Sheet processing apparatus above image forming means and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTakashi Kuwata, Yasuyoshi Hayakawa, Kaoru Sato
Life of this patent
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Abstract
A sheet processing apparatus, which is configured in a simple construction and at low cost, includes a first sheet stacking portion for temporarily stacking a sheet discharged thereon, an alignment member for aligning the sheet discharged on the first sheet stacking portion, a sheet processing member for performing a predetermined process on the sheet stacked on the first sheet stacking portion, and a second sheet stacking portion located substantially vertically below the first sheet stacking portion. The alignment member acts to cause the aligned sheet to drop to the second sheet stacking portion.
Claims16
A sheet processing apparatus, comprising:
- a first sheet stacking portion for temporarily stacking a sheet discharged thereon;
- alignment means for alignment of a sheet discharged on said first sheet stacking portion;
- sheet processing means for performing a predetermined process on the sheet stacked on said first sheet stacking portion;
- and
- a second sheet stacking portion located substantially vertically below said first sheet stacking portion,
- wherein said alignment means acts to cause the aligned sheet to drop to said second sheet stacking portion, said alignment means includes a guide member arranged to abut on a side surface of the sheet in a widthwise direction thereof, discharged on said first sheet stacking portion and to be movable in the widthwise direction of the sheet, and driving means for driving said alignment means, and
- said driving means includes a motor arranged to generate a driving force, a transmission gear provided on said first sheet stacking portion and arranged to be rotated by the driving force, and a rack member provided on said guide member and arranged to change rotation of said transmission gear to a moving force in the width direction of the sheet.
An image forming apparatus, comprising:
- image forming means for forming an image on a sheet;
- and
- a sheet processing apparatus provided above a frame body housing said image forming means including;
- a first sheet stacking portion for temporarily stacking the sheet discharged from said image forming means;
- alignment means for aligning the sheet discharged on said first sheet stacking portion;
- sheet processing means for performing a predetermined process on the sheet stacked on said first sheet stacking portion;
- a second sheet stacking portion located substantially vertically below said first sheet stacking portion;
- and
- control means for controlling said alignment means and said sheet processing means,
- wherein said control means performs control in such a way as to cause the sheet aligned by said alignment means to drop to said second sheet stacking portion.
An image forming apparatus, comprising:
- image forming means for forming an image on a sheet;
- and
- a sheet processing apparatus including:
- a first sheet stacking portion for temporarily stacking the sheet discharged from said image forming means;
- alignment means for aligning the sheet discharged on said first sheet stacking portion, and, after that, causing the aligned sheet to drop downward;
- and
- sheet processing means for performing a predetermined process on the sheet stacked on said first sheet stacking portion,
- wherein said sheet processing apparatus is provided above a frame body housing said image forming means, and a second sheet stacking portion for stacking the sheet caused to drop by said alignment means is provided on an upper surface of said frame body housing said image forming means.
Dependencies are inferred from the claim text.