A sheet alignment device includes a driven roller, a drive roller, a displacement driving device, an information acquisition portion, and a displacement control portion. The drive roller is configured to rotate in a first rotation direction and in contact with an upper surface of each of sheets conveyed onto a tilt tray, to feed the sheets toward a base end portion of the tilt tray. The drive roller is configured to rotate in a second rotation direction and in contact with an uppermost surface of the sheets, to discharge the sheets from the tilt tray. The displacement control portion is configured to, when the drive roller rotates in the first rotation direction, control a holding position of the drive roller in accordance with the number of the sheets on the tilt tray and thickness information of each of the sheets acquired by the information acquisition portion.

A paper discharging apparatus comprises: a first conveying unit; a second conveying unit which includes a pinch roller and a feeding roller that are arranged closer to the downstream side; a movable mechanism which moves a surface part between a first position that the surface part is not contacted with the pinch roller and a second position that the surface part is contacted with the pinch roller through the paper so as to push the pinch roller; a control unit which moves the surface part to the second position, clamps the paper by the pinch roller and the surface part, and conveys the paper, thereby bending the paper, and which moves the surface part to the first position and clamps the paper by the pinch roller and the feeding roller, and rotates the feeding roller, thereby discharging the paper from the conveyance path.

A transport device includes a medium carrying unit on which a medium having a first surface and a second surface opposite the first surface is superposedly wound in a cylindrical shape so as to form a roll body, the second surface being oriented so as to form an inner circumferential surface in the roll body, a route defining portion fixed in a curved shape so as to guide the medium such that the second surface is oriented to the inner side of the curve, and a slave roller that nips the medium in collaboration with a transport roller so as to deform the medium such that the second surface becomes oriented to the outer side of the curve, the slave roller being located downstream of the route defining portion in the transport direction of the medium.

A sheet supporting apparatus includes an apparatus body, a supporting unit being capable of being drawn from and inserted to the apparatus body, and having a supporting member on which a sheet is supported, a conveyance guide disposed on the apparatus body and being capable of moving to a first position at which a sheet conveyance path is constituted, and a second position distant from the first position, and a regulation unit. The regulation unit regulates the conveyance guide positioned at the second position from moving in an upward direction, a downward direction, a drawing direction and an inserting direction of a supporting unit.

A sheet material feeding apparatus includes a first roll 106, and a second roll 108 arranged vertically below first roll 106, to feed a sheet material clamped between the first roll 106 and the second roll 108. The sheet material feeding apparatus further includes a first motor 102 provided with a rotatable first motor shaft 104 coupled to the first roll 106, and a second motor 103 provided with a rotatable second motor shaft 105 coupled to the second roll 108. The first motor shaft 104 and the second motor shaft 105 rotate at substantially the same rotation speed to allow the first roll 106 and the second roll 108 to rotate in synchronization with each other.

A sheet feeding apparatus, including: a pair of sheet feeding rollers; a pair of conveyance rollers; and a controller, wherein when a first condition regarding a sheet position is fulfilled in the sheet feeding, the controller makes one of the first conveyance roller and the second conveyance roller move in a direction opposite to the other conveyance roller and when a second condition regarding the sheet position is fulfilled in the sheet feeding, the controller makes the one conveyance roller move in a direction toward the other conveyance roller.

There is provided a post processing device including a mounting portion on which a medium is temporarily mounted, a post processing unit that performs post processing on the medium mounted on the mounting portion, a discharging tray on which the medium is stacked after being discharged, and a suppressing unit that suppresses deformation of the medium mounted on the mounting portion.

A moving-side roller reliably separates from a stationary-side roller so as to enable appropriate document transport. An image reading apparatus causes a roller support member supporting the moving-side roller to come into contact with the stationary-side roller. A contact state and a separation state can be switched. The image reading apparatus includes an external force providing portion to exert a third external force on the roller support member in a direction for restraining warping that is generated in the roller support member by a first external force that a cam exerts on the roller support member and by a second external force that an urging device exerts on the roller support member.

A sheet processing apparatus performs a binding discharge process and a sorting discharge process. In the sorting discharge process, a second operation is repeatedly performed to form an unbound first sheet bundle on the stacking portion, and a third operation is repeatedly performed to form an unbound second sheet bundle on the stacking portion. In the second operation, a sheet conveyed in a first conveyance direction is nipped by a pair of alignment plates without conveying the sheet in a second conveyance direction, and a shift operation of moving a position of the sheet in a shift direction is performed. Then the sheet is discharged to a shift position on the stacking portion. In the third operation, the sheet is discharged to a position displaced from the shift position on the stacking portion without conveying the sheet in the second conveyance direction.

A media conveying apparatus includes: a pair of first defining members defining an upstream part of a conveyance path in a conveyance direction; a pair of second defining members defining a downstream part of the conveyance path in the conveyance direction; a first conveyor to convey a medium in the upstream part in the conveyance direction; a second conveyor to convey the medium in the downstream part in the conveyance direction; and a tray disposed downstream from the pair of second defining members in the conveyance direction. The tray stacks the medium ejected from the conveyance path. The pair of first defining members and the pair of second defining members are movable relative to each other in the conveyance direction to lengthen and shorten the conveyance path including the upstream part and the downstream part.