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US 12,729,088 B2Granted
Image forming system for controlling discharge of sheet on which image has been inspected
AssigneeCanon Kabushiki Kaisha
InventorKeisuke Kitajima
Life of this patent
Estimating the term…
Abstract
A length, in a lengthwise direction, of a sheet to be inspected by an inspection unit may be longer than a length of a conveyance path between a branch position corresponding to an initial branch path in a plurality of branch paths and a reading position of a reading apparatus. The sheet inspected by the inspection unit is not discharged to a stacking unit corresponding to the initial branch path, and is discharged to a stacking unit corresponding to a branch path branching from a main path at a branch position located further downstream than a branch position corresponding to the initial branch path.
Claims28
An image forming system comprising:
- an image forming apparatus that forms an image on a sheet;
- a reading apparatus that reads the image on the sheet conveyed from the image forming apparatus;
- an inspection unit that inspects the image on the sheet based on a result of the reading apparatus reading the image on the sheet;
- a conveyance path including a main path that guides the sheet read by the reading apparatus and a plurality of branch paths that branch from the main path and guide the sheet;
- and
- a plurality of stacking units on which discharged sheets are stacked,
- wherein each of the plurality of branch paths branches from the main path at a branch position corresponding to the branch path;
- each of the plurality of stacking units corresponds to a different branch path among the plurality of branch paths,
- each of the plurality of branch paths guides the sheet toward a stacking unit corresponding to the branch path,
- when a length, in a lengthwise direction, of the sheet to be inspected by the inspection unit is longer than a length of a conveyance path between a branch position corresponding to an initial branch path in the plurality of branch paths and a reading position of the reading apparatus, the sheet inspected by the inspection unit is not discharged to a stacking unit corresponding to the initial branch path, and is discharged to a stacking unit corresponding to a branch path branching from the main path at a branch position located further downstream than the branch position corresponding to the initial branch path, and
- the branch position corresponding to the initial branch path is a branch position, among the branch positions corresponding respectively to the plurality of branch paths, for which a length of a conveyance path from the reading position is shortest.
8 more elements
An image forming system comprising:
- an image forming apparatus that forms an image on a sheet;
- a reading apparatus that reads the image on the sheet at a reading position, the sheet being conveyed from the image forming apparatus;
- an inspection unit that inspects the image on the sheet based on a result of the reading apparatus reading the image on the sheet;
- a conveyance path including a main path that guides the sheet read by the reading apparatus and a plurality of branch paths that branch from the main path and guide the sheet;
- a plurality of stacking units on which discharged sheets are stacked;
- and
- a controller configured to obtain information related to a length of the sheet in a lengthwise direction of the sheet,
- wherein each of the plurality of branch paths branches from the main path at a branch position corresponding to the branch path,
- each of the plurality of stacking units corresponds to a different branch path among the plurality of branch paths,
- each of the plurality of branch paths guides the sheet toward a stacking unit corresponding to the branch path,
- the controller is further configured to, in a case where a total value of a value representing the obtained length of the sheet in the lengthwise direction and a value representing a distance the sheet is conveyed during inspection by the inspection unit is greater than a value representing a length of a conveyance path between a first branch position corresponding to a first branch path included in the plurality of branch paths and the reading position, control the inspected sheet not to be discharged to a stacking unit corresponding to the first branch path, and control the inspected sheet to be discharged to a stacking unit corresponding to a branch path that branches from the main path at a branch position located further downstream than the first branch position, and
- the first branch position is a branch position, among the branch positions corresponding respectively to the plurality of branch paths, for which a length of a conveyance path from the reading position is shortest.
9 more elements
An image forming system comprising:
- an image forming apparatus that forms an image on a sheet;
- a reading apparatus that reads the image on the sheet at a reading position, the sheet being conveyed from the image forming apparatus;
- an inspection unit that inspects the image on the sheet based on a result of the reading apparatus reading the image on the sheet;
- a conveyance path including a main path that guides the sheet read by the reading apparatus and a plurality of branch paths that branch from the main path and guide the sheet;
- and
- a plurality of stacking units on which discharged sheets are stacked,
- wherein each of the plurality of branch paths branches from the main path at a branch position corresponding to the branch path,
- each of the plurality of stacking units corresponds to a different branch path among the plurality of branch paths,
- each of the plurality of branch paths guides the sheet toward a stacking unit corresponding to the branch path, and
- the image forming system further comprises a display unit that displays a stacking unit to which a long sheet inspected by the inspection unit can be discharged, and a stacking unit to which the long sheet inspected by the inspection unit cannot be discharged, the long sheet being a sheet that is at least 1000 mm in a lengthwise direction of the sheet.
7 more elements
An image forming system comprising:
- an image forming apparatus that forms an image on a sheet;
- a reading apparatus that reads the image on the sheet at a reading position, the sheet being conveyed from the image forming apparatus;
- an inspection unit that inspects the image on the sheet based on a result of the reading apparatus reading the image on the sheet;
- a conveyance path including a main path that guides the sheet read by the reading apparatus and a plurality of branch paths that branch from the main path and guide the sheet;
- and
- a plurality of stacking units on which discharged sheets are stacked,
- wherein each of the plurality of branch paths branches from the main path at a branch position corresponding to the branch path,
- each of the plurality of stacking units corresponds to a specific different branch path among the plurality of branch paths,
- each of the plurality of branch paths guides the sheet toward a stacking unit corresponding to the branch path, and
- the image forming system includes a controller, in a case where an image on a long sheet having a length of at least 1000 mm in the lengthwise direction of the sheet is inspected, not permit the long sheet to be discharged to a stacking unit corresponding to a branch path that corresponds to a branch position, among branch positions corresponding to respective ones of the plurality of branch paths, for which a length of a conveyance path from the reading position is shortest.
7 more elements
Dependencies are inferred from the claim text.