A sheet separation device includes a rotator, a nipping member to nip the two-ply sheet with the rotator, a first conveyor to convey the two-ply sheet in a first direction toward the rotator and a second direction reverse thereto, a winding member to wind the two-ply sheet around the rotator, a second conveyor to convey a sheet medium in the second direction, a separation claw to move in a width direction; a sheet guide to guide the separated two sheets to different passages; and control circuitry. The first conveyor conveys the two-ply sheet to the rotator with a bonded portion at an upstream end. The control circuitry inserts the separation claw into a space between the two sheets, adjusts a projection amount of the two-ply sheet from a nip of the first conveyor in the second direction, and inserts the sheet medium in two-ply sheet adjusted in the projection amount.

A sheet feeding device includes a sheet loader, a sheet feeder, and an end fence. The sheet loader is configured to load a sheet bundle including sheets. The sheet feeder is configured to feed an uppermost sheet of the sheet bundle loaded on the sheet loader. The end fence is disposed movable in a sheet feeding direction of the uppermost sheet and is configured to contact a trailing end of the sheet bundle in the sheet feeding direction to regulate a position of the trailing end of the sheet bundle. The end fence includes an elastic body configured to contact the trailing end of the sheet bundle at a portion other than at least an upper portion of the end fence.

According to an embodiment, a sheet supply device includes a stacking unit, a first roller, a second roller, and a stopper. The stacking unit has a stack surface on which sheets are stacked. The first roller conveys a sheet from the stacking unit in a conveying direction. The second roller conveys the sheet conveyed by the first roller. The stopper has an abutting surface. The stopper is rotatable around a rotation shaft along a width direction. The stopper rotates such that a posture of the stopper switches between a first and a second posture. The first posture has a first angle at which an angle between the abutting surface and the stack surface is an obtuse angle. The second posture has a second angle at which an angle between the abutting surface and the stack surface is an obtuse angle, the second angle being more than the first angle.

A document feeder includes a device body, and an opening and closing cover which is provided to be openable and closable with respect to the device body, and including a paper feed roller and a paper feed roller drive shaft on the device body. The document feeder includes a guide member, which is mounted rotatably to the paper feed roller drive shaft on an outer side of the paper feed roller in a roller axis direction thereof. The guide member guides a document being conveyed, in a state where the opening and closing cover is closed, by being opposed to the paper feed roller drive shaft in a predetermined orientation.

A document feeder includes a device body, and an opening and closing cover which is provided to be openable and closable with respect to the device body, and including a paper feed roller and a paper feed roller drive shaft on the device body. The document feeder includes a guide member, which is mounted rotatably to the paper feed roller drive shaft on an outer side of the paper feed roller in a roller axis direction thereof. The guide member guides a document being conveyed, in a state where the opening and closing cover is closed, by being opposed to the paper feed roller drive shaft in a predetermined orientation.

The disclosure relates to a feeding apparatus capable of feeding media sheet. The feeding apparatus includes first feeding assembly comprising first mount frame, first roller and stopper. The stopper is pivotally connected to the first mount frame and movable with the first roller, the stopper has a covering portion configured to stop the media sheet, the first roller is located in the first mount frame and is movable along a straight path; while the stopper is pressing against the first roller and the first roller is moving along the straight path, the stopper is moved with the first roller so that the covering portion of the stopper is moved close to or away from the straight path.

A pickup mechanism includes a paper feeding channel, a pickup roller assembly disposed in the paper feeding channel and projecting beyond a top of the paper feeding channel, a paper tray disposed to an upstream of the pickup roller assembly, and a guiding swing arm assembly. The guiding swing arm assembly includes two guiding swing arms mounted adjacent to and spaced from two opposite sides of the pickup roller assembly. Each guiding swing arm includes a pivoting shaft, a stopping block, and an extending arm connected between the pivoting shaft and the stopping block. The two stopping blocks of the two guiding swing arms are disposed between the pickup roller assembly and the paper tray for blocking paper. An axial direction of the pivoting shaft of each guiding swing arm is deviated from a center axis direction of the pickup roller assembly.

A medium conveying apparatus includes a medium tray, a feed roller, an upper guide, a movement sensor including an arm movably provided by the fed medium on the upper guide and on an upstream side of the feed roller, to generate a movement amount signal corresponding to a movement amount of the arm, a medium sensor to detect a presence of the medium at a predetermined position of the medium tray, a processor to determine whether a feeding abnormality of the medium has occurred based on the movement amount signal, detect a size of the medium placed on the medium tray based on a detection result by the medium sensor, and stop feeding of the medium by the feed roller when the processor determines that the feeding abnormality of the media has occurred and the detected size of the media is equal to or less than a predetermined size.

A sheet feeding apparatus includes a sheet supporting portion configured to support a first sheet and a second sheet that are superposed in a stacking direction, a rotary feeding member, a separation portion, a return portion configured to return the second sheet, separated by the separation portion from the first sheet, toward the sheet supporting portion, and a regulating portion comprising a regulating surface, the regulating portion being configured to move between a regulating position configured to regulate the position of leading edges of the first sheet and the second sheet by the regulating surface, and an allowing position being configured to allow feeding of the first sheet and the second sheet supported on the sheet supporting portion, the regulating surface being extended in the stacking direction in a state where the regulating portion is positioned at the regulating position.

A sheet conveying device includes a sheet container, an air blower, and a guide. The sheet container is configured to store a plurality of sheets. The air blower is configured to blow air to the plurality of sheets to separate a single sheet from subsequent sheets of the plurality of sheets. The guide is configured to contact a surface of the single sheet separated from the subsequent sheets of the plurality of sheets over a given region downstream from any position of an upstream region in a sheet conveyance direction to guide the single sheet. The upstream region is from an upstream end to a center of the single sheet in the sheet conveyance direction.