A sheet stacking device includes a discharge port, an alignment wall, a discharge tray, an alignment belt, and a guide part. The alignment wall extends in an upper-and-lower direction below the discharge port. The discharge tray is provided so as to be capable of moving up and down along the alignment wall. The alignment belt with endless is stretched along the alignment wall in the upper-and-lower direction. The alignment belt has an inner circumferential surface facing the alignment wall and an outer circumferential surface with which an upstream edge of the sheet stacked on the discharge tray comes into contact, and circulates at a same speed as the discharge tray in synchronization with the discharge tray. The guide part is configured to be provided between the alignment wall and the alignment belt. With the guide part, the inner circumferential surface of the alignment belt slides in contact.

A sheet conveyance apparatus includes a control unit (120) that controls driving of a belt drive mechanism (4). The control unit (120) performs control such that the sheet is conveyed from the sheet accumulation area if (a) it is determined that the number of sheets currently accumulated in the sheet accumulation area is two or greater, while the sheet is not conveyed from the sheet accumulation area if (b) it is determined that the number of sheets currently accumulated in the sheet accumulation area is one.

A rotary banknote conveying device applicable to a banknote inlet/outlet of an automatic teller machine includes a banknote clamping mechanism configured to convey banknotes from the banknote inlet/outlet to an inlet of a banknote conveying passage inside the automatic teller machine; a transmission mechanism including a drive motor, a belt and a pair of pulleys; a first rotary driving mechanism including a first rotary motor and a first transmission gear and configured to drive the banknote clamping mechanism to rotate by a first angle at the banknote inlet/outlet; a second rotary driving mechanism including a second rotary motor and a second transmission gear and configured to drive the banknote clamping mechanism to rotate by a second angle at the inlet of the banknote conveying passage; and a central control mechanism including a control unit, a first position sensor, and a second position sensor.

A sheet stacking device includes a discharge port, an alignment wall, a discharge tray, an alignment belt, and a guide part. The alignment wall extends in an upper-and-lower direction below the discharge port. The discharge tray is provided so as to be capable of moving up and down along the alignment wall. The alignment belt with endless is stretched along the alignment wall in the upper-and-lower direction. The alignment belt has an inner circumferential surface facing the alignment wall and an outer circumferential surface with which an upstream edge of the sheet stacked on the discharge tray comes into contact, and circulates at a same speed as the discharge tray in synchronization with the discharge tray. The guide part is configured to be provided between the alignment wall and the alignment belt. With the guide part, the inner circumferential surface of the alignment belt slides in contact.

A sheet discharging device includes: a medium supporting portion configured to support a transported medium, the medium supporting portion being configured to swing; a stacking portion which is provided vertically below the medium supporting portion and on which the medium dropped from the medium supporting portion is stacked, the stacking portion being configured to move up and down; and a detecting portion that detects swinging of the medium supporting portion, in which the detecting portion detects the swinging of the medium supporting portion when the medium on the rising stacking portion comes into contact with a lower surface of the medium supporting portion.

A discharging device includes: a pair of medium supporting portions that are provided so as to face each other in a width direction intersecting a transporting direction in which a medium is transported and that support the medium that is transported; and a stacking portion that is provided vertically below the pair of medium supporting portions and on which the medium that drops from the pair of medium supporting portions is stacked, each of the pair of medium supporting portions is configured to move in the width direction, the pair of medium supporting portions are configured to be arranged, after the medium is dropped onto the stacking portion, at positions at which a distance in the width direction becomes a predetermined distance, and the predetermined distance varies in accordance with a width of the medium stacked on the stacking portion.

A sheet conveyance apparatus includes a control unit (120) that controls driving of a belt drive mechanism (4). The control unit (120) performs control such that the sheet is conveyed from the sheet accumulation area if (a) it is determined that the number of sheets currently accumulated in the sheet accumulation area is two or greater, while the sheet is not conveyed from the sheet accumulation area if (b) it is determined that the number of sheets currently accumulated in the sheet accumulation area is one.

An example stacking system comprises a stacking member movable between a first position in which the stacking member is configured to partially support a first stack of printed substrates, and a second position in which the stacking member is disengaged from the first stack. A receptacle positioned below the stacking member is configured to hold a second stack of printed substrates. A controller is configured to cause the stacking member to move between the first position and the second position when the first stack satisfies a criterion, thereby depositing the first stack into the receptacle on top of the second stack.

An example stacking system comprises a stacking member movable between a first position in which the stacking member is configured to partially support a first stack of printed substrates, and a second position in which the stacking member is disengaged from the first stack. A receptacle positioned below the stacking member is configured to hold a second stack of printed substrates. A controller is configured to cause the stacking member to move between the first position and the second position when the first stack satisfies a criterion, thereby depositing the first stack into the receptacle on top of the second stack.

A sheet discharging device includes: a medium supporting portion configured to support a transported medium, the medium supporting portion being configured to swing; a stacking portion which is provided vertically below the medium supporting portion and on which the medium dropped from the medium supporting portion is stacked, the stacking portion being configured to move up and down; and a detecting portion that detects swinging of the medium supporting portion, in which the detecting portion detects the swinging of the medium supporting portion when the medium on the rising stacking portion comes into contact with a lower surface of the medium supporting portion.