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US 11,718,496 B2Granted
Sheet processing apparatus and image forming system
AssigneeCanon Kabushiki Kaisha
InventorYasuhiro Nakahara
Life of this patent
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Abstract
A sheet processing apparatus includes a conveyance portion, a punching portion, a moving portion, a first detecting portion, and a control unit configured to control the conveyance portion, the punching portion and the moving portion, wherein the control unit is configured, for a target position of each of a plurality of holes to be formed to a single sheet, to cause the first detecting portion to execute a detection process, and to execute a moving process of moving the moving portion based on the output value of the first detecting portion corresponding to the target position and a punching process of performing punching to the target position of the sheet by the punching portion after the moving process has been completed.
Claims11
A sheet processing apparatus comprising:
- a conveyance portion configured to convey a sheet in a sheet conveyance direction;
- a punching portion configured to perform punching to the sheet conveyed by the conveyance portion, the punching portion comprising a punch that rotates around an axis extending in an intersecting direction intersecting the sheet conveyance direction;
- a moving portion configured to move the punching portion toward the intersecting direction;
- a first detecting portion arranged upstream of the punching portion in the sheet conveyance direction and configured to perform a detection process of outputting an output value based on a position of an edge portion in the intersecting direction of the sheet being conveyed, the first detecting portion being disposed in a position corresponding to the edge portion of the sheet;
- and
- a control unit configured to control the conveyance portion, the punching portion and the moving portion,
- wherein during punching performed to a first target position and a second target position of a single sheet, the control unit is configured to execute a first moving process of moving the punching portion in the intersecting direction by the moving portion while the sheet is being conveyed by the conveyance portion in the sheet conveyance direction based on a first output value of the first detecting portion, a first punching process of performing punching to the first target position of the sheet, being conveyed by the conveyance portion, by the punching portion which has moved in the first moving process, a second moving process of moving the punching portion in the intersecting direction by the moving portion while the sheet is being conveyed by the conveyance portion in the sheet conveyance direction based on a second output value of the first detecting portion after the first moving process, and a second punching process of performing punching to the second target position of the sheet, being conveyed by the conveyance portion, by the punching portion which has moved in the second moving process.
4 more elements
An image forming system comprising:
- an image forming unit configured to form an image on a sheet;
- a conveyance portion configured to convey the sheet on which the image has been formed by the image forming unit in a sheet conveyance direction;
- a punching portion configured to perform punching to the sheet conveyed by the conveyance portion, the punching portion comprising a punch that rotates around an axis extending in an intersecting direction intersecting the sheet conveyance direction;
- a moving portion configured to move the punching portion toward the intersecting direction;
- a first detecting portion arranged upstream of the punching portion in the sheet conveyance direction and configured to perform a detection process of outputting an output value based on a position of an edge portion in the intersecting direction of the sheet being conveyed, the first detecting portion being disposed in a position corresponding to the edge portion of the sheet;
- and
- a control unit configured to control the conveyance portion, the punching portion and the moving portion,
- wherein during punching performed to a first target position and a second target position of a single sheet, the control unit is configured to execute a first moving process of moving the punching portion in the intersecting direction by the moving portion while the sheet is being conveyed by the conveyance portion in the sheet conveyance direction based on a first output value of the first detecting portion, a first punching process of performing punching to the first target position of the sheet, being conveyed by the conveyance portion, by the punching portion which has moved in the first moving process, a second moving process of moving the punching portion in the intersecting direction by the moving portion while the sheet is being conveyed by the conveyance portion in the sheet conveyance direction based on a second output value of the first detecting portion after the first moving process, and a second punching process of performing punching to the second target position of the sheet, being conveyed by the conveyance portion, by the punching portion which has moved in the second moving process.
5 more elements
Dependencies are inferred from the claim text.