Sheet handling device and image forming apparatus having sheet-aligning rotary member
First Claim
Patent Images
1. A sheet handling device, comprising:
- sheet stacking means for stacking sheets;
ejection means for ejecting sheets to said sheet stacking means;
a sheet end stopper for holding ends of the sheets stacked in said sheet stacking means; and
at least one rotary member for aligning the sheets stacked in said sheet stacking means with said sheet end stopper, said at least one rotary member having an arc-shaped member formed by a portion of a circumference of a circle.
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Abstract
A sheet handling device has a sheet-aligning rotary member with an ejection device for ejecting sheets into a sheet stacking device, a sheet end stopper for holding the end of the sheet stacked in the sheet stacking device; and at least one rotary member for aligning the sheets ejected in the sheet stacking device with the sheet end stopper. The rotary member has an arc-shape outer peripheral surface around a portion of a circumference of said at least one rotary member.
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Citations
29 Claims
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1. A sheet handling device, comprising:
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sheet stacking means for stacking sheets;
ejection means for ejecting sheets to said sheet stacking means;
a sheet end stopper for holding ends of the sheets stacked in said sheet stacking means; and
at least one rotary member for aligning the sheets stacked in said sheet stacking means with said sheet end stopper, said at least one rotary member having an arc-shaped member formed by a portion of a circumference of a circle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An image forming apparatus comprising forming means for forming an image on a sheet and a sheet handling device, wherein said sheet handling device comprises:
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sheet stacking means for stacking sheets;
ejection means for ejecting sheets to said sheet stacking means;
a sheet end stopper for holding ends of the sheets stacked in said sheet stacking means; and
at least one rotary member for aligning the sheets stacked in said sheet stacking means with said sheet end stopper, said at least one rotary member having an arc-shaped member formed by a portion of a circumference of a circle. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A sheet handling device, comprising:
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sheet stacking means for stacking sheets;
ejection means for ejecting sheets with an image formed thereon to said sheet stacking means;
at least one rotary member placed above said sheet stacking means and having an arc-shaped member around a portion of a circumference of said at least one rotary member; and
a sheet end stopper for holding ends of the sheets stacked in said sheet stacking means, wherein said at least one rotary member is movable in a direction substantially perpendicular to a sheet stacking surface of said sheet stacking means, wherein said sheet sacking means is inclined so that the downstream side thereof in the sheet ejecting direction is above an upstream side, and wherein, when a circumferential length of said arc-shaped member of said at least one rotary member is l1, a length from a contact point between said sheet stacking surface of said sheet stacking means and said arc-shaped member of said at least one rotary member to said sheet end stopper is l2, and a length from an intersection of a line perpendicularly extending from the arc-shaped member of said ejection means on a downstream side and said sheet stacking surface of said sheet stacking means to said sheet end stopper is l3, the formula l1≧
l2 and l2≧
l3, is satisfied.
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Specification