriorating its sheet discharge efficiency further without causing space spread of parts and cost up or the like of a device total unit due to an increase of a current control circuit or the like in a sheet after-processing device. |
