A printer includes a medium supply unit, a printing unit, a feed unit, which feeds a print medium along a feed direction that is any one of a first direction toward the printing unit from the medium supply unit or a second direction toward the medium supply unit from the printing unit on a reference surface, a depressed portion, which is disposed using the reference surface as a reference, and a movement restricting portion, which includes a guide piece and restricts a movement of the print medium to a direction perpendicular to the feed direction of the print medium by housing at least a part of the guide piece in the depressed portion and abutting a side edge of the print medium on the guide piece, and a side edge on a side of the printing unit of the guide piece is disposed at a position close to an inner wall surface on the printing unit side of the depressed portion with respect to an inner wall surface on a side of the medium supply unit of the depressed portion.

A feed mechanism includes: a feed tray accommodating a roll body, a first sheet-shaped medium being rolled in a roll shape as the roll body, the feed tray including: a first accommodation portion accommodating the roll body; a pair of side walls respectively provided on both sides of the first accommodation portion in an axial direction of the roll body that is accommodated in the first accommodation portion; and a side guide disposed inside the pair of side walls.

Web guides including a roller, a control surface assembly, and a fin actuator. The roller is configured to mount to a drive shaft. The roller includes a tube wall. The tube wall defines an interior space, an exterior surface, and slots. The slots are circumferentially spaced around the tube wall. The slots pass through the tube wall from the interior space to the exterior surface. The control surface assembly is disposed within the interior space. The control surface assembly includes fins. The fins are aligned with the slots and adapted to selectively move between a retracted position contained within the roller and an extended position protruding beyond the exterior surface of the roller. The fin actuator is configured to selectively move the fins between the retracted position and the extended position.

A feed mechanism includes: a feed tray accommodating a roll body, a first sheet-shaped medium being rolled in a roll shape as the roll body, the feed tray including: a first accommodation portion accommodating the roll body; a pair of side walls respectively provided on both sides of the first accommodation portion in an axial direction of the roll body that is accommodated in the first accommodation portion; and a side guide disposed inside the pair of side walls.

A device for laterally guiding (1) a metal strip (2) running over a metal strip conveyor device. The device has at least one main part module (3) with a guiding plane (4) and at least one grinding body with a grinding surface (5a, 5b, 5c) for contacting the metal strip (2) to be guided for guiding purposes. The grinding body (6) is attached to a support element (7), or the grinding body (6) includes the support element (7). The support element (7) is mounted in the main part module (3) in a movable manner in the direction of the rotational axis (10) and in a rotatable manner. The position of the grinding body in relation to the guiding plane (4) is modified by moving the support element (7) prior to or while laterally guiding metal strips running over a metal strip conveyor device, prior to contacting a first metal strip for guiding purposes, and/or while contacting a first metal strip for guiding purposes.

A conveying apparatus includes: a conveying unit configured to convey a sheet in a conveyance direction along a conveyance path; a sheet holder arranged upstream in the conveyance direction from the conveying unit to rotate around an axis, the axis extending in a first direction intersecting with the conveyance direction; a tensioner arranged between the sheet holder and the conveying unit in the conveyance path and configured to apply tension to the sheet with the sheet being curved; and a first side guide attached to the tensioner and having a first guide surface, the first guide surface spreading along the conveyance direction and a second direction intersecting with the first direction. The tensioner includes an oblique roller configured to guide the sheet to the first guide surface.

Web guides including a roller, a control surface assembly, and a fin actuator. The roller is configured to mount to a drive shaft. The roller includes a tube wall. The tube wall defines an interior space, an exterior surface, and slots. The slots are circumferentially spaced around the tube wall. The slots pass through the tube wall from the interior space to the exterior surface. The control surface assembly is disposed within the interior space. The control surface assembly includes fins. The fins are aligned with the slots and adapted to selectively move between a retracted position contained within the roller and an extended position protruding beyond the exterior surface of the roller. The fin actuator is configured to selectively move the fins between the retracted position and the extended position.