In order to improve the ability to feed paper currency from a deposit unit and to reduce the height of the device, this paper currency handling device (100) has a paper currency recognition unit (170) and a paper currency storage unit (200) (which does not include a deposit unit (120) and a withdrawal unit (140)) accommodated within a chassis section (112) of a vault (110), so that deposited paper currency is transported to the paper currency storage unit (200) and withdrawn paper currency is transported from the paper currency storage unit (200) as the paper currency passes through the chassis section (112). When the paper currency (B) is fed to a feed path unit (124) connecting the deposit unit (120) and an upstream deposit path (181), the vanes (129) of impellers (128) make contact with the paper currency (B) retained in the deposit unit (120), with the contact being on the feed path unit (124) side.

The present disclosure provides a transmission assembly and an office machine comprising the same. The transmission assembly includes a body, a first roller, a second roller, a flexible element, a third roller and a transmission element. The first roller is pivoted at a first position of the body, the second roller is pivoted at a second position of the body, one end of the flexible element connects to the body, the third roller is pivoted besides the first roller in parallel and rotates with the first roller simultaneously, and a transmission element is used to surround axes of the first roller and the second roller; wherein, the rotating directions of the first roller, the second roller, the third roller and the transmission element are the same. The present disclosure provides another office machine using the same.

A sheet feeding apparatus includes a sheet supporting portion movable between a sheet supporting position and a first storage position. A sheet feed unit includes a sheet feed portion to feed the supported sheet, and an abutment member regulates movement of the sheet in a sheet feed direction by abutting against a downstream end of the sheet. An engagement member turns into an engagement state and a release state. The sheet feed unit is positioned in a sheet feed position or a waiting position and is exposed to an outside of the sheet feeding apparatus when the sheet supporting portion is in the sheet supporting position. The sheet supporting portion includes a pressing portion to turn the engagement member from the engagement state to the release state by pressing the engagement member when the sheet supporting portion moves from the sheet supporting position to the first storage position.

A medium conveying apparatus includes a driving source to generate a driving force, a separation roller to separate a medium with the driving force, a mechanical clutch, and an applying part. The mechanical clutch includes a driving wheel rotated by the driving force from the driving source, and a driven wheel coupled to and uncoupled from the driving wheel by rotation of the driving wheel. The driven wheel coupled to the driving wheel transmits the driving force from the driving wheel to the separation roller. The applying part applies, to the driven wheel, a frictional force for restricting rotation of the driven wheel rotated by the driving wheel, and the frictional force applied by the applying part is greater than a frictional force between the driving wheel and the driven wheel.

A medium feeding apparatus includes a media tray, a feed roller to feed a medium placed on the media tray, a driving source to generate a driving force, and a drive transmission assembly to transmit the driving force from the driving source to a rotation shaft of the feed roller. The drive transmission assembly is located inner than an end of a medium conveying path in a direction intersecting a medium conveying direction.