A sheet feeding adapter includes a base plate which is placed on an upper surface of a sheet bundle set in a sheet feeding cassette and having a predetermined size and movable in a sheet feeding direction through guidance of a pair of first regulating plates, a sheet bundle having a small width size being set on an upper surface of the base plate, and a pair of second regulating plates that are upright from the upper surface of the base plate and regulate a position in a width direction of a sheet bundle set on the upper surface of the base plate and having a small width size, wherein the base plate is movable between a sheet feeding position, at which the sheet bundle having the small width size can be fed, and a withdrawing position positioned at a rear side from the sheet feeding position.

A module, the module including: a first side, a second side, a top, and a bottom; an output port on the first side to feed medium to a side port of an imaging device; a communication port to communicate with the imaging device; and an intake port on the bottom of the module to receive medium from a first medium storage tray.

A sheet feed device comprises a first conveyance path and a second conveyance path which are different sheet conveyance paths, and a conveyance path merging section for merging the first conveyance path and the second conveyance path together. At least one of the first conveyance path and the second conveyance path includes an upstream side roller that feeds sheet to downstream side in a conveyance direction. The conveyance path merging section comprises a conveyance roller pair that conveys the sheet fed from the first conveyance path and the second conveyance path through a nip; a variable mechanism that makes an arrangement angle of one roller of the conveyance roller pair to the other roller thereof variable; and a transmission mechanism that transmits a driving force from the upstream side roller provided in one of the first conveyance path and the second conveyance path to the variable mechanism.

A sheet feeding device includes a detachable separation unit, a conveyance unit, a guide member, an urging member, and an opening and closing member. The feeding unit feeds a stored sheet. The separation unit separates sheets fed by the feeding unit one by one. The conveyance unit conveys the sheet. Urged by the urging member, the guide member guides the sheet toward the conveyance unit and rotates about a first rotating shaft. The opening and closing member opens and closes. In a state in which the opening and closing member is closed, the guide member is positioned in a first position in which the guide member forms a conveyance path. In a process in which the opening and closing member is opened, a free end of the guide member moves upwardly about the first rotating shaft, by using an urging force, from the first to a second position.

A recording apparatus includes: a recording section that performs a recording operation on a medium; a housing that contains the recording section; a storage section that stores the medium; and a reading unit disposed in an upper portion of the housing. The reading unit includes: a reading section that reads an original sheet; a guide member that guides the original sheet; and an aperture through which the original sheet that has been read by the reading section passes. By being rotated relative to the housing, the guide member is switched between a first position in which the aperture is exposed and the original sheet is to be guided and a second position in which the aperture is covered.

Provided is a paper sheet replenishing box (paper feed device) for replenishing reserve fund in each circulation-type paper sheet storage unit, wherein paper sheets of each denomination can be replenished from one paper sheet replenishing box in which paper sheets of different denominations having different sizes are accommodated together to a circulation unit of the respective circulation-type paper sheet storage units. The paper sheet replenishing box includes a first tray piece 201 in which a plurality of pieces of first paper sheets P1 are placed in a stacked state, a second tray piece 211 arranged immediately below the first tray piece, on which a plurality of pieces of second paper sheets P2 having a different longitudinal dimension from that of the first paper sheet are placed in a stacked state, and rear-end regulating members 204 and 214 that align front end positions in a transport direction of respective paper sheet bundles to predetermined positions. After all the first paper sheets in a bundle on the first tray piece have been fed by a feed unit 160, an uppermost surface of the second paper sheets in a bundle on the second tray piece becomes a state capable of coming in contact with the feed unit.

A sheet stacking apparatus includes: a sheet stacker capable of stacking a sheet; a sheet conveyer that conveys the sheet to the sheet stacker; an openable member that can be opened/closed at time of taking out the sheet stacked on the sheet stacker; and a hardware processor that controls the sheet conveyer so as to convey the sheet to the sheet stacker in a case where an opened/closed state of the openable member is an intermediate state between a fully-opened state and a fully-closed state.

A sheet processing apparatus includes a processing tray, a pushing member, and a movable guide. One or more sheets to be processed are placeable on the processing tray for sheet processing. The pushing member is configured to push an edge of the one or more sheets on the processing tray on an upstream side in a sheet conveying direction, by moving along a surface of the processing tray in the sheet conveying direction. The movable guide is movable to a sheet pressing position at which a distance between the surface of the processing tray and the movable guide is equal to or less than a height of the pushing member above the surface of the processing tray. The movable guide is at the sheet processing position when the pushing member moves along the surface of the processing tray in the sheet conveying direction.

A sheet processing apparatus includes first and second sheet processing modules, a connecting module, and a storage module. In each of the first and second sheet processing modules, a sheet received from an entrance port is identified by an identifying unit, and if the sheet is qualified, the sheet is transported to a first communication port through a first transport path. In the connecting module, a first diverter mechanism is configured to permit sheet transport between a second communication port and a selected one of the first and second sheet processing modules. The storage module is disposed for receiving and storing the sheet from the connecting module.

A sheet stacking device includes a housing, a discharge tray, a lifting mechanism, a first upper surface detection part, a second upper surface detection part and a control part. The housing has a discharge port. On the discharge tray, the sheet discharged from the discharge port in a predetermined discharge direction is stacked. The lifting mechanism supports the discharge tray. The first upper surface detection part detects a first detected surface of the sheet on the discharge tray. The second upper surface detection part detects a second detected surface of the sheet on the discharge tray on a downstream side of the first detected surface in the sheet discharge direction. The control part controls the lifting mechanism based on a detection result of the first upper surface detection part and a detection result of the second upper surface detection part, and adjusts the discharge tray at a predetermined height.