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.

According to one embodiment, there is provided an image processing apparatus including a sheet storage unit, a pickup roller, a paper feed roller, a separation roller, a roller drive unit, a roller pressing unit, and a drive control unit. The pickup roller picks up a sheet from the sheet storage unit. The paper feed roller conveys the sheet picked up by the pickup roller. The separation roller is disposed to face the paper feed roller. The roller drive unit drives the separation roller. The roller pressing unit presses the separation roller against the paper feed roller. The drive control unit controls the roller drive unit so as to generate a conveying force for conveying the sheet and a returning force for pushing the sheet back in a direction opposite to a conveyance direction.

Disclosed is a film feeding apparatus including a turntable including a driving member and a rotation bar having a central part shaft-coupled to a rotating shaft of the driving member to be driven to rotate around the rotating shaft and driven to rotate to repeatedly perform an operation in which the rotation bar rotates by a predetermined reference angle through the driving member and is then stopped for a predetermined reference time, a film tray that is installed in a predetermined first operation region to position one of opposite ends of the rotation bar on the film tray in a state in which the rotation bar is stopped for the reference time and on which a plurality of films are located in multiple layers, gripping units coupled to the opposite ends of the rotation bar, respectively, to transfer the films along a predetermined circular trajectory around the rotating shaft by the rotation bar and provided to grip the films, and a film ejection unit that is installed in a predetermined second operation region to position a remaining end opposite to the one end of the opposite ends of the rotation bar in the film ejection unit in the state in which the rotation bar is stopped for the reference time and provided to eject the films to an outside, wherein, in the state in which the rotation bar is stopped for the reference time, a griping unit positioned in the first operation region among the gripping units grips a film from the film tray, and a gripping unit positioned in the second operation region among the gripping units releases a film that is pre-gripped from the film tray and transfers the film to the film ejection unit.

A sheet feeder apparatus includes a width detector for a sheet placed on a sheet placement portion, a conveyor for conveying sheets while separating the sheets one by one, a first detector for detecting a sheet having a first width at a plurality of first positions, a second detector for detecting a sheet having a second width that is not detected by the first sheet detector at a plurality of second positions, and a controller for determining skewing of a sheet based on a result of the detection of the sheet performed by the first detector if the width of the sheet is the first width, and determining skewing of a sheet based on a result of the detection performed by the second detector if the width of the sheet is the second width.

A sheet feeding device includes a sheet loading portion which is capable of an elevating operations, and on which a sheet is loaded, a feeding member for feeding the sheet loaded on the sheet loading portion, the feeding member being capable of elevating movement between a contacting position in contact with the sheet, and a distanced position distanced upward from the sheet, and a control portion that controls the elevating operation of the sheet loading portion and the elevating movement of the feeding member. When the feeding member at the contacting position moves to the distanced position, the feeding member is distanced upward from the sheet loaded on the sheet loading portion after the sheet loading portion starts a descending operation.

A document feeding device includes a feeding unit feeding documents from a batch of documents on a placing tray, a separation member in pressure contact with the feeding unit and separating documents one by one, a separation swinging member supporting the separation member and displaceable in a thickness direction of the batch of documents, and a movable member supported as to be displaceable with respect to the separation swing member in the thickness direction of the batch of documents, and entering a space formed between the separation member and a document.

A sheet conveying device includes a pair of rollers including a first roller and a second roller to hold a sheet conveyed between the first and second rollers; a biasing member to bias the first roller toward the second roller; a biasing force changer to change a biasing force of the biasing member; control circuitry to, when a predetermined changing condition is met, cause the changer to change the biasing force and cause the rollers to convey the sheet; an operation detector to detect a changing operation of the changer; and a notification device to notify an abnormality of the changing operation when the operation detector detects the abnormality. When the operation detector detects the abnormality, the control circuitry performs sheet conveyance control to cause the rollers to convey the sheet without causing the changer to change the biasing force, regardless of whether the predetermined changing condition is met.

A sheet conveying device includes a sheet pickup body, a first sheet conveyor, and a second sheet conveyor, which are disposed in this order along a sheet conveyance direction, and circuitry. The first sheet conveyor includes a first sheet feed roller, a second sheet feed roller, and a first motor. The second sheet conveyor includes a conveyance roller and a second motor. The circuitry is configured to determine a sheet conveyance state of a sheet based on at least one of torque of the first motor of the first sheet conveyor and torque of the second motor of the second sheet conveyor. The first sheet conveyor is configured to interpose the sheet between the first sheet feed roller and the second sheet feed roller and convey the sheet to the second sheet conveyor as the first sheet feed roller rotates.

A flexural document pick-up device includes: a feeding path comprised of a upper wall and a lower wall; a input tray arranged upstream to the feeding path; a paper feeding unit arranged partially in the feeding path; a separation roller disposed on the opposite side of the paper feeding unit; a blocking arm disposed upstream to the paper feeding unit; a securing groove arranged on the upper wall; and a guiding unit with the following portions disposed sequentially from downstream to upstream of the feeding direction: a securing section which is secured to the securing groove, a flexure section which is extended from the securing section to the feeding path, a guiding section which is connected to the flexure section and essentially parallel to the feeding path, a lifting section which is connected to the guiding section and a vertex which is arranged on the end of the lifting section.

A media feeding apparatus includes a media mounting section, a first feed roller, a media pressing section for pressing media sheets against the first feed roller, and a pressing force adjuster for adjusting the pressing force of the media pressing section. The controller sets the pressing force of the media pressing section to first pressing force and drives the first feed roller and the second feed roller in a forward rotation direction, and in a case in which the first detector detects a passage of a leading edge of the media sheet and the second detector detects no passage of the leading edge of the media sheet after predetermined first set time has passed, the controller continues the rotation of the first feed roller and the second feed roller with second pressing force of the media pressing section greater than or equal to the first pressing force.