| 摘要 |
PURPOSE: A printed paper stacking device for a printer is provided to stack outputs without being wrinkled or dispersed by avoiding caught in the outputs which are already stacked by adjusting height of the paper loading tray according to the height of the stacked outputs. CONSTITUTION: A printed paper stacking device for a printer comprises: a frame(10) wherein a discharging roller discharges a printed paper; a paper stacking tray(40) which is installed in order to stack the printed paper and to descend on the frame; an up-down driving unit(50) which is installed on the frame and descends the paper stacking tray; a intermittent driving unit(60) which intermittently descends the elevated paper stacking tray by the up-down driving unit; a paper detecting sensor(70) which detects the stacking heights of the printed paper on the paper stacking tray; and a controller(80) which controls the intermittent driving unit according to the stacking height which is detected by the paper detecting sensor.
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