A device for separating printing paper sheets comprises a base part and an obstruction element. The base part defines a printing paper accommodating cavity. A deforming mechanism is provided to make sure a middle part of the printing paper sheets can be arched and two edges can get close to the bottom of the printing paper accommodating cavity. The obstruction element is arranged with a middle access portion in cooperation with the deforming mechanism, and on two sides of the middle access portion is arranged with blocking portions through which only one printing paper sheet can pass at a time. The device for separating printing paper sheets makes more than one printing paper sheet that may be transmitted at a time during the transmission of the printing paper sheets. A printer achieves smooth transmission of printing paper sheets and alleviates problems such as downtime and failure of the printer.

Provided in a paper sheet feeding apparatus and a box making machine are: a plurality of wheels capable of supplying a sheet by coming into contact with a lower surface of the sheet; a grate liftable and lowerable to an ascending position positioned above upper edges of the plurality of wheels and a descending position positioned below the upper edges of the plurality of wheels; a drive motor; an elevating device capable of lifting the grate to the ascending position by rotating the drive motor in one direction and capable of lowering the grate to the descending position by rotating the drive motor in the other direction; and a control device capable of adjusting an amount by which the grate is lifted and lowered by the elevating device by controlling the drive motor.

The present invention discloses a card-feeding device and a badge and card printer. The card-feeding device comprises: a base on which cards are stacked, a card outlet being provided at one end of the base; a rotary card-feeding mechanism which is located below the bottommost card and provided with a rotary swing arm and a push rod provided on the rotary swing arm, the push rod pushing the bottommost card towards the card outlet as the swing arm rotates; and a roller card-feeding mechanism which is installed between the rotary card-feeding mechanism and the card outlet and provided with a roller with an outer edge protruding from the top surface of the base, the bottommost card being transported to the card outlet when the roller rotates.

A medium feeding apparatus includes a feed roller that feeds media. A separation roller nips the media together with the feed roller to separate it and is rotated in a first direction to feed the media. A motor applies driving torque to the separation roller in a second direction opposite to the first direction. A torque limiter, when rotation torque applied to the separation roller in the first direction exceeds a preset upper torque limit, causes the separation roller to rotate at idle in the first direction independently of the driving torque. During feeding operations, including feeding of first and second media, a controller that controls the motor provides a break period in which the motor is not driven. The break period contains the timing when a rear edge of the first medium leaves a nip position between the feeding and separation rollers.

A medium conveying apparatus includes a medium tray, a feed roller, an upper guide, a movement sensor including an arm movably provided by the fed medium on the upper guide and on an upstream side of the feed roller, to generate a movement amount signal corresponding to a movement amount of the arm, a medium sensor to detect a presence of the medium at a predetermined position of the medium tray, a processor to determine whether a feeding abnormality of the medium has occurred based on the movement amount signal, detect a size of the medium placed on the medium tray based on a detection result by the medium sensor, and stop feeding of the medium by the feed roller when the processor determines that the feeding abnormality of the media has occurred and the detected size of the media is equal to or less than a predetermined size.

A media processing device includes: a hopper for supporting a stack of media units (e.g. cards), the hopper including (i) a gate wall configured to abut leading edges of the media units and (ii) an outlet defined at an end of the gate wall; a pick roller at the outlet for engaging an outer one of the media units in the stack and dispensing the outer media unit from the hopper to a media processing path; the gate wall including a flexible gate at the outlet, the flexible gate configured to deflect toward the media processing path responsive to the outer media unit being driven into the flexible gate by the pick roller, wherein the outer media unit deflects when passing by the flexible gate, permitting the outer media unit to be dispensed from the hopper.

A document receiving apparatus comprises a receiving port configured to receive a document into an apparatus main body, a document stopper configured to be pivotable between a first posture in which reception of the document is suppressed and a second posture in which the reception is permitted, a holding portion configured to hold the document stopper in the first posture, and a biasing portion configured to bias the document stopper held in the first posture to be set in the second posture

A paper blocking device includes a pick roller, a cover plate, a paper blocking component, a driving mechanism, a gear mechanism and a motor. The cover plate has a pick roller window penetrated the cover plate. The pick roller is positioned in the pick roller window. The paper blocking component is coupled to the cover plate. The driving mechanism has a driving shaft and a cam being connected to the driving shaft. The cam is connected to the paper blocking component. The gear mechanism is connected to the driving shaft. The motor is connected to the gear mechanism. As described above, the paper blocking device can block papers and align the leading edges of papers.

A feed detection unit which detects a document which is fed is provided at a position between a pinching position at which a feed roller and a frictional force application portion pinch the document and an intersecting position at which a tangential line of the feed roller which is closer to a downstream side in a transport direction than the pinching position is perpendicular to a transport path in the transport direction, which is a different position from the feed roller in a width direction which intersects the transport direction.

A paper feeding device 100 includes a support hook 5 that supports a lower edge of a front side of a bundle of stacked paper sheets X, and a paper trailing edge storing part 32 provided between a lower end of the abutting surface 31 and the paper feeding table 11, and the paper feeding device retracts the lowermost layer paper sheet of the loaded paper sheets so as to store its trailing edge in the paper trailing edge storing part 32 and then advance it.