A sheet feeder includes a manual feeding tray to stack a sheet, the tray being openable and closable to a main body by rotation about a rotation axis in a direction perpendicular to a sheet feeding direction; a sheet width regulating member provided in the manual feeding tray to regulate a side edge of the sheet in a sheet width direction and to have a variable regulating width; an auxiliary tray that does not move with an opening/closing operation of the manual feeding tray and stacks the sheet with the manual feeding tray; a sheet width regulating member provided in the auxiliary tray to regulate the side edge of the sheet and to have a variable regulating width; a link member interlocking the regulating members; and a feeding roller provided in the main body to individually feed the sheet stacked over the manual feeding tray and the auxiliary tray.

A medium transport apparatus includes a body portion, an inversion unit, and an extension unit. The body portion has a second manual feed path for a sheet material. The inversion unit is configured to be mounted on and separated from the body portion, covers the second manual feed path when the attachment/detachment portion is mounted the body portion, and exposes a portion of the second manual feed path when the attachment/detachment portion is separated from the body portion. The extension unit is configured to be attached to and detached from the attachment/detachment portion. The extension unit extends, in a state in which the inversion unit is separated, the second manual feed path in a transport direction of the sheet material by being detached from the inversion unit and attached to the body portion.

A stretch film dispenser includes a frame. The frame has a top seat and a bottom seat. The top seat and the bottom seat are jointly equipped with a film mounting unit and a film dispensing unit. The film dispensing unit includes a first roller and a second roller. The first roller and the second roller have a strip hole. The strip hole is located between the first roller and the second roller. Through the strip hole of the first roller and the second roller, the front end of a film can pass through the strip hole between the first roller and the second roller easily and quickly, and the film is pulled out along the direction of the first roller, thereby achieving the effect of easy and convenient installation of the film.

Disclosed is a sheet feeding apparatus including: a tray unit provided rotatably with respect to an apparatus main body; a sheet stacking member which can be moved to a stand-by position for waiting for sheet feeding and a feeding position at which a sheet can be fed; a moving portion which abuts against the sheet stacking member from below and to move the sheet stacking member to the feeding position and the stand-by position, the moving portion being movable to a first position at which the moving portion locates the sheet stacking member at the stand-by position and to a second position at which the moving portion locates the sheet stacking member at the feeding position; and a restricting portion which restricts movement of the sheet stacking member by interfering with the moving portion located at the first position when the sheet stacking member moves.

A sheet feeding apparatus includes an apparatus body, an opening/closing member openable/closable with respect to the apparatus body and including a support portion supporting a sheet in a condition in which the opening/closing member is opened. The sheet supported by the support portion is fed by a feed portion. The opening/closing member is provided with a detection portion configured to detect the sheet on the support portion. The detection portion is disposed at a position where the detection wave emitted from the detection portion is not detected in a condition in which the opening/closing member is closed.

A sheet tray provided with first and second trays respectively having first and second supporting surfaces. The second tray slidably assembled, in a first direction, to the first tray. The first and second supporting surfaces are configured to support sheets thereon. The first tray and the second tray have a first guide portion and a second guide portion which are formed at central parts, in a second direction perpendicular to the first direction, respectively. The second guide portion is configured to slidably contact the first guide portion to guide the slide movement of the second tray. A first separation regulating part formed on the first guide portion, and a second separation regulating part formed on the second guide portion are configured to engage with each other in the vertical direction to prevent separation of the first and second trays in the vertical direction, exceeding a particular dimension.

According to one embodiment, the sheet conveying device includes a tray, an elevating mechanism, a conveyance roller, and a resistance member. The tray stacks a plurality of sheets. The elevating mechanism lifts and lowers the tray in the stacking direction of a plurality of sheets. The conveyance roller conveys the plurality of sheets in the conveyance direction from the upper side in the stacking direction. The resistance member comes into contact with the leading ends of the plurality of sheets in the conveyance direction. The resistance member imparts a sliding resistance larger than that of the sheet stacking surface of the tray to the leading ends of the plurality of sheets that are lifted and lowered by the elevating mechanism.

A conveying apparatus has first and second trays arranged on an upstream of a conveyor and configured to support the sheet in contact with the conveyor, a feeder configured to feed the sheet on the first tray toward the conveyor, a first sensor configured to output a first signal in response to the sheet being present on the first tray, a second sensor configured to output a second signal in response to the sheet being present between the first tray and the conveyor and configured to output the second signal in response to the sheet being present between the second tray and the conveyor, and a controller configured to execute a removal notifying process to output a notification indicating removal of the sheet on the first tray in response to output of the second signal before a time period since the first signal was output exceeds a threshold period.

A sheet feeding device includes a feeder, a contact member, a movement restricting member, a moving mechanism, and control circuitry. The feeder is configured to feed a sheet. A leading end of the sheet in a feeding direction is to contact the contact member. The movement restricting member is configured to lock the contact member to restrict movement of the contact member from a contact position where the contact member contacts the sheet. The moving mechanism is configured to move the movement restricting member between a locking position and a lock releasing position. The contact member is configured to take the contact position by gravity or a biasing force of a biasing part. The control circuitry is configured to control the moving mechanism to move the movement restricting member to the lock releasing position and then to the locking position when a feeding operation of the sheet is finished.

A manual sheet feeding device includes: a sheet feeding rotary body configured to separate and feed recording media placed on a manual sheet feeding unit one by one; a shielding unit configured to cover an outer side surface of the sheet feeding rotary body, the shielding unit having an aperture for exposing at least a part of the sheet feeding rotary body to an outside; and an opening and closing unit configured to open and close the aperture of the shielding unit.