Medium processing device and medium transaction device

A medium transaction device, comprising:

• a user interface that receives an input for a transaction instruction relating to a sheet-shaped medium;
• a casing that has an opening through which an interior of the casing communicates with an exterior thereof, and a door that opens and closes the opening;
• a first unit that is storable in the casing, with a first end thereof at a side of the opening, the first unit being configured to be pullable out from the casing;
• a second unit that is storable in the casing, with a second end thereof at the side of the opening, the second unit being configured to be pullable out from the casing;
• a conveyance section, including a roller, provided in the first unit, the conveyance section conveying a medium by rotating the roller;
• a roller manual drive section that is provided in the first unit, and that is configured to allow the roller to be manually rotated;
• a motor;
• a belt that transmits a driving force from the motor;
• and
• a cover that covers the belt, and that has a cover opening that exposes the operation knob, wherein
• the medium is handed off at a hand-off area of the first unit to which the second unit is connected,
• the roller manual drive section is provided in a vicinity of the first end of the first unit when the first unit is stored in the casing, and
• the roller is provided in a vicinity of the hand-off area, and rotates when the medium is handed off between the first unit and the second unit,
• the roller is a drive roller that rotates around a drive shaft, and
• the roller manual drive section is an operation knob provided coaxially with the drive shaft.