A sheet conveying apparatus includes a bottom plate, a side restriction member extending in a sheet conveying direction, drive roller rotatable about a first axis substantially orthogonal to the sheet conveying direction, and a driven roller facing the drive roller and rotatable about a second axis inclined relative to the first axis. The driven shaft includes a shaft portion and an elastic portion. The shaft portion integrally includes a first extending portion, a second extending portion, and an intermediate portion located therebetween. The elastic portion is fitted over the intermediate portion. The first extending portion includes a first protruding portion. The second extending portion includes a second protruding portion. A first distance from the second axis to an outer peripheral surface of the first protruding portion is greater than a second distance from the second axis to an outer peripheral surface of the second protruding portion.

A feed detection unit which detects a document which is fed is provided at a position between a pinching position at which a feed roller and a frictional force application portion pinch the document and an intersecting position at which a tangential line of the feed roller which is closer to a downstream side in a transport direction than the pinching position is perpendicular to a transport path in the transport direction, which is a different position from the feed roller in a width direction which intersects the transport direction.

A sheet feeding apparatus includes a support portion, a guide portion, and a contact unit. The support portion rotatably supports a roll having a sheet wound to the roll. In loading the roll, the guide portion guides the roll in a guide direction from above the support portion to the support portion. The contact unit contacts an outer periphery of the roll supported by the support portion. The contact unit contacts the roll from upstream in the guide direction, and, in feeding the sheet, the sheet is fed from the roll supported by the support portion.

A sheet feeding apparatus includes a support portion, a guide portion, and a contact unit. The support portion rotatably supports a roll having a sheet wound to the roll. In loading the roll, the guide portion guides the roll in a guide direction from above the support portion to the support portion. The contact unit contacts an outer periphery of the roll supported by the support portion. The contact unit contacts the roll from upstream in the guide direction, and, in feeding the sheet, the sheet is fed from the roll supported by the support portion.

A sheet feeder includes a separator to separate an uppermost layer from a bundle of sheets stacked on a sheet stacker, a conveyor to convey a sheet of the uppermost layer one by one along a sheet conveyance path, and a first air blowing port and a second air blowing port disposed along the sheet conveyance path, to blow air upstream in a sheet conveyance direction. The second air blowing port is disposed downstream from the first air blowing port.

A sheet conveying device includes a sheet skew corrector to correct a skew of a leading end of a sheet inclining from a sheet conveyance direction and a pair of registration rollers disposed upstream of the sheet skew corrector in the sheet conveyance direction. The pair of registration rollers freely contacts and separates from each other. The pair of registration rollers conveys the sheet downstream of the sheet skew corrector in the sheet conveyance direction when driven at a prescribed time. A pair of conveyance rollers is placed upstream of the pair of registration rollers in the sheet conveyance direction. The pair of conveyance rollers continuously sandwiches the sheet from when the sheet with the skew corrected is sandwiched by the pair of registration rollers to when a trailing end of the sheet passes between the pair of conveyance rollers.

A sheet conveying apparatus includes a stacking unit, a feeding member, a conveyance guide, and a movement unit. The stacking unit is drawably mounted on an apparatus body and includes a stacking member on which a sheet is stacked. The feeding member feeds the sheet stacked on the stacking member. The conveyance guide is provided with an opening and disposed above the stacking unit. The conveyance guide configures a conveyance path through which the sheet is conveyed. The movement unit moves the feeding member between a first position on which the feeding member comes into contact with the sheet stacked on the stacking member and a second position disposed above the first position. The movement unit includes an entry portion configured to be located within the opening in a state where the feeding member is positioned at the second position.

A medium feeding device includes a storage unit that stores media in a form of a sheet, a delivery unit that is disposed downstream in a medium delivery direction relative to the media stored in the storage unit and that delivers the media individually, a transfer unit that is disposed above the storage unit and that sticks by suction to each of the media stored in the storage unit and transfers the media to the delivery unit individually, and a fluffing unit that is disposed beside the media stored in the storage unit in a direction intersecting the medium delivery direction. The fluffing unit fluffs an upper-side region of the media in a state of being separated by blowing air toward a side of the media. The medium feeding device further includes plural position detection units that are arranged in a region that is on the delivery unit side relative to a position of a downstream end portion, in the medium delivery direction, of each of the media stored in the storage unit and that does not reach a contact portion where the delivery unit comes into contact with the media. The position detection units are arranged at an interval in a width direction of the media intersecting the medium delivery direction. The position detection units detect a position of the downstream end portion, in the medium delivery direction, of each of the media.

A medium feeder includes a feed roller that feeds a medium loaded on a medium loading section; a transport roller disposed downstream relative to the feed roller; a first driving source that drives at least the feed roller; a second driving source that drives at least the transport roller; and a housing that houses the feed roller, the transport roller, the first driving source, and the second driving source, wherein the housing includes a lower unit that constitutes a lower part of the housing, and an upper unit openable relative to the lower unit, and the first driving source and the second driving source are disposed on both sides relative to a center part of the lower unit in a width direction perpendicular to a medium transportation direction.

An image forming apparatus includes: a sheet conveyance section configured to convey a long sheet along a sheet feeding path; and an image forming section configured to form an image on the long sheet conveyed by the sheet conveyance section, the sheet conveyance section including a conveyance unit that includes a first conveyance roller and a second conveyance roller for conveying the long sheet in a sandwiching manner, and is movable along a sheet conveyance direction in a state where the long sheet is conveyed through the sheet feeding path.