The sheet feeding apparatus includes an encoder configured to output a signal according to the rotation state of a retard roller, a feed motor configured to drive a pick-up roller, and a control unit configured to control the feed motor, make the pick-up roller feed a first sheet, and change the timing at which the pick-up roller is made to feed a second sheet following the first sheet, based on a signal output from the encoder after the trailing edge of the first sheet passes a separation nip portion.

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 sheet feeding device includes a sheet feeder, a sheet separator, a guide portion, and an adjuster. The sheet feeder is configured to feed a sheet loaded on a sheet loader. The sheet separator is configured to contact the sheet feeder to separate the sheet fed by the sheet feeder. The guide portion is configured to guide the sheet to a contact portion between the sheet feeder and the sheet separator. The adjuster is configured to adjust a position of a downstream end of the guide portion in a sheet conveyance direction.

An escrow unit has an escrow wheel and a movable-continuous belt. The escrow wheel rotates about an axis. The movable-continuous belt is wrapped partially around the escrow wheel forming an open gap between the belt and escrow wheel. The open gap allows the belt to transport a document through the open gap and to store the document by holding the document between the belt and the escrow wheel.

A medium feeding apparatus includes a pickup roller that feeds a medium from a medium mount section. A support member supports a pickup roller and swings around a swing axis to switch between a feeding position and a non-feeding position. A separation roller separates the medium from other media. A feed roller feeds the medium toward the downstream end. The separation and feed rollers are disposed downstream of the pickup roller. A control section controls a position of the support member. After the pickup roller and the feed roller start rotating, when the control section determines that the separation roller stops rotating or returns the medium by rotating in a reverse direction, based on a detection signal from a rotation sensing section configured to detect rotation of the separation roller, the control section causes the support member to switch from the feeding position to the non-feeding position.

A sheet feeding apparatus is provided with a disengaging mechanism configured to disengage a conveyance member and a separating member to be apart from each other. Either one of the conveyance member and the separating member is provided in a unit, which is attached to an apparatus body and is configured to be detached from the apparatus body toward a downstream side in the sheet conveyance direction, while the other provided in the apparatus body. A restriction portion is configured to restrict the unit from being attached to and detached from the apparatus body in a state where the conveyance member and the separating member are in contact with each other and to permit the unit to be attached to and detached from the apparatus body in a state where the conveyance member and the separating member are disengaged by the disengaging mechanism.

An embodiment includes an apparatus in an ATM to transport a document. The apparatus includes a feed wheel, a stripping tire, a clutch outer-hub and a clutch inner-hub. The feed wheel may be rotated by a first-rotational driver to move the document in a forward direction while the stripping tire is rotated by movable contact with the feed wheel. The clutch inner-hub prevents the stripping tire from rotating in a direction to cause the document to move in a reverse direction when the first-rotational driver rotates the feed wheel. Alternatively, the stripping tire is rotated by a second-rotational driver to move the document in the reverse direction when the feed wheel is not rotated by a first-rotational driver while the clutch outer-hub prevents the stripping tire from rotating in a direction to cause the document to move in the forward direction.

A used paper supply device includes a first paper feed unit and a second paper feed unit for feeding used paper and cleaning unit for cleaning a surface of a roller of the paper feed units, in which when the used paper is fed from the first paper feed unit, the surface of the roller of the second paper feed unit is cleaned.

A medium feeding device includes a medium feeding mechanism switching between a first state in which the medium is fed from the feeding tray and a second state in which the medium is not fed from the feeding tray, a feeding roller rotationally driven in a forward rotation direction, and a separation roller that is rotationally driven in the reverse rotation direction when the feeding roller is rotationally driven in the forward rotation direction, wherein when the separation roller is rotationally driven in the forward rotation direction, the feeding roller is configured to be passively rotatable with respect to the separation roller, and wherein a rotation direction of the first motor when the cam member switches the medium feeding mechanism from the first state to the second state is the same as a rotation direction of the first motor when the separation roller rotates in the forward rotation direction.

Examples disclosed herein relate to a device including a separator. Examples include a first separator having a surface to contact a medium and is coupled to a first spring. In examples, the first separator has a first centerline in a direction perpendicular to a medium travel direction. Examples include a second separator having a surface to contact a medium and is coupled to a second spring. In examples, the second separator has a second centerline disposed substantially parallel to the first centerline. Examples include a roller to contact the medium to move the medium along the medium travel direction. In examples, the first spring and second spring bias the first separator and second separator towards the roller, respectively. In examples, a force applied by the first separator to the medium is independent of a force applied to the medium by the second separator.