A flattening device includes: a holder configured to support the following components; at least one flattening roller set, including a first flattening roller and a second flattening roller arranged oppositely at two sides of a sheet medium conveying path; and a power mechanism configured to drive the first and second flattening rollers to rotate. A surface of the first flattening roller is distributed with n arc-shaped grooves arranged in parallel with an axis direction of the first flattening roller, wherein n is a natural number greater than or equal to 1; and a surface of the second flattening roller is provided with at least one arc-shaped protruding portion in rolling engagement with the arc-shaped grooves of the first flattening roller; and wherein, the first flattening roller and the second flattening roller are in rolling engagement to form a conveying passage for the sheet medium.

A sheet medium flattening apparatus includes a support frame, wherein a first passage plate and a second passage plate are arranged on the support frame, and a gap between the first passage plate and the second passage plate is a conveying passage; a conveying wheel set arranged in the conveying passage and configured to drive a sheet medium to be conveyed inside the conveying passage; the first passage plate is provided with a through hole, and the second passage plate is provided with a groove at a position corresponding to the through hole; the sheet medium flattening device further includes a flattening block, and the flattening block is configured to be controlled by a driving mechanism to extend into and withdraw from the conveying passage.

The banknote temporary storage device includes: a pair of coiling tapes, a large coiling block, an upper and lower coiling block assemblies, and a banknote inlet/outlet. Each of the pair of coiling tapes has one end fixed on the large coiling block and another end, and the another ends of the pair of coiling tapes are respectively fixed to the upper coiling block assembly and the lower coiling block assembly. The banknote inlet/outlet includes an upper clamping roller and a lower clamping roller. The large coiling block is provided with a lower passage guide plate having one end rotatably arranged on the lower rotating shaft and a relatively free end, a tail portion of the free end is an arc-shaped portion concentric with the large coiling block, and an angle by which the arc-shaped portion surrounds the large coiling block ranges from 40 degrees to 50 degrees.

A paper sheet handling apparatus has a pickup roller, a stage, a pressure sensor, and a measuring unit. For each feeding process, in which the pickup roller feeds paper sheets until the pressure detected by the pressure sensor becomes less than a predetermined set value, the stage presses paper sheets against the pickup roller until the pressure detected by the pressure sensor reaches another set value. The pickup roller operates at a feeding speed of a first speed if a calculated feeding value is less than a threshold, and operates at a feeding speed of a second speed that is slower than the first speed if the calculated feeding value is equal to or greater than the threshold, the calculated feeding value being calculated based on: the amount of movement of the stage measured by the measuring unit; and the number of paper sheets fed by the feeding process.

A paper sheet transportation mechanism includes: transportation portions between which a paper sheet is sandwiched so as to transport the paper sheet; and a transportation guide that protrudes in a direction of the paper sheet sandwiched by the transportation portions such that the paper sheet is deformed into a wave shape in a cross section perpendicular to a transportation direction of the paper sheet, and that extends in the transportation direction.

A paper sheet storing/feeding device (e.g., escrow unit 40) includes a rotary member (e.g., drum 42) to an outer peripheral surface of which one end of a belt-shaped winding member (e.g., tapes 90, 92, 94) that winds a plurality of paper sheets one by one is connected, and a guiding unit (80, 85) that guides a paper sheet to prevent the paper sheet from sandwiching the winding member from both sides when the paper sheet is fed from the rotary member by unwinding the winding member from the rotary member.

A sheet handling apparatus (for example, banknote handling apparatus 20) includes a storing and feeding unit (25) in which a sheet is stored on a rotary member (for example, drum (25a)) by winding the sheet on the rotary member and the sheet wound on the rotary member can be fed from the rotary member, a transport unit (23) that transports the sheet fed from the storing and feeding unit (25), a curl correction mechanism (70) that corrects a curl of the sheet transported by the transport unit (23), and a stacking unit (for example, banknote collection bag (34)) in which the sheet that has passed through the curl correction mechanism (70) is stacked.

A medium processing device includes a drum; plural inner tapes; plural outer tapes; differing regions formed on a starting end portion that is an end at a drum side of at least one of the plural inner tapes or the plural outer tapes, and on a terminal end portion that is an inner reel side or an outer reel side of all of the inner tapes or all of the outer tapes; plural detecting unites that detect the physical property at a tape position of one of the inner tape or the outer tape that has a differing region formed on the starting end portion or the terminal end portion, the tape position being located between the drum and the inner and the outer reels; and a control unit that controls a rotation of the drum based upon the detection results of the plural detecting units.

A paper sheet storing mechanism (for example, a banknote storing mechanism (32)) includes an image capturing unit (60) that can capture an image of an inside of a storage bag (for example, a banknote storage bag (34)) held by holding unit (for example, holding members (36)), and a control unit (50) that determines a storing state of a paper sheet in the storage bag based on the image of the inside of the storage bag captured by the image capturing unit (60).

Tapes holding bills and wound round a drum are pressed against the drum by a winding roller, and the tapes are further pressed against the drum by a guide roller provided downstream of the winding roller in the tape winding direction of the drum. Thus, bills difficult to be curved along the outer circumferential surface of the drum, such as creased or wrinkled bills, can be curved along the outer circumferential surface of the drum, and the bills wound round the drum can be prevented from shifting or skewing.