A sheet feeding device includes a sheet feeding body, a sheet separating body, a loading body, a support, and a pressing body. The sheet feeding body is configured to feed a recording sheet. The sheet separating body is configured to separate the recording medium and convey the recording medium together with the sheet feeding body. The loading body is configured to load the recording medium to be fed by the sheet feeding body. The support is disposed above the sheet separating body. The pressing body is made of metal and rotatably supported by the support between the loading body and the sheet separating body. The pressing body includes a part-shaped face to contact or face the recording medium. A surface of the part is covered with a metal plating.

A paper separation structure includes: an actuating unit being selectable to generate a forward and reverse actuating torque (T); a one-way actuator connected to said actuating unit and being able to break the connection of said actuating unit while said actuating unit generates a reverse actuating torque (T); a breaking unit having a threshold of breaking torque (TL1), and said braking torque (TL1) set lower than said actuating torque (T); and a separating roller connected to said one-way actuator and said braking unit to receive said actuating torque (T) and said braking torque (TL1). With the combination of components mentioned above, the paper separation structure of the present invention has a plurality of torque thresholds for paper separation and can switch between active and passive separation modes according to requirements.

A medium conveyance device includes a first separator that separates a first medium from a plurality of mediums, a processor that processes the first medium and sends the processed first medium as a second medium, a second separator that when a non-separation mode is set, conveys the second medium to a next processor, and when a separation mode is set, conveys a third medium, which is separated from the second medium, to the next processor, and a controller that switches between the non-separation mode and the separation mode based on information obtained as a result of processing the first medium.

A separation roller for a sheet feeding apparatus includes an outer circumferential portion formed from an elastic material, a core portion to which the outer circumferential portion is attached; and a flange portion including a plurality of projecting portions each projecting to an outside in a radial direction with respect to the core portion. At least one of the plurality of projecting portions includes a first surface provided on a side portion thereof on an upstream side in a first direction in which the separation roller rotates in such a manner as to follow the rotary feeding member rotating to feed the sheet. The first surface extends more upstream in the first direction at a position further on an outside in a radial direction with respect to a rotation axis of the separation roller as viewed in the axial direction.

A paper pickup mechanism includes a mechanical frame, a pickup roller module, a feeding roller module, a driving device, a separation roller module and an energy storage element. The mechanical frame has a platform. The pickup roller module is pivoted to and connected to the mechanical frame. The feeding roller module is pivoted to and connected to the mechanical frame. The driving device is mounted to the mechanical frame. The separation roller module is pivoted to and connected to the mechanical frame. The energy storage element is mounted between the mechanical frame and the separation roller module. When the separation roller module rotates together with the feeding roller module in a forward direction, the energy storage element accumulates energies. When more than one piece of paper is fed into the paper pickup mechanism, the energy storage element releases the energies.

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.

In one example in accordance with the present disclosure, a sheet transport device is described. The sheet transport device includes a pickup roller to insert a sheet into a sheet path. A pair of separation rollers of the sheet transportation device form a nip that advances the sheet along the sheet path. A first separation shaft on which a first separation roller is disposed rotates in a first direction as the sheet is advanced and a second separation shaft on which a second separation roller is disposed also rotates in the first direction as the sheet is advanced. The second separation roller is driven in a second direction via a torque limiter. A motor rotates the shafts. A one-way clutch is disposed on the second separation shaft to disengage the second separation shaft from the motor when the motor is operating in a reverse mode.

A sheet conveyance apparatus is configured to interlock a first transmission mechanism and a second transmission mechanism such that the second transmission mechanism switches a rotational driving direction of a reverse rotary member between a normal rotation direction and a reverse rotation direction with a delay with respect to the first transmission mechanism starting transmission of a rotational driving force such that a guide member pivots between a first pivot position and a second pivot position.

A document conveyance device includes a feed roller, a separation roller, a first motor for generating a first drive force for driving the separation roller, a planet gear, a drive gear, a second motor for generating a second drive force, and a position switching mechanism for switching a position of the planet gear from a first position in which the planet gear is separated from the drive gear and does not transmit the first drive force to the separation roller to a second position in which the planet gear engages with the drive gear and transmits the first drive force to the separation roller, based on the second drive force. The position switching mechanism includes a support member for supporting the planet gear, and a transfer mechanism for moving the support member so that the planet gear engages with the drive gear, based on the second drive force. The further movement of the planet gear is prevented after the planet gear engaged with the drive gear.

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.