A medium conveying apparatus includes a plurality of feed rollers, each feed roller rotating independently at a respective speed to feed a medium, a first sensor located on a downstream side of the plurality of feed rollers in a medium conveying direction and also in a central part in a direction perpendicular to the medium conveying direction, to detect the medium, a second sensor and a third sensor located on both sides of the first sensor in the direction perpendicular to the medium conveying direction, to respectively detect the medium, and a processor to change the speed of one of the plurality of feed rollers at least until the first sensor detects the medium when any of the second sensor or the third sensor detects the medium and the first sensor does not detect the medium within a predetermined time.

A sheet transport system for moving a sheet in a transport direction while adjusting a position of the sheet in a lateral direction normal to the transport direction to a target position, includes first and second pinch roller sets spaced apart from one another in the transport direction, each pinch roller set including two pairs of pinch rollers spaced apart from one another in the lateral direction, each pair forming a nip for pinching and driving the sheet with an individually controllable speed; a detection system for detecting a position of the sheet in the lateral direction while the sheet is pinched by the first pinch roller set; and a control system configured for carrying out the following actions: by controlling the speeds of the pinch rollers of the first pinch roller set before the sheet has reached the second pinch roller set, rotating the sheet by a first rotation angle for adjusting a given reference point on a leading part of the sheet to its target position; and when the sheet has left the first pinch roller set and while the reference point travels along a path segment that is symmetric with respect to the second pinch roller set, rotating, by controlling the speeds of the pinch rollers of the second pinch roller set, the sheet by a second rotation angle for aligning a leading edge of the sheet in the lateral direction.

A sheet conveying device, which is included in an image forming apparatus, includes a pair of rotary bodies configured to convey a sheet and correct a positional deviation of the sheet, a pair of downstream side sheet conveying bodies disposed downstream from the pair of rotary bodies in a sheet conveying direction and configured to convey the sheet, and a detector configured to detect separation of the pair of rotary bodies. The pair of rotary bodies moves the sheet by moving from a home position on a sheet conveyance passage through which the sheet passes. The pair of rotary bodies moves to the home position while the pair of downstream side sheet conveying bodies is conveying the sheet, in response to detection of the separation of the pair of rotary bodies by the detector.

A sheet conveying device includes a position detector configured to detect a position of a side end portion of a conveyance target medium, a position adjuster configured to move in at least one of a width direction of the conveyance target medium and a rotation direction of the conveyance target medium within a plane of sheet conveyance, while conveying the conveyance target medium, and adjust a position of the conveyance target medium, according to the position of the side end portion of the conveyance target medium detected by the position detector, a transfer rotary body disposed downstream from the position adjuster in a sheet conveying direction and having a receiver mounted on the rotary body to receive the conveyance target medium, and circuitry configured to change a rotation speed of the transfer rotary body according to the position of the conveyance target medium after adjusted by the position adjuster.

The image forming apparatus includes a transfer section that transfers an image to a sheet; a sheet conveying member that is provided on an upstream side of the transfer section in a conveying direction of the sheet and that conveys the sheet; and a hardware processor that controls displacement of the sheet conveying member such that the sheet is displaced in a width direction of the sheet. The hardware processor causes a detector that detects an edge of the sheet in the width direction to detect the edge of the sheet after displacement of the sheet conveying member has been started, and causes the displacement to be terminated on the basis of the detected result such that the edge of the sheet reaches a target position.

An image reading apparatus includes a feeding roller that includes a first roller and a second roller provided at an interval in a width direction intersecting a medium feeding direction, and feeds a sheet from a placing section; and a skew detection section that detects skew of the sheet fed from the feeding roller. Skew is corrected by giving a difference between a rotation speed of the first roller and a rotation speed of the second roller with respect to at least one of the relevant sheet detected by the skew detection section and subsequent sheets fed following the relevant sheet based on a skew amount in the sheet.

A printing device to skew print media in accordance with pre-determined offsets, in order to assist a user to delineate the print media of successive print jobs.

An apparatus for aligning at least one note of value along a transport path has at least one transport element and at least one first drive unit for driving the transport element. The driven transport element moves the note of value along the transport path in a transport direction. The transport element includes an endless drive belt, which is deflected over at least two rotatably mounted deflecting elements and a second drive unit for displacing one of the deflecting elements along its axis of rotation. By displacing the deflecting element, the note of value contacting the belt is moved obliquely to the transport direction. A further apparatus includes at least one vane wheel by which the note of value is movable transversely to the transport direction.

This disclosure relates to a banknote validator. The banknote validator comprises a banknote path disposed within an interior of the banknote validator, the banknote path including a banknote imaging zone, one or more banknote edge detection surfaces each configured to provide images of edges of a banknote in the banknote path, a banknote imaging sensor configured to provide an image of at least one portion of the banknote imaging zone, and an image sensor configured to capture the images of the edges of the banknote provided by the one or more banknote edge detection surfaces, and capture the image of the at least one portion of the banknote imaging zone provided by the banknote imaging sensor.

A sheet conveying device, which is incorporated in an image forming apparatus, includes a first detector to detect an angle deviation of a recording medium to a sheet conveying direction, a second detector to detect a lateral shift of the recording medium to a width direction, a third detector to detect at least one of the angle deviation and the lateral shift after correction of the angle deviation detected by the first detector and the lateral shift detected by the second detector, and a rotary body to perform a primary movement by (1) rotating in the sheet conveying direction and returning to a reference position and by (2) moving in the width direction and returning to the reference position, and a secondary movement by performing at least one of (1) and (2) after the primary movement.