A sheet conveying apparatus includes a first rotator pair, a second rotator pair provided downstream, in a sheet conveying direction, of the first rotator pair, and a moving member having an abutment portion. the first rotator pair, the second rotator pair and the moving member are configured such that a rear end of the sheet does not pass on a moving trajectory of the abutment portion when the moving member moves from a passage state in which the sheet is allowed to pass through the abutment portion as the abutment portion is pressed by the sheet conveyed by the first rotator pair to an abutment state in which the abutment portion protrudes into a sheet conveying path.

A sheet conveying apparatus includes a first rotator pair, a second rotator pair provided downstream, in a sheet conveying direction, of the first rotator pair, and a moving member having an abutment portion. the first rotator pair, the second rotator pair and the moving member are configured such that a rear end of the sheet does not pass on a moving trajectory of the abutment portion when the moving member moves from a passage state in which the sheet is allowed to pass through the abutment portion as the abutment portion is pressed by the sheet conveyed by the first rotator pair to an abutment state in which the abutment portion protrudes into a sheet conveying path.

The present disclosure provides a paper stop structure, a paper feed unit, and an image forming apparatus. The paper stop structure includes a movement stopper and a paper stopper both swingably configured in a paper feed path, and a separation structure to separate the movement stopper and the paper stopper. In paper stopping state, the paper stopper is pushed by an external force to swing until contacting the movement stopper, and blocks paper sheets from entering the paper feed path. In non-paper stopping state, the paper stopper is pushed by an external force to swing and separates from the movement stopper. Accordingly, various functions of paper feeding, paper stopping, and paper detecting may be achieved, and large capacity paper feeding can also be achieved to improve product operating efficiency and to effectively prevent paper mis-feed and paper jam during the image forming apparatus operation.

The present disclosure provides a paper stop structure, a paper feed unit, and an image forming apparatus. The paper stop structure includes a movement stopper and a paper stopper both swingably configured in a paper feed path, and a separation structure to separate the movement stopper and the paper stopper. In paper stopping state, the paper stopper is pushed by an external force to swing until contacting the movement stopper, and blocks paper sheets from entering the paper feed path. In non-paper stopping state, the paper stopper is pushed by an external force to swing and separates from the movement stopper. Accordingly, various functions of paper feeding, paper stopping, and paper detecting may be achieved, and large capacity paper feeding can also be achieved to improve product operating efficiency and to effectively prevent paper mis-feed and paper jam during the image forming apparatus operation.

A sheet conveying apparatus including: a locking member having an abutment surface abutting a sheet to correct skew feed of the sheet; a holding member configured to hold the locking member to rotate from a waiting position when the locking member is pushed by the sheet; a roller pair configured to nip the sheet abutting the abutment surface; a first urging portion configured to urge the holding member to the waiting position; a movable support portion configured to support the locking member in a manner that the locking member is located a retracted position where the locking member contacts a surface of the sheet and allows the sheet to pass; and a second urging portion configured to urge the locking member to a position where the abutment surface abuts a succeeding sheet.

A sheet conveying apparatus including: a locking member having an abutment surface abutting a sheet to correct skew feed of the sheet; a holding member configured to hold the locking member to rotate from a waiting position when the locking member is pushed by the sheet; a roller pair configured to nip the sheet abutting the abutment surface; a first urging portion configured to urge the holding member to the waiting position; a movable support portion configured to support the locking member in a manner that the locking member is located a retracted position where the locking member contacts a surface of the sheet and allows the sheet to pass; and a second urging portion configured to urge the locking member to a position where the abutment surface abuts a succeeding sheet.

A sheet feeding apparatus includes an upstream end regulation unit configured to move between a regulating position where the regulation unit is protruded from the sheet support surface and regulates a sheet supported on the sheet support surface from moving upstream in the sheet conveyance direction, and a retracted position where the regulation unit is pushed down into the sheet support surface from the regulating position. The upstream end regulation unit is positioned within an area where it is overlapped with a sheet placed on the reference position, and configured to move from the retracted position to the regulating position in a state where there are no sheets on the upstream end regulating unit.

A sheet feeding apparatus includes an upstream end regulation unit configured to move between a regulating position where the regulation unit is protruded from the sheet support surface and regulates a sheet supported on the sheet support surface from moving upstream in the sheet conveyance direction, and a retracted position where the regulation unit is pushed down into the sheet support surface from the regulating position. The upstream end regulation unit is positioned within an area where it is overlapped with a sheet placed on the reference position, and configured to move from the retracted position to the regulating position in a state where there are no sheets on the upstream end regulating unit.

A sheet conveying apparatus including: a locking member having an abutment surface abutting a sheet to correct skew feed of the sheet; a holding member configured to hold the locking member to rotate from a waiting position when the locking member is pushed by the sheet; a roller pair configured to nip the sheet abutting the abutment surface; a first urging portion configured to urge the holding member to the waiting position; a movable support portion configured to support the locking member in a manner that the locking member is located a retracted position where the locking member contacts a surface of the sheet and allows the sheet to pass; and a second urging portion configured to urge the locking member to a position where the abutment surface abuts a succeeding sheet.

A sheet conveying apparatus including: a locking member having an abutment surface abutting a sheet to correct skew feed of the sheet; a holding member configured to hold the locking member to rotate from a waiting position when the locking member is pushed by the sheet; a roller pair configured to nip the sheet abutting the abutment surface; a first urging portion configured to urge the holding member to the waiting position; a movable support portion configured to support the locking member in a manner that the locking member is located a retracted position where the locking member contacts a surface of the sheet and allows the sheet to pass; and a second urging portion configured to urge the locking member to a position where the abutment surface abuts a succeeding sheet.