Patent ID: 7823869
Filing Date: 2010-11-02
Classification: B65H

Abstract:
1. A sheet feeder comprising: a sheet feed tray on which a first sheet bundle is stacked at a first position where sheet feeding to a conveyance path can be performed; a conveyance tray on which a second sheet bundle is stacked at a second position adjacent to the sheet feed tray, and which conveys the second sheet bundle to the sheet feed tray and stacks the second sheet bundle on the sheet feed tray after the first sheet bundle is fed, presses an end of the second sheet bundle in a direction perpendicular to a conveyance direction of the conveyance tray to a first side plate after the second sheet bundle is stacked on the sheet feed tray, the first side plate being provided at a side position of the sheet feed tray, and aligns the end of the second sheet bundle; and a second side plate that is disposed at a side position of the sheet feed tray opposite to the first side plate, can be moved in the direction perpendicular to the conveyance direction, and presses an end opposite to the end of the second sheet bundle toward the first side plate when the conveyance tray presses the end of the second sheet bundle to the first side plate.