A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.

The pick-up device disposed between the input tray and the feeding path and includes a Paper feeding unit for feeding the paper from the input tray; a separation roller disposed opposite to the Paper feeding unit and contacting each other; a blocking arm disposed between the input tray and the Paper feeding unit, and configured to be switchable disposed between a blocking position for blocking the paper and a feeding position for passing the paper through the feeding path; and a guiding arm, the guiding arm is disposed in the feeding path through a pivot shaft, and includes a guiding portion, the pivot shaft is located upstream of the separation roller, and the guiding portion is swingable disposed in a seam space formed by the Paper feeding unit and the separation roller; and wherein a distance from the axle of the separation roller to the guiding portion is greater than the wheel diameter of the separation roller, and the vertical distance between the paper to be fed and the guiding portion is greater than the vertical distance between the paper to be fed and the separation roller.

A medium transport apparatus includes: a feed unit feeds a medium to a transport direction; a first detection unit disposed upstream of the feed unit, and detects movement of the fed medium; a second detection unit disposed downstream of the first detection unit and detects an inclination of the medium; and a control unit detects the inclination of the medium based on a signal of the second detection unit and stop transfer of the medium when the inclination exceeds a threshold value, and the plurality of the threshold values have a relationship such that when a medium length in the transport direction is a second length being shorter than a first length, a relatively higher value is produced than in a case in which the medium length is the first length, and the control unit selects a threshold value based on a detection value of the first detection unit.

A method for operating a paper feed system for use in a printing apparatus that detects multi-feeds and separates all sheets while allowing a single sheet to continue is disclosed. The separation method controls a motor for the separator roller that can be torque controlled, allowing varying torques depending on media type and/or user input. The separation method detects multi-feeds, correct the multi-feed, and ultimately feeds one sheet at a time through the automatic document feeder.

An elastic body portion includes an inner circumferential portion and an outer circumferential portion which serves as an outer circumferential side with respect to the inner circumferential portion and a space portion between the inner circumferential portion and the outer circumferential portion, and a plurality of joining portions which join the inner circumferential portion and the outer circumferential portion to each other in the space portion, in which at least a portion of each of the joining portions has a curved shape, and in which the joining portions are each joined to the inner circumferential portion and the outer circumferential portion such that connecting portions between the joining portions and the inner circumferential portion and connecting portions between the joining portions and the outer circumferential portion do not form acute angles in the space portion.

A medium conveying apparatus includes a medium tray, a feed roller to feed a medium placed on the medium tray, a brake roller facing the feed roller, a pressing member to press the brake roller to the feed roller side, a processor to detect media multi-feed, and control the feed roller and the brake roller in such a way that the medium is reset to the medium tray when the media multi-feed of media is detected. The processor controls the pressing member in such a way that a pressing force of the brake roller when resetting the medium to the medium tray is greater than a pressing force of the brake roller when feeding the medium.

A transport device includes: a medium support unit having a placement surface where a sheet-like medium is placed; a transport unit supplied with the medium placed at the placement surface and transporting the medium in a transport direction along a sheet surface of the medium; an ultrasonic transmitting unit provided at a part of the medium support unit and transmitting an ultrasonic wave; an ultrasonic receiving unit provided at another part of the medium support unit, and receiving the ultrasonic wave and outputting a received signal; and a floating detection unit determining whether a floating of the medium from the placement surface is present or not, based on the received signal.

An apparatus and a corresponding method for singling value documents includes: an input device which is devised for receiving a stack of value documents, a transport device which is devised for drawing a value document from a stack of value documents located in the input device, and a transport element, which is devised to influence the drawing of the value document from the stack of value documents. At least one sensor is provided which is devised to capture a size of the stack located in the input device, in particular a height of the stack and/or a fill level of the input device, and a density of the stack. A control device is devised to control the transport device and/or the transport element based on the captured size of the stack and/or the captured density of the stack.

A paper separation structure includes: an actuating unit being selectable to generate a forward and reverse actuating torque (T); a one-way actuator connected to said actuating unit and being able to break the connection of said actuating unit while said actuating unit generates a reverse actuating torque (T); a breaking unit having a threshold of breaking torque (TL1), and said braking torque (TL1) set lower than said actuating torque (T); and a separating roller connected to said one-way actuator and said braking unit to receive said actuating torque (T) and said braking torque (TL1). With the combination of components mentioned above, the paper separation structure of the present invention has a plurality of torque thresholds for paper separation and can switch between active and passive separation modes according to requirements.

A medium feeding device includes a medium placement portion on which a bunch of media is placed, a feed roller that feeds a lowermost medium of the bunch of media placed on the medium placement portion, a separation roller that is provided at a position facing the feed roller and separates a medium from the bunch of media, and a plurality of restricting portions that are provided on an upstream side of a nip position between the separation roller and the feed roller at an interval in a medium width direction which is a direction intersecting a medium feeding direction and come into contact with leading ends of upper media of the bunch of media excluding at least the lowermost medium such that the leading ends are restricted from coming into contact with the separation roller regardless of whether the separation roller is deformed or not.