A stacker device in an items processing system is a last station of a mail line. The stacker device has a receiving plate to receive flat items, a longitudinal alignment wall, graduated in at least two steps, at a rear side of the stacker device, and a stop wall that is arranged at the downstream end of the receiving plate.

A door system for a processing machine, including a secondary frame having a stop, a door with a leaf and a shaft mounted movable in rotation about a tilting axis on the secondary frame between a closed position where the leaf extends vertically and an open position where the leaf extends horizontally and where, in the closed position, the shaft is in the lower portion of the leaf, and where the shaft has on its periphery, a protrusion, where in the closed position, the protrusion is not pressed against said stop and where, in the open position, the protrusion is pressed against said stop.

A sheet storage device includes a sheet storage unit to store sheets, a regulating unit in the sheet storage unit, and a lifting unit. The regulating unit regulates a position of a rear edge portion of the sheets in a sheet conveyance direction and includes a supporting portion, an urging member, and a pressing portion having a pressing surface in which a position to be in contact with lower sheets is a pressing surface lower portion, and a position to be in contact with upper sheets located higher than the lower sheets is a pressing surface upper portion. The pressing surface can be in a first state, where the pressing surface upper portion is located downstream from the pressing surface lower portion in a pressing direction, or in a second state, where the pressing surface lower portion is located downstream from the pressing surface upper portion in the pressing direction.

A sheet material feeding device includes: a housing; a cassette configured to accommodate a sheet material therein and capable of being pulled out of the housing; a pushing-up plate which is on the cassette and configured to fluctuate and a position thereof is changed to a feeding position or a retracted position; a rear-end regulating member for regulating a position of an upstream end of the sheet material; a rear-end displacement member which is supported by the rear-end regulating member and configured to fluctuate and a position thereof is changed to a feeding position or a retracted position; a pushing-up plate displacing device configured to change the position of the pushing-up plate to the feeding position; and a rear-end displacement member displacing device configured to complete a position change of the rear-end displacement member to the feeding position before a position change of the pushing-up plate to the feeding position.

A sheet feeding device for feeding a sheet includes a support unit, an open-close member rotatably supported between open and closed positions, a slide member supported in a slidably movable manner and including a rotation shaft portion, and a regulation member supported by the slide member. The open-close member supports the sheet in the open position with the support unit. The regulation member regulates a position of the sheet supported by the support unit or the sheet supported by the support unit and the open-close member. The support unit includes a guide portion that movably guides the rotation shaft portion. If the open-close member is rotated from the open position toward the closed position in a state in which the open-close member is in contact with the slide member, the slide member rotates by following movement of the open-close member with respect to the guide member.

A sheet stacking device including: a stacking unit; and a regulation member movably supported by the stacking unit and contacting a sheet edge to regulate a sheet position. The regulation member includes: a locking member movable between an engagement position and a disengagement position; a biasing member biasing the locking member toward the engagement position; a force receiver receiving a user operation; a releaser converting a first force in a first direction applied to the force receiver into a second force in a second direction opposing a biasing force from the biasing member, moving the locking member from the engagement position to the disengagement position; and a stopper that, after the locking member disengages from the engaging portion and a user operation is not applied to the force receiver, prevents a movement of the locking member back to the engagement position due to the biasing force from the biasing member.

A sheet discharge apparatus includes a main tray, a discharge unit, and an expansion tray. The main tray is pivotable between a closed position and open position relative to a sheet discharge apparatus main body. The discharge unit discharges the sheet onto the main tray in the closed position. The expansion tray expands a main tray stacking area and is movable between a storage position where the expansion tray is stored in the main tray and an expansion position where the expansion tray is slid from the storage position in a sheet discharge direction and expands the stacking area. At the expansion position, the expansion tray is pivotable independently of the main tray. A direction in which the expansion tray is pivoted upward is the same as a direction in which the main tray is pivoted from the closed to the opened position.

A medium discharging device includes a discharging unit which discharges a medium; and a medium receiving tray which receives the medium discharged by the discharging unit, and is switched between an extended state and an accommodated state, in which the medium receiving tray is provided with a base tray, a main extendeding unit that is accommodated or extended, and at least one sub-extendeding unit that is accommodated or extended, and in which the base tray forms an accommodating space for accommodating at least the one sub-extendeding unit, and is provided with a first protrusion portion protruding toward the accommodating space.

Examples include a vibratory device that includes a pivotably arranged pile bearing device that defines a bearing plane, and that separates an upper half-space from a lower half-space. The vibratory device includes a front stop that can limit a pile forming region, a lateral stop, and a pile aeration device that includes a gas discharge device that is arrangeable relative to the pile bearing device. The gas discharge device is arranged to be transferrable between a lowered position and an aeration position. In the aeration position, the gas discharge device is at least partly arranged in the upper half-space, and when in the lowered position, the gas discharge device is arranged completely in the lower half-space. The pile aeration device may serve as a rear blower device and, based on a first transport direction, the pile forming region is arranged between the gas discharge device and the front stop.

A cassette portion includes a side guide, an end guide, and a paper detection portion. The side guide is movable in X direction and controls a motion of a first end portion of paper. The end guide is provided to the side guide to be movable in Y direction, and restricts a motion of a second end portion of the paper. The paper detection portion detects the first restricting position in the X direction of the side guide and a second restricting position in the Y direction of the end guide in a restricted state of the paper. The end guide includes a detection target portion formed such that detection information to be detected by the paper detection portion varies in the Y direction. The paper detection portion detects the first restricting position and the second restricting position by obtaining detection information from the detection target portion.