A conveyance mechanism capable of attaining high conveyance performance and protecting a conveyance object and a mechanism itself, a medium processing device and a conveyance method using the conveyance mechanism are provided to solve the problem. The conveyance mechanism includes a conveyance passage which is a passage where a conveyance object is conveyed, a conveyance member moving the conveyance object along the conveyance passage, a motor driving the conveyance member, a control part controlling an output torque of the motor, a conveyance state identifying means identifying a conveyance state that is a position and/or a conveyance direction of the conveyance object in the conveyance passage, and a storage part which upper limit torque information which is an upper limit value of an output torque allowable for the motor or a parameter value required for calculation of the upper limit value is registered for each type of the conveyance state.

A medium feeding device includes an imaging unit which images a medium tip end portion from a position of facing a face of the medium on a downstream side of a nipping position of the medium using a feeding unit and a separating unit; and a determining unit which determines whether or not there is transport disorder by evaluating a state of a boundary between a path member which forms a medium transport path and a medium tip end from image data obtained by the imaging unit, in which the determining unit sets a rectangular determining region including at least a part of the boundary with respect to the image data, and determines whether or not there is transport disorder based on a length of a boundary in the determining region.

A friction sheet feeding machine is provided. The friction sheet feeding machine comprises a hopper configured to hold a stack of items. The friction sheet feeding machine also comprises a receiver configured to receive an item from the stack of items. The friction sheet feeding machine also comprises a separating mechanism configured to separate the item from the stack of items. The separating mechanism comprises a drive mechanism. The drive mechanism is configured to operate in a forward direction and a reverse direction. The friction sheet feeding machine also comprises a controller configured to generate signals to the drive mechanism to operate in the forward direction for a first period of time, and in the reverse direction for a second period of time.

A friction sheet feeding machine is provided. The friction sheet feeding machine comprises a hopper configured to hold a stack of items. The friction sheet feeding machine also comprises a receiver configured to receive an item from the stack of items. The friction sheet feeding machine also comprises a separating mechanism configured to separate the item from the stack of items. The separating mechanism comprises a drive mechanism. The drive mechanism is configured to operate in a forward direction and a reverse direction. The friction sheet feeding machine also comprises a controller configured to generate signals to the drive mechanism to operate in the forward direction for a first period of time, and in the reverse direction for a second period of time.

A medium feeding apparatus includes a pickup roller that feeds a medium from a medium mount section. A support member supports a pickup roller and swings around a swing axis to switch between a feeding position and a non-feeding position. A separation roller separates the medium from other media. A feed roller feeds the medium toward the downstream end. The separation and feed rollers are disposed downstream of the pickup roller. A control section controls a position of the support member. After the pickup roller and the feed roller start rotating, when the control section determines that the separation roller stops rotating or returns the medium by rotating in a reverse direction, based on a detection signal from a rotation sensing section configured to detect rotation of the separation roller, the control section causes the support member to switch from the feeding position to the non-feeding position.

A medium feeding apparatus includes a pickup roller that feeds a medium from a medium mount section. A support member supports a pickup roller and swings around a swing axis to switch between a feeding position and a non-feeding position. A separation roller separates the medium from other media. A feed roller feeds the medium toward the downstream end. The separation and feed rollers are disposed downstream of the pickup roller. A control section controls a position of the support member. After the pickup roller and the feed roller start rotating, when the control section determines that the separation roller stops rotating or returns the medium by rotating in a reverse direction, based on a detection signal from a rotation sensing section configured to detect rotation of the separation roller, the control section causes the support member to switch from the feeding position to the non-feeding position.

A paper sheet accommodation apparatus includes: a supply reel which supplies a wound band-like material; a winding drum around which a paper sheet is wound together with the band-like material supplied from the supply reel; a taking in and out section through which the paper sheet is taken in and out; and a rotating shaft that is disposed in the taking in and out section, is rotatably provided with a pulley that supports the band-like material, and has a transport roller fixed thereto, which transports the paper sheet.

A paper sheet accommodation apparatus includes: a supply reel which supplies a wound band-like material; a winding drum around which a paper sheet is wound together with the band-like material supplied from the supply reel; a taking in and out section through which the paper sheet is taken in and out; and a rotating shaft that is disposed in the taking in and out section, is rotatably provided with a pulley that supports the band-like material, and has a transport roller fixed thereto, which transports the paper sheet.

An image forming apparatus has an image forming section configured to form an image on an image receiving medium conveyed along a conveyance path from a cassette thereto, a diverted conveyance path connected to the conveyance path at a first point on the conveyance path upstream of the image forming section, a movable guide that is controlled to guide the image receiving medium along a first path that includes a second point on the conveyance path downstream of the first point or a second path that includes the diverted conveyance path, a group of sensors positioned to detect at least two positions of a leading edge of the image receiving medium before the image receiving medium is guided by the movable guide, and a controller configured to control the movable guide to guide the image receiving medium along the first or second path based on detection results of the sensors.

A pickup method and a pickup device which enable to properly lift an individual target bag body among a plurality of conveyed bag bodies are provided. A pickup device includes: a transfer device that holds a target bag body among a plurality of bag bodies by a conveying device while the plurality of bag bodies are conveyed, and lifts a whole of the target bag body after lifting a part of the target bag body; and a pickup control unit that obtains position suggestion data indicating a position of the target bag body, and controls the transfer device on a basis of the position suggestion data, wherein the pickup control unit moves the transfer device according to the position suggestion data, and makes the transfer device liftably hold the target bag body.