| 摘要 |
A sheet stacking apparatus includes an intermediate process tray stacked with sheets, a trailing end lever movable upward from a pressing position in which to press the sheets on the intermediate process tray, a lever stopper regulating the upward movement of the trailing end lever, and an adjusting mechanism changing the regulating position of the trailing end lever by the lever stopper in accordance with a sheet stacking height of the sheets stacked on the intermediate process tray, wherein the adjusting mechanism keeps substantially constant a distance to the regulating position from the pressing position of the trailing end lever irrespective of the sheet stacking height of the sheets stacked on the intermediate process tray.
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