An elastic roll includes: a roll core; an inner-layer laminate covering an outer-peripheral surface of the roll core parallel to a roll longitudinal direction; a surface-layer elastomer including a tubular portion covering an outer-peripheral surface of the inner-layer laminate, and edge portions connected to the tubular portion, covering both end surfaces of the inner-layer laminate orthogonal to the roll longitudinal direction, and arranged in a manner being in contact with the roll core; and end-portion sealing structural bodies configured to press the edge portions of the surface-layer elastomer against the roll core.

A liftable transport pinch is provided with a simplified construction to enhance lifetime and productivity. This transport device includes at least one roller mounted on an arm, and an actuator connected to a frame for moving the roller between a first and second position. The arm is mounted onto the frame by means of an elastic hinge element. The elastic hinge element provides a simple, cheap, wear-resistant, and easy-to-assembly alternative to prior art solutions.

A liftable transport pinch is provided with a simplified construction to enhance lifetime and productivity. This transport device includes at least one roller mounted on an arm, and an actuator connected to a frame for moving the roller between a first and second position. The arm is mounted onto the frame by means of an elastic hinge element. The elastic hinge element provides a simple, cheap, wear-resistant, and easy-to-assembly alternative to prior art solutions.

An elastic roll includes: a roll core; an inner-layer laminate covering an outer-peripheral surface of the roll core parallel to a roll longitudinal direction; a surface-layer elastomer including a tubular portion covering an outer-peripheral surface of the inner-layer laminate, and edge portions connected to the tubular portion, covering both end surfaces of the inner-layer laminate orthogonal to the roll longitudinal direction, and arranged in a manner being in contact with the roll core; and end-portion sealing structural bodies configured to press the edge portions of the surface-layer elastomer against the roll core.

A square back processing unit performs a square back process on the sheet bundle and includes a pair of clamp portions. The sheet bundle subjected to the square back process by the square back processing unit is discharged to a sheet bundle discharge unit. A cover unit is provided downstream of the square back processing unit in the conveyance direction such that a child access probe according to a safety standard IEC 62368-1 does not reach the pair of clamp portions in a case where the child access probe is inserted from an outside of the sheet processing apparatus.