Patent ID: 9108812
Filing Date: 2015-08-18
Classification: B65H,G03G

Abstract:
1. A sheet feeder cassette that can be fitted in and drawn from in a fitted in direction perpendicular to a sheet feeding direction in which sheets of a recording medium are to be fed, the sheet feeder cassette having a front side and rear side with respect to the fitted in direction, the sheet feeder cassette comprising: a bottom for receiving a stack of sheets of a recording medium thereon; a pair of side stopper plates that are respectively provided on the front side and the rear side of the location of the stack of sheets on the bottom in such a manner to be movable in a widthwise direction of the stack of sheets so as to determine a widthwise position of the stack of sheets; and at least one displacement preventive device that is located on the bottom, at a position according to a widthwise position of a loadable maximum size sheet, and that is capable of coming into contact with one of the side stopper plates that is located on the rear side of the location of the stack of sheets, the position of the at least one displacement preventive device being continuously adjustable in the widthwise direction from a first position to a second position, wherein when the one of the side stopper plates that is located on the rear side of the location of the stack of sheets receives force from a stack of the maximum size sheets placed on the bottom at a time of fitting in the sheet feeder cassette, the displacement preventive device pushes back and supports the one of the side stopper plates due to reaction, and wherein the pair of side stopper plates has a pivot center that is located relatively downstream with respect to the sheet feeding direction; and the displacement preventive device is located upstream, with respect to the sheet feeding direction, from the pivot center of the pair of side stopper plates.