Abstract: There is provided a medium transport device including a placement section on which a medium is placed, a transport path through which the medium is transported, a feeding roller that feeds the medium, a set guide configured to switch between a contact position where the medium and the feeding roller are brought into contact and a separation position where the medium and the feeding roller are separated, a restricting section configured to switch between a restricting position for restricting feeding of the medium by coming into contact with a leading end of the medium and an allowing position for allowing the feeding of the medium, and a drive source that generates power for switching of the set guide and switching of the restricting section. The set guide and the restricting section are provided below the transport path in a direction of gravity.

Abstract: There is provided a medium transport device including a placement section on which a medium is placed, a transport path through which the medium is transported, a feeding roller that feeds the medium, a set guide configured to switch between a contact position where the medium and the feeding roller are brought into contact and a separation position where the medium and the feeding roller are separated, a restricting section configured to switch between a restricting position for restricting feeding of the medium by coming into contact with a leading end of the medium and an allowing position for allowing the feeding of the medium, and a drive source that generates power for switching of the set guide and switching of the restricting section. The set guide and the restricting section are provided below the transport path in a direction of gravity.

Abstract: A scanner includes the following features. A first driven roller sandwiches a document together with a first drive roller and is capable of rotating in a driven manner. A second driven roller sandwiches a document together with a second drive roller and is capable of rotating in a driven manner. A driving unit rotationally drives the first drive roller and the second drive roller. A transmission unit transmits a rotational force from one of the first driven roller and the second driven roller to another of the first driven roller and the second driven roller.

Abstract: A medium feeding apparatus includes a medium supporting portion supporting a medium, a feeding roller that feeds the medium, a separation portion configured to advance and retreat with respect to the feeding roller, a path forming member that is a member positioned upstream in a medium feeding direction with respect to a contact position between the feeding roller and the separation portion, that is configured to advance and retreat with respect to the feeding roller, and that is configured to narrow a medium feeding path directed toward the contact position, and a first pressing portion pressing the path forming member toward the feeding roller, in which the path forming member displaces the separation portion in a direction away from the feeding roller when the path forming member is pushed down in a direction retreating from the feeding roller by a medium having a thickness exceeding a predetermined thickness.

Abstract: A medium feeding apparatus includes a medium mounting section, a movable edge guide that guides both edges of the medium mounted on the medium mounting section and has a first edge guide and a second edge guide, a feeding section, and a width adjuster configured to adjust a guide width depending on the medium. The width adjuster includes a first adjuster having a first holding section and a first guiding section, and the second adjuster having a second holding section and a second guiding section. The first holding section holds a part of the first edge guide, the first guiding section guides the edge of the medium between the first edge guide and the second guiding section, the second holding section holds a part of the second edge guide, and the second guiding section guides the edge of the medium between the second edge guide and the first guiding section.

Abstract: An image reading apparatus includes a feeding roller configured to feed a document, a separation roller configured to pinch the document with the feeding roller at a nipping position for separation, a first sending roller located downstream of the feeding roller and configured to send the document downstream, a read sensor located downstream of the first sending roller and configured to read the document, and a second sending roller located downstream of the read sensor and configured to send the document downstream. A guide surface is disposed downstream of the nipping position and below a common tangent line to the first sending roller and the second sending roller. The guide surface is positioned to come in contact with a front end of the document sent downward from the nipping position beyond the common tangent line to guide the document upward toward the common tangent line.

Abstract: An image reading apparatus includes a feeding roller configured to feed a document, a separation roller configured to pinch the document with the feeding roller at a nipping position for separation, a first sending roller located downstream of the feeding roller and configured to send the document downstream, a read sensor located downstream of the first sending roller and configured to read the document, and a second sending roller located downstream of the read sensor and configured to send the document downstream. A guide surface is disposed downstream of the nipping position and below a common tangent line to the first sending roller and the second sending roller. The guide surface is positioned to come in contact with a front end of the document sent downward from the nipping position beyond the common tangent line to guide the document upward toward the common tangent line.

Abstract: A medium feeding apparatus includes a medium mounting section, a movable edge guide that guides both edges of the medium mounted on the medium mounting section and has a first edge guide and a second edge guide, a feeding section, and a width adjuster configured to adjust a guide width depending on the medium. The width adjuster includes a first adjuster having a first holding section and a first guiding section, and the second adjuster having a second holding section and a second guiding section. The first holding section holds a part of the first edge guide, the first guiding section guides the edge of the medium between the first edge guide and the second guiding section, the second holding section holds a part of the second edge guide, and the second guiding section guides the edge of the medium between the second edge guide and the first guiding section.