Sheet stacking apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorYuki Akamatsu
Life of this patent
Estimating the term…
Abstract
A sheet stacking apparatus includes a stacking portion, a conveyance portion configured to convey the sheet toward the stacking portion, an abutting portion against which a leading edge of the sheet in the sheet conveyance direction is abutted, a first conveyance member, a second conveyance member movable to a contact position at which the second conveyance member contacts the sheet stacked on the stacking portion and to a retracted position to which the second conveyance member is retracted from the sheet stacked on the stacking portion, and a control portion configured to execute a first mode in which the second conveyance member is positioned at the contact position and a second mode in which the second conveyance member is positioned at the retracted position.
Claims16
A sheet stacking apparatus comprising:
- a stacking portion on which a sheet is stacked;
- a conveyance portion configured to convey the sheet toward the stacking portion in a sheet conveyance direction;
- an abutting portion against which a leading edge of the sheet in the sheet conveyance direction is abutted;
- a first conveyance member configured to contact the sheet stacked on the stacking portion and apply conveyance force to the sheet for moving the leading edge of the sheet toward the abutting portion;
- a second conveyance member configured to contact the sheet stacked on the stacking portion and apply conveyance force to the sheet for moving the leading edge of the sheet toward the abutting portion, the second conveyance member being movable to a contact position at which the second conveyance member contacts the sheet stacked on the stacking portion and to a retracted position to which the second conveyance member is retracted from the sheet stacked on the stacking portion;
- and
- a control portion configured to execute a first mode and a second mode, the first mode being a mode in which the second conveyance member is positioned at the contact position such that the sheet is conveyed by the first conveyance member and the second conveyance member, the second mode being a mode in which the second conveyance member is positioned at the retracted position such that the sheet is conveyed by the first conveyance member.
Dependencies are inferred from the claim text.