A sheet transport apparatus includes a first casing in which a transport path is formed; a transport unit which transports a sheet along the transport path; a second casing which is provided to be movable with respect to the first casing; a sheet support unit which is rotatably provided in the first casing at a position on a side to which the second casing is moved, the sheet support unit being changeable between a first state, a second state, and a third state and supporting the sheet at least in the third state; and an urging unit which urges the sheet support unit toward the first state within a range from the first state to the second state and which urges the sheet support unit toward the third state within a range from the second state to the third state.

A banknote-passing type banknote conveying device, used at a banknote inlet-outlet of an automatic teller machine, includes a mounting lateral plate, a banknote stacking mechanism, a banknote clamping and conveying mechanism, a pressing mechanism, a jacking mechanism, and a central control unit for controlling the operation of the above mechanisms. The banknote-passing type banknote conveying device uses a lifting motor and a connection rod to drive a lifting plate to move the banknotes up and down, and uses a pressing plate to move the banknotes back and forth. The functions of stacking and passing banknotes are achieved in an effective space. Moreover, a pull type electromagnet and a spring are used to control the opening and closing of the banknote clamping and conveying mechanism, thus a traditional motor control method and the like can be omitted, such that the cost is low, and the reliability is high.

A medium conveyance apparatus including a first unit on one side of a conveyance path of a sheet-shaped medium, a second unit on the other side of the conveyance path and facing the first unit, a guide unit that is provided at the second unit and that contacts the medium between the first and second unit to move the second unit in a direction of separating from the conveyance path, an imaging unit provided at one of the first and second unit, a reference plate whose image can be captured by the imaging unit and that is provided at the other of the first and second unit, and a detecting unit for detecting the medium in the conveyance path, the detecting unit being provided in the conveyance path at an upstream position of a reading position where the imaging unit reads the medium.

A printing apparatus, in which it is possible to easily clean the surface of a feeding roller and a separation roller by using a damp cloth or the like, includes a feeding roller that feeds a printing medium; a separation roller capable of selectively taking a state where a separating force that separates a plurality of printing media conveyed by the feeding roller one by one has occurred and a state where the separating force has not occurred at a position at which the separation roller is in pressure contact with the feeding roller; and a control unit configured to perform control to bring about a standby state where transmission of a driving force between a driving source of the feeding roller and the feeding roller is shut off in a state where the separating force has not occurred and the feeding roller and the separation roller abut each other.

A medium transport device includes a first roller pair and an ultrasonic detection section positioned downstream of the first roller pair, wherein the ultrasonic detection section includes a transmission sensor chip configured to emit ultrasonic waves along a first axis, a receiving sensor chip that is configured to receive the ultrasonic waves and that is disposed at a position on the first axis and, a transmission board on which the transmission sensor chip is mounted, a receiving board on which the receiving sensor chip is provided, a first protection member positioned between the transmission sensor chip and the medium, a second protection member positioned between the receiving sensor chip and the medium, a transmission board holder configured to hold the transmission board and the first protection member, and a receiving board holder configured to hold the receiving board and the second protection member.

A sheet feeder includes: a feed roller; a shutter movable between a restricting position restricting a leading edge of a sheet and a non-restricting position releasing the restriction on the sheet; and a controller configured to control rotation of the feed roller and movement of the shutter. The controller is configured to perform: a first feeding process of controlling the feed roller to rotate at a first rotational speed while the shutter is at the restricting position and of controlling the shutter to move to the non-restricting position from the restricting position no earlier than rotation of the feed roller at the first rotational speed: a reduction process of controlling a rotational speed of the feed roller to be less than the first rotational speed; and a second feeding process of controlling the feed roller to rotate at a second rotational speed.

A feeding roller for a document conveying apparatus includes a plurality of groove portions arranged with a regular interval in a width direction of the feeding roller on a surface of the feeding roller, and a projection portion provided between each pair of adjacent groove portions to scrape off paper particles on the external peripheral. The projection portion has a regular pattern extending in the width direction of the feeding roller.

A medium feeding device including a medium mounting portion where media are mounted; a feeding roller that feeds the media from the medium mounting portion by contacting a bottommost sheet of the media mounted in the medium mounting portion, and rotating; a separator that separates a sheet of the media by nipping the sheet between the feeding roller and the separator; an abutting member that is provided above the feeding roller, is switchable between a closed posture that blocks a feeding path of the media upstream of the separator and an open posture that opens the feeding path, abuts against a leading edge of the media mounted in the medium mounting portion, and includes a friction surface at a position where the abutting member abuts against the leading edge; and a biasing member that biases the abutting member toward the closed posture.

A recording apparatus comprises: a medium tray on which a medium is set vertically, or with a tilt; a feed roller that feeds the medium set on the medium tray by rotating while being in contact with the medium; a recording unit that performs recording on the medium; an urging mechanism for urging the medium and/or the feed roller in a direction of coming closer; and a restricting portion that faces a recording surface at a lower edge portion of the medium set on the medium tray and restricts movement of the lower edge of the medium, wherein the feed roller feeds the medium so that the lower edge of the medium can get over an upper end of the restricting portion.

User labor relating to determining on an alignment condition is reduced and a stable conveying operation is realized by aligning a sheet bundle also when a sheet bundle is added. A sheet bundle composed of multiple sheet materials is placed on a loading platform. An encoder pulse unit detects the amount of the sheet bundle placed on the loading platform based on the opening amount of a pressure plate. A control unit determines on an alignment condition according to the amount of the sheet bundle. Rotating members align the sheet bundle in accordance with the alignment condition. When it is determined that another sheet bundle has been added to the loading platform, the control unit updates the alignment condition according to the total amount of the other sheet bundle and the sheet bundle remaining on the loading platform.