A sheet conveyer to shift a sheet at one side of the sheet conveyer in a widthwise direction is provided. The sheet conveyer includes a pair of rollers, a regulative guide arranged at a position closer to the one side than the pair of rollers in the widthwise direction, a first guide arranged at a position upstream from the pair of rollers with regard to a conveying direction to contact a first area on a first face of the sheet at a position closer to the one side in the widthwise direction than a widthwise center of the sheet, and a second guide arranged at a position upstream from the pair of rollers with regard to the conveying direction to contact a second area on a second face of the sheet. The second guide partly overlaps the first guide in a direction of height.

A medium stacking device includes side guides that are respectively disposed in a width direction parallel to a sheet face of the medium and orthogonal to a direction of progress at positions on both sides of a portion of a stage on which a medium is stacked, and that respectively guide the medium discharged from a discharge section in the width direction using a stacking guide face. Each side guide includes a discharge guide face that guides toward a central side in the width direction on progression from the discharge section along the direction of progress, a support guide face that supports the medium from a side of the stage, and a guiding valley portion that is an adjoining portion between the discharge guide face and the support guide face, that causes a vertex or edge of the medium to slide with progression of the medium, and that causes a leading edge portion of the medium in the direction of progress to pass further to a stacking direction side than the stage arm.

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 sheet feeding apparatus includes a conveyance guide member provided in an apparatus body and having a reference plane against which a sheet widthwise side edge orthogonal to a sheet feeding direction abuts. The reference plane is provided upstream in the feed direction of a downstream end in the feed direction of the sheet stacked on the stacking member in a state in which the sheet feed cassette is attached to the attachment position of the apparatus body and is provided under, in terms of a vertical direction, an uppermost sheet stacked on the stacking member in the state in which the sheet feed cassette is attached to the attachment position of the apparatus body.

A paper feeding tray includes a base body, two through holes, two paper guiding elements pivotally disposed in the two through holes, and two elastic elements. The two through holes penetrate through the base body along an up-down direction. An inner portion of a shaft hole of a front inner wall of each through hole extends inward and then expands transversely to form an eccentric hole. Two sides of an inner portion of a shaft which is protruded from a front surface of each paper guiding element transversely extend oppositely to form an eccentric element. The two eccentric elements of the two paper guiding elements are rotatably accommodated in the two eccentric holes of the two through holes. The two elastic elements abut against the two eccentric elements.

A traverse device and a traverse method for winding wire materials are provided. A guide roller is placed near the outer circumference of a reel body and inclined, around the rotation center (center of curvature of an R guide) located near the outer edge of the guide roller on the side near the reel body as the fulcrum, in a direction in which the roller outer edge recedes from one of reel flanges ahead in the traverse direction on the side apart from the reel body. The inclining direction is switched at the midpoint position between the reel flanges, and with the guide roller being inclined at all times, a reel is rotated while being moved in the axis direction to wind a wire material on the reel.

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 sheet conveyance apparatus includes a stacking tray, a conveyance roller, a first sensor configured to detect the sheet, a second sensor configured to detect the sheet, the second sensor and the first sensor being located side by side in a width direction, a controller configured to execute stopping processing to stop conveyance of the sheet based on the first sensor and the second sensor, and a display portion configured to display a predetermined screen configured to set a different-width mixed stacking mode in a case where the stopping processing is executed based on the first sensor and the second sensor.

A sheet feeding device includes a first feeding roller pair, a reference member, an obliquely feeding roller, a second feeding roller pair, a detecting portion, and a controller. Before a sheet is obliquely fed by the obliquely feeding roller, the controller causes the first feeding roller to move the sheet to a predetermined position in a widthwise direction of the sheet on the basis of a detection result of the detecting means.

Various embodiments of the present disclosure provide a rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight. The launch and retrieval system includes a modular multicopter, a storage and launch system, an anchor system, a flexible capture member, and an aircraft-landing structure. The multicopter is attachable to the fixed-wing aircraft to facilitate launching the fixed-wing aircraft into free, wing-borne flight. The storage and launch system is usable to store the multicopter (when disassembled) and to act as a launch mount for the fixed-wing aircraft by retaining the fixed-wing aircraft in a desired launch orientation. The anchor system is usable with the multicopter, the flexible capture member, and the aircraft-landing structure to retrieve the fixed-wing aircraft from free, wing-borne flight.