Patent ID: 8585052
Filing Date: 2013-11-19
Classification: B65H,G03G

Abstract:
1. An image forming apparatus comprising: a sheet storage unit configured to store a plurality of sheets; a sheet feeding unit configured to separate and feed sheets one by one from the sheet storage unit; a conveyance path configured to convey the sheet fed from the sheet feeding unit to an image forming unit; a discharge unit configured to discharge the sheet on which an image is formed by the image forming unit; a plurality of sheet detection sensors which is disposed along the conveyance path and configured to detect a sheet being conveyed; and a control unit configured to determine whether predetermined time elapses from a detection of a front end of the sheet until a detection of a rear end of the sheet and to control a conveyance of the sheet, wherein, when the control unit determines that the predetermined time has elapsed based on the detection by the sheet detection sensor disposed in a furthest upstream position among the plurality of sheet detection sensors, the control unit controls the conveyance of the sheet so that the sheet detected by the sheet detection sensor of the furthest upstream position is discharged by the discharge unit through the image forming unit and controls the sheet feeding unit to feed a next sheet from the sheet storage unit, and when the control unit determines that the predetermined time has elapsed based on the detection by the sheet detection sensors other than that disposed in the furthest upstream position, the control unit controls the conveyance of the sheet so that the sheet is stopped.