A sheet feeding device includes a conveyance rotator, a separation rotator, a torque applier, a torque control circuit, and a torque transmission switcher. The conveyance rotator conveys a sheet in a sheet feeding direction. The separation rotator sandwiches the sheet together with the conveyance rotator. The torque applier applies a reverse torque to the separation rotator in a sheet reversing direction to reverse the sheet. The torque control circuit controls the reverse torque applied to the separation rotator to be equal to or less than a given value. The torque transmission switcher switches, between a transmission state and a non-transmission state, a state of a torque transmission path between the torque applier and the separation rotator. The transmission state is a state in which the reverse torque is transmitted. The non-transmission state is a state in which the reverse torque is not transmitted.

According to aspects of the present disclosures, there is provided a tray swinging mechanism including a document tray. A movable plate of the document tray is configured to be swingable about a tray shaft and extends leftward. A lifter is configured to be swingable about a lifter shaft extending in the front-rear direction at a position different from the tray shaft. On a lower surface of the movable plate, a cam surface configured to contact a tip of the lifter is formed. The cam surface includes a parallel part parallel to an upper surface of the movable plate and a curved part spaced from the upper surface farther toward a right side. According to a shape of the cam surface, each time the lifter is rotated by a particular angle, the tip of the movable plate moves by a particular amount.

There is provided a sheet feeding apparatus for feeding a sheet. The sheet feeding apparatus includes: a feeding roller that feeds a sheet; and a moving mechanism that moves the feeding roller to a feeding position where the feeding roller contacts the sheet, to a first retracting position where the feeding roller is separated from the sheet, and to a second retracting position lying between the feeding position and the first retracting position.

A sheet feeding apparatus includes: a storage part that stores a sheet, and a feeding part that has a feeding roller for feeding the sheet. The storage part and the feeding part are configured to be integrally inserted/withdrawn into/from an apparatus enclosure. The feeding roller is moved from a feeding position to a retracting position before the storage part and the feeding part are withdrawn from the enclosure.

A sheet conveyer, having a sheet tray, a tray-driving mechanism, a conveyance guide, a feed roller, a conveyer-driving mechanism, a first sensor, and a controller, is provided. The controller controls the tray-driving mechanism and the conveyer-driving mechanism, during a sequential conveying action, when the first sensor detects an upper-surface level being at a lower limit of a correct range, delay a lift-start timing, at which the tray-driving mechanism starts moving the sheet tray upward, to be later at least than a timing, at which the feed roller after feeding one of the sheets completely and pausing resumes rotating for feeding a next one of the sheets, and cause the sheet tray to complete moving to a higher position prior to completion of feeding of the next sheet.

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.

An image recording apparatus for recording an image on a sheet includes a recording section which records the image on the sheet in a transport passage for transporting the sheet in a transport direction and multiple plates which are spaced apart from each other in a widthwise direction. These multiple plates include a first type of plate and a second type of plate. Plates of a first type of plate are configured to overlap a sheet when viewed in a direction perpendicular to the transport direction and the widthwise direction, while plates of the second type of plate do not.

A sheet conveying apparatus includes: a casing provided with a first conveying path and a second conveying path; a first feeding tray provided in the casing and having a first supporting surface that supports a sheet; a supporting member that supports the first feeding tray from below in the casing; a first feeding section provided above the first supporting surface; a first guide member having a first guide surface to guide the sheet fed from the first feeding tray; a second feeding tray provided below the supporting member in the casing and having a second supporting surface that supports a different sheet; a second feeding section provided above the second supporting surface; a second guide member having a second guide surface to guide the different sheet fed from the second feeding tray; and a frame made of metal and being installed on a lower surface of the supporting member.

A sheet feeding apparatus is disclosed. This sheet feeding apparatus includes: a feeding roller configured to feed sheets; a conveying roller configured to convey the sheets fed by the feeding roller; a separation roller configured to form a nip portion by being pressed on the conveying roller, and to separate one by one the sheets at the nip portion, the sheets being conveyed by the conveying roller; a guide configured to guide the sheets fed by the feeding roller to the nip portion; and a holder configured to hold the separation roller and the guide, and to be detachably attachable to the sheet feeding apparatus. The guide adheres to the holder and the separation roller is replaceable on the holder that has been removed from the sheet feeding apparatus.

A sheet feeding apparatus includes an apparatus body, an opening/closing portion supported on the apparatus body, a sheet supporting portion supported on the opening/closing portion and configured to support a sheet, a rotary feeding member provided on the apparatus body and configured to feed the sheet supported on the sheet supporting portion in a feeding direction, a first engagement portion provided on the apparatus body, and a second engagement portion provided on a downstream end portion of the sheet supporting portion in the feeding direction, the second engagement portion being configured to engage with the first engagement portion in an intersecting direction that intersects an axial direction of the rotary feeding member in a state where the opening/closing portion is positioned at the open position.