There is provide a conveying apparatus conveying a sheet including: a main body formed with a conveyance path; a first feed tray installable in the main body at a first position; a discharge tray; and a first regulating section performing regulation for regulating movement of the first tray, in a state of being located at a second position, toward the other side in a first direction. The first regulating section is configured to release the regulation, in a case that the first feed tray, at the second position, is moved upwardly by a first predetermined moving amount. A spacing distance in the up/down direction between the first feed tray and the discharge tray is shorter than the first predetermined moving amount. The discharge tray is configured to be move upwardly by being contacted with the first feed tray in a case that the first feed tray is moved upwardly.

A medium placement device includes a placement unit configured to have cut single paper thereon, a cover member configured to have single paper supplied to or discharged from an opening portion thereon, and a movement unit configured to move the cover member between a first position and a second position that is lower than the first position.

A conveying apparatus, including: a conveyor mechanism; a housing; a first tray configured to receive a medium conveyed by the conveyor mechanism; an image reader disposed above the first tray, wherein a first discharge opening for discharging the medium outside the housing is formed in an upper surface of the housing so as not to overlap the image reader when viewed from above, and wherein the conveying apparatus further includes: a switcher for switching a destination of the medium selectively between the first tray and the first discharge opening; and a tray unit removably mountable on the upper surface of the housing and including a first introduction opening opposed to the first discharge opening, a second conveyance path for conveying the medium passed the first discharge opening and the first introduction opening, and at least one second tray for receiving the medium conveyed through the second conveyance path.

A transport apparatus includes a feed unit as an example of a supply unit which supplies a medium in a transport direction, and a transport unit which transports the medium supplied from the feed unit. The transport unit includes a transport roller (a driving roller) which sends the medium, and a driven roller which nips the medium between the transport roller and the driven roller. The driven roller is movable in the transport direction relative to the transport roller.

A sheet feeding device and a printing apparatus capable of estimating a number of remaining sheets without error include a loading member on which sheets are loaded, a lift unit that moves the loading member up and down, a position detection unit that detects a lift-up position to which the loading member moves up, a sheet detection unit that detects that a sheet at an uppermost position of the sheets loaded on the loading member has moved up to a feeding position by an upward movement of the loading member, a feeding roller that feeds a sheet at the feeding position, and an estimation unit that estimates the number of remaining sheets loaded on the loading member based on a combination of detection results of the sheet detection unit and the position detection unit.

Provided is an image forming system capable of reliably preventing others from removing and taking printed matter even though printing is executed beforehand. The confidential notation reading unit reads a confidential notation. The user storage tray has a structure from which outputted printed matter cannot be removed unless the opening/closing door is opened. The locking mechanism locks the opening/closing door. The sorting mechanism sorts the printed matter outputted from the image forming apparatus and outputs the printed matter to either the open tray or the user storage tray. The sorting control unit outputs printed matter to which a confidential notation is not added to the open tray, and outputs a printed matter to which a confidential notation is added to the user storage tray, respectively.

A sheet feeding apparatus includes a sheet supporting portion including a supporting surface, an abutment portion against which a leading edge of the sheet abuts, a feeding rotator configured to feed the sheet, and a first friction member provided on the supporting surface so as to face the feeding rotator. The first friction member includes a first friction surface having a static friction coefficient greater than that of the supporting surface, a trailing end supporting portion configured to support a trailing end portion of the sheet curved upward, and a second friction member disposed upstream of the first friction member in the sheet feeding direction on the supporting surface. The second friction member includes a second friction surface which has a static friction coefficient greater than that of the supporting surface and is configured to be in contact with the sheet supported by the supporting surface.

A paper sheet stacking apparatus, includes: a first tray that stacks a paper sheet; a sheet discharger that discharges a paper sheet supplied from the outside of the apparatus to the first tray; a second tray that receives the paper sheet stacked on the first tray and discharges the received paper sheet to the outside of the apparatus; and a hardware processor that controls operation states of the first tray and the second tray, wherein the first tray and the second tray have: a first operation state in which the first tray is positioned at a paper sheet stacking position; a second operation state in which the paper sheet stacked on the first tray is deliverable to the second tray; and a third operation state in which the first tray that has delivered the paper sheet to the second tray is returned to the paper sheet stacking position.

A feeding device includes a first feeding unit, a second feeding unit, and a fixing structure. The first feeding unit feeds a first recording medium. The second feeding unit is located below the first feeding unit and feeds a second recording medium. The fixing structure takes a first posture or a second posture differing from the first posture. The fixing structure fixes the second feeding unit to the first feeding unit when the fixing structure is in the first posture. The fixing structure fixes the second feeding unit to the first feeding unit by fixing a third frame member of the second feeding unit to a second frame member of the first feeding unit. When the fixing structure is in the second posture, the fixing structure releases linkage between the second feeding unit and the first feeding unit.

There is provided an image forming apparatus including a casing, a feeder unit, an image recording unit, a conveyance mechanism, an installation/removal sensor, and a controller. The controller carries out the process of: interrupting an image recording of the image recording unit if there is no recording medium supported by trays, restarting the image recording of the image recording unit by feeding the medium from a second tray after a first predetermined time has elapsed since such a time when the second tray is detected as the earliest one being removed and reinstalled, and restarting the image recording of the image recording unit by feeding the medium from a first tray if the first tray is detected as the earliest one but the second tray is not detected as being removed within a second predetermined time being longer than the first predetermined time.