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US 12,162,713 B2Granted
Sheet reversing apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorHiroshi Kokubo
Life of this patent
Estimating the term…
Abstract
A reversing roller pair is controlled such that, when an abnormality occurs during the conveying of a sheet, the sheet is conveyed in a forward direction by the reversing roller pair, and is controlled to continue conveying until a state where the final sheet among the sheets conveyed in the forward direction is detected by a first detection portion, and subsequently to stop in a state where the final sheet is nipped by the reversing roller pair.
Claims10
A sheet reversing apparatus comprising:
- a reversing roller pair configured to convey, after conveying a sheet in a forward direction while the sheet is in a nipped state, the sheet in reverse by conveying the sheet in an opposite direction opposite to the forward direction;
- a support portion configured to support the sheet conveyed in the forward direction by the reversing roller pair, in order to convey the sheet in the opposite direction;
- a first detection portion configured to detect the sheet that is conveyed by the reversing roller pair;
- and
- a control portion configured to control conveying of the sheet by the reversing roller pair based on a detection result from the first detection portion,
- wherein, in a state where a sheet jam of a jammed sheet occurs during the conveying of the sheet, the control portion is configured to:
- control the reversing roller pair to discharge a plurality of sheets, except a final sheet among the plurality of sheets, that remain further downstream in the conveyance direction than the jammed sheet, to the support portion;
- and then
- stop the reversing roller pair in a state where the final sheet is nipped by the reversing roller pair and detected by the first detection portion.
6 more elements
An image forming apparatus comprising:
- an image forming portion configured to form an image on a sheet;
- and
- a sheet reversing apparatus configured to convey in reverse the sheet on which the image has been formed by the image forming portion, and comprising:
- a reversing roller pair configured to convey, after conveying the sheet in a forward direction while the sheet is in a nipped state, the sheet in reverse by conveying the sheet in an opposite direction opposite to the forward direction;
- a support portion configured to support the sheet conveyed in the forward direction by the reversing roller pair, in order to convey the sheet in the opposite direction;
- a first detection portion configured to detect the sheet that is conveyed by the reversing roller pair;
- and
- a control portion configured to control conveying of the sheet by the reversing roller pair based on a detection result from the first detection portion,
- wherein, in a state where a sheet jam of a jammed sheet occurs during the conveying of the sheet, the control portion is configured to:
- control the reversing roller pair to discharge a plurality of sheets, except a final sheet among the plurality of sheets, that remain further downstream in the conveyance direction than the jammed sheet, to the support portion;
- and then
- stop the reversing roller pair in a state where the final sheet is nipped by the reversing roller pair and detected by the first detection portion.
9 more elements
Dependencies are inferred from the claim text.