Abstract: A sheet aligning mechanism that aligns sheets of paper includes, in a shift tray, a pair of main joggers and a pair of sub joggers, which are arranged downstream of the main joggers in a sheet discharge direction, for use in width-direction alignment of the sheets. One of the sub joggers is configured to move from a position where the sub jogger is not upwardly receded to an upwardly-receded position so that the thus-opened up space, of which height corresponds to a height difference between the two positions, can be utilized for sheet removal.

Abstract: A sheet aligning mechanism that aligns sheets of paper includes, in a shift tray, a pair of main joggers and a pair of sub joggers, which are arranged downstream of the main joggers in a sheet discharge direction, for use in width-direction alignment of the sheets. One of the sub joggers is configured to move from a position where the sub jogger is not upwardly receded to an upwardly-receded position so that the thus-opened up space, of which height corresponds to a height difference between the two positions, can be utilized for sheet removal.

Abstract: A paper feed device is mounted to a shredder. The intermittent activation time of paper feeding is adjusted, taking into consideration of the distance from the paper feed start position to the paper shredding position of a cutter of the shredder, thereby decreasing the speed of travel from the time the paper sensor detects the leading edge of the paper to the time the paper reaches the paper shredding position, so that operation is switched from intermittent to continuous activation preferably immediately before the leading edge of the paper reaches the cutter. Thus paper feed troubles associated with conventional devices are prevented, due to paper jamming, etc., caused by bending of the paper, etc.

Abstract: A paper feed device is mounted to a shredder. The intermittent activation time of paper feeding is adjusted, taking into consideration of the distance from the paper feed start position to the paper shredding position of a cutter of the shredder, thereby decreasing the speed of travel from the time the paper sensor detects the leading edge of the paper to the time the paper reaches the paper shredding position, so that operation is switched from intermittent to continuous activation preferably immediately before the leading edge of the paper reaches the cutter. Thus paper feed troubles associated with conventional devices are prevented, due to paper jamming, etc., caused by bending of the paper, etc.