Sheet stacking device and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorShunsuke Nishimura
Life of this patent
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Abstract
The present invention relates to a sheet stacking device which stacks sheets thereon, comprising: a buffer unit which allows a preceding sheet to temporarily stay so as to superimpose the preceding sheet and a following sheet one on another; a sheet discharging roller which discharges the sheets superimposed in the buffer unit; and a sheet stacker which stacks the sheets discharged from the buffer unit. The sheets to be discharged in superimposition by the sheet discharging roller is superimposed in a state in which a rear end of a lower sheet in a sheet conveying direction advances in the sheet conveying direction more than a rear end of an upper sheet, and the lower sheet is previously discharged to the sheet stacker.
Claims7
A sheet stacking device which stacks sheets thereon, comprising:
- a buffer unit which allows a preceding sheet to temporarily stay so as to superimpose the preceding sheet and a following sheet one on another;
- a sheet discharging roller which discharges the sheets superimposed in the buffer unit;
- and
- a sheet stacker which stacks the sheets discharged from the buffer unit;
- wherein the sheets to be discharged in superimposition by the sheet discharging roller are superimposed in a state in which a rear end of a lower sheet in a sheet conveying and a control that discharges the sheets to the sheet stacker one by one in order from the lower sheet.
Dependencies are inferred from the claim text.