A medium transport device includes a positional corrector configured to transport a medium and correct a position of the medium in a width direction of the medium by moving the medium in the width direction, a first inclination corrector disposed on a transport path of the medium and configured to correct an inclination of the medium relative to a transport direction of the medium, and a second inclination corrector configured to correct the inclination of the medium on an upstream side of the first inclination corrector in the transport direction.

A transport device includes a skew correction unit configured to correct skew of a medium by colliding with the medium and a buffer unit provided with a contact portion configured to come into contact with the medium between a first transport unit transporting the medium to the skew correction unit and the skew correction unit in a transport direction. The buffer unit is configured such that a second transport velocity is lower than a first transport velocity, the first transport velocity being a transport velocity of the medium upstream of the buffer unit in the transport direction, the second transport velocity being a transport velocity of the medium when the medium collides with the skew correction unit after coming into contact with the contact portion. The buffer unit is configured such that the contact portion does not collide with the medium strongly enough to correct the skew of the medium.

A sheet conveyance apparatus includes a conveyance rotating member pair to convey a sheet in a sheet conveyance direction, and a skew correction portion including a first abutment surface having a first root portion and a second abutment surface having a second root portion. A guide portion includes a guide surface disposed between the first abutment surface and the second abutment surface. The first root portion is positioned within a first recess portion disposed upstream of the first abutment surface such that a leading edge of the sheet enters the first recess portion upon abutting against both the first abutment surface and the second abutment surface, and the second root portion is positioned within a second recess portion such that the leading edge of the sheet enters the second recess portion upon abutting against both the first abutment surface and the second abutment surface.

A transport unit transports a transport medium after the transport medium is newly placed as an uppermost medium in a state in which one or a plurality of placed media are already placed in a processing tray. At this state, at least one of the placed media placed on the processing tray is pressed by a pressing unit at a pressing position. After the transport unit is separated away from the transport medium, the pressing unit can move from the pressing position to a retraction position.

A sheet conveying apparatus that has a first conveying roller pair, and a second conveying roller pair, and corrects skew feeding of a sheet by a tip of the sheet abutting against a nip portion of the first conveying roller pair, including: a conveying unit that can shift and has a third conveying roller provided between the first conveying roller pair and the second conveying roller pair, wherein when a first sheet is conveyed, a tip of the first sheet is guided with the third conveying roller located in an abutting position where the third conveying roller abuts on a counter roller, and wherein when a second sheet with a basis weight greater than that of the first sheet, a tip of the second sheet is guided with the third conveying roller located in the separating position where the third conveying roller is separated from the counter roller.

A sheet conveyance apparatus includes a conveyance rotating member pair to convey a sheet in a sheet conveyance direction, and a skew correction portion including a first abutment surface having a first root portion and a second abutment surface having a second root portion. A guide portion includes a guide surface disposed between the first abutment surface and the second abutment surface. The first root portion is positioned within a first recess portion disposed upstream of the first abutment surface such that a leading edge of the sheet enters the first recess portion upon abutting against both the first abutment surface and the second abutment surface, and the second root portion is positioned within a second recess portion such that the leading edge of the sheet enters the second recess portion upon abutting against both the first abutment surface and the second abutment

Disclosed is a drawing apparatus including: a base member; and a drawing member that is attached so as to be capable of being drawn and pressed in a reciprocating direction with respect to the base member, wherein the base member has a couple application mechanism that applies a couple for correcting skewing of the drawing member with respect to the reciprocating direction to the drawing member as a reaction of a force by which the drawing member is pressed, and wherein the couple application mechanism is configured so that a distance between action lines of two forces generating the couple becomes large as a pressing amount of the drawing member with respect to the base member increases.