Abstract: A sheet conveying device includes a pair of rollers, a biasing member, a guide member, a biasing support, and a biasing force changer. The pair of rollers includes a first roller and a second roller disposed in contact with the first roller. The pair of rollers is configured to hold a sheet between the first roller and the second roller. The biasing member is configured to bias the first roller toward the second roller. The biasing support is configured to support the biasing member and has a guide target member configured to slide along the guide member to move the biasing support. The biasing force changer is configured to change a biasing force of the biasing member along with movement of the biasing support. The guide target member has a portion projecting into a sheet conveyance passage through which the sheet is conveyed by the pair of rollers.

Abstract: To enable placement of a regulating member which regulates a position of an end of a paper sheet at a desired position, and stable sheet feeding. A fixing member for standard size is guided to engage with a fixing hole for standard size and, in a state where the fixing member for standard size positions a trailing end regulator, a fixing member for non-standard size does not engage with a rack gear.

Abstract: A sheet stacking device includes a stacker, a detector, a blower, and a moving device. A sheet is stacked on the stacker. The detector detects a stacking amount of the sheet on the stacker. The blower blows air to the sheet stacked on the stacker. The moving device moves the blower with respect to the stacker based on the stacking amount of the sheet detected by the detector.

Abstract: A first roller pair disposed upstream of a second roller pair is separated from each other by a separating mechanism. A control portion is configured to start rotating the second roller pair after a leading edge of a sheet in a sheet conveyance direction is abutted against the second roller pair in a stopped condition. The control portion is configured to execute, based on the information concerning the sheet length acquired by the acquisition portion, either one of a plurality of modes including a first mode of rotating an upstream roller pair and the first roller pair to convey the sheet while the first roller pair is in a contact condition and a second mode of operating the separating mechanism to separate the first roller pair and of rotating the upstream roller pair to convey the sheet while the first roller pair is in a separated condition.

Abstract: A switching device for switching transport directions of a recording medium includes a switching member and at least one rotation stopper. The switching member is configured to switch transport paths of the recording medium. The at least one rotation stopper is configured to hit the switching member to stop rotation of the switching member. The at least one rotation stopper is disposed asymmetrically in a direction perpendicular to a transport direction in which the switching member transports the recording medium.

Abstract: A sheet conveyer having a conveyer path to convey a sheet therein, a first path and a second path branched from the conveyer path, a flapper, a pair of pivot-shaft portions, and a supporting section, is provided. The flapper is movable between a first position to guide the sheet from the conveyer path to the first path and a second position to guide the sheet from the conveyer path to the second position. The pivot-shaft portions are located apart from each other in a widthwise direction. The pivot-shaft portions support the flapper pivotably. The supporting section is located between the pair of pivot-shaft portions in the widthwise direction. The supporting section supports the flapper pivotably. The supporting section includes a rotation-shaft portion being rotatable, a bearing portion, in which the rotation-shaft portion is fitted, and a buffer member located between the rotation-shaft portion and the bearing portion.

Abstract: A medium feeding device includes a storage unit that stores media in a form of a sheet, a delivery unit that is disposed downstream in a medium delivery direction relative to the media stored in the storage unit and that delivers the media individually, a transfer unit that is disposed above the storage unit and that sticks by suction to each of the media stored in the storage unit and transfers the media to the delivery unit individually, and a fluffing unit that is disposed beside the media stored in the storage unit in a direction intersecting the medium delivery direction. The fluffing unit fluffs an upper-side region of the media in a state of being separated by blowing air toward a side of the media.

Abstract: A flywheel system comprises a flywheel rotor comprising a rotor disc and a rotor shaft and has a longitudinal axis extending centrally through the rotor disc and the rotor shaft. The system further comprises a journal assembly configured to facilitate rotation of the flywheel rotor. The journal assembly comprises a sleeve having an aperture extending therethrough from a first end to a second, opposite end, a rod at least partially disposed within the aperture of the sleeve, and a nut coupled to a portion of the rod. The rod has a length greater than the sleeve such that a portion of the rod extends axially beyond the first end of the sleeve. A method of forming the flywheel comprises coupling the rod to the rotor shaft and pulling the second end of the rod to tension the rod. The nut maintains the tension in the rod when coupled thereto.

Abstract: An image forming apparatus includes a sheet container accommodating a recording medium therein, a sheet separating feeder including a sheet feeding body and a sheet separating body, an image forming part, and a bend applier. The sheet feeding body feeds the recording medium along with a surface movement thereof while the recording medium contacting the surface thereof. The sheet separating body forms a sheet separation nip region with the sheet feeding body and sandwiches the recording medium in the sheet separation nip region. The sheet separating feeder separates and feeds the recording medium contacting the sheet feeding body. The image forming part forms an image on the recording medium. The bend applier having a leading end of an elastic material contacts and bends the recording medium before the sheet separation nip region and generates a wrinkle extending on the recording medium in a sheet conveying direction.

Abstract: A medium regulating component for use in a medium feeding device feeding sheet media accommodated in an accommodating unit, the component for regulating excessive floating of a medium accommodated in the accommodating unit, the component includes: a regulating member protruding in a horizontal direction from an accommodating unit periphery and contacting the floating medium; a holding member holding the regulating member in a non-contact state with the medium; a first rotating shaft rotatably supporting the regulating member relative to the holding member; and a second rotating shaft rotatably supporting the holding member relative to the accommodating unit, in which when the regulating member receives a pressing force from below in a gravitational direction, rotates about the first rotating shaft in a state where movement of the holding member is suppressed, and pushes the holding member to rotate about the second rotating shaft.

Abstract: A sheet transport apparatus includes a first direction changing roller arranged along a transport path, wherein a sheet is transported along the transport path; a second direction changing roller disposed on the transport path, wherein the first direction changing roller and the second direction changing roller are next to each other in a direction perpendicular to the transport path, and the first direction changing roller and the second direction changing roller change an orientation of the sheet from a first orientation to a second orientation; and a control circuit configured to control one of the first direction changing roller and the second direction changing roller so that the first direction changing roller rotates slower than the second direction changing roller so as to change the orientation of the sheet from the first orientation to the second orientation.

Abstract: A feeding roller structure includes a fastening frame, a transmission component, a transmission roller and a floating coupler. The transmission component is assembled in the fastening frame. The transmission component includes a drive shaft mounted on two sides of the fastening frame. The transmission roller is concentrically arranged around the drive shaft. The floating coupler is mounted to the fastening frame. The floating coupler is coupled between the drive shaft and the transmission roller. Two opposite ends of the floating coupler are adjacent to and spaced from the two sides of the fastening frame to form two gaps. Each gap is formed between one end of the floating coupler and one side of the fastening frame. The two gaps limit an angular displacement of the floating coupler.

Abstract: An image reading apparatus, includes: a supply tray; a discharge tray; a conveyance guide; a reading sensor; a discharge unit, which includes a discharge opening to discharge the sheet conveyed by the conveyance guide to the discharge tray and is configured to move from a third position to a fourth as the document supported by the paper feed tray is decreased, the fourth position being higher than the third position; a first drive source, which generates a drive force; a first rotation body, which moves the movable plate by transmitting the drive force from the first drive source to the movable plate; and a second rotation body, which moves the discharge unit by transmitting the drive force from the first drive source to the discharge unit, wherein a diameter of the first rotation body and a diameter of the second rotation body are different from each other.

Abstract: A sheet conveyance apparatus includes a rotary member and an opposing member to convey a sheet in a conveyance nip, and an abutting member abutting a surface of the rotary member, which is supported between a first position and a second position with respect to the abutting member. When the sheet is not passing through the conveyance nip the rotary member is positioned at the first position and abuts the opposing member, and when the sheet is passing through the conveyance nip the rotary member is positioned at the second position which is more separated from the opposing member than the first position. The abutting member abuts the rotary member regardless of which of the first position and the second position the rotary member is positioned at, and the opposing member and the abutting member are supported so they do not move in a radial direction of the rotary member.

Abstract: A conveying device includes: a first conveyance member that is provided upstream of the conveyance path; a guide member that is disposed, along the conveyance path, downstream of the first conveyance member in the conveying direction; and a second conveyance member that is disposed downstream of the guide member in the conveying direction and conveys the envelope guided by the guide member, downstream in the conveying direction, wherein the guide member has a flapper relief that has retracted away from the conveyance path such that a rise portion of the flapper generated due to the curve of the conveyance path passes through the flapper relief.

Abstract: A medium processing device includes a conveyance guide that forms first, second and third conveyance paths that intersect, a blade configured to be rotatable around a blade center point, and that switches a conveyance route of the medium by connecting any two of the three conveyance paths with each other, and a first pair, second pair and third pair of conveyance rollers that are rotatable and are configured to hand off the medium between two conveyance paths connected by the blade. The first pair of conveyance rollers includes a first roller and a second roller. The second roller is closer than the first roller to the third pair of conveyance rollers. A radius of the second roller is larger than a radius of the first roller. A first center holding distance is different from one or both of a second center holding distance and a third center holding distance.

Abstract: A sheet transport device includes a transport guide for guiding, along its transport surface, a sheet in a transport direction, a first transport roller pair, a second transport roller pair, a skew roller pair, a reference wall, and an actuator. The skew roller pair alone transports, in a skewed manner toward an end of the transport surface in a width direction orthogonal to the transport direction, the sheet spaced from the first transport roller and the second transport roller. The reference wall is positioned at the end of the transport surface in the width direction and extends along the transport direction. The actuator is disposed downstream of the skew roller pair and upstream of the second transport roller pair in the transport direction and between the end and a center of the transport surface in the width direction.

Abstract: The invention relates to a recovery device (10) for recovering sample blanks (P) for a processing machine (1) for processing elements in sheet form, the processing machine (1) comprising: a plurality of work stations (300, 400, 500, 600) including at least one waste removal station (600), and a conveying device (70) comprising a plurality of gripper bars (75) configured to drive the elements in sheet form through the work stations (300, 400, 500, 600), the recovery device (10) being characterized in that it comprises: a first removal belt (94), and a second removal belt (95) arranged after the first removal belt (94) in relation to the direction of travel (D) of the sheets, the second removal belt (94) being able to move between: a continuous-conveying position in which first ends (94a, 95a) of the first and second removal belts (94, 95) are close together so that sheet form element waste (F) can be conveyed from the first removal belt (94) to the second removal belt (95), and a raised position in which

Abstract: A sheet conveying device includes a support configured to move between a storage position and a full open position and including a pair of rollers, a plurality of contact bodies, and a switching unit. The switching unit switches the pair of rollers in response to contact of the plurality of contact target bodies included in the switching unit, with the plurality of contact bodies. The plurality of contact bodies includes a first contact body closer to the storage position than the plurality of contact target bodies with the support at the full open position and closer to the full open position with the support at the storage position, and a second contact body closer to the storage position than a part of the plurality of contact target bodies with the support at a halfway position and closer to the full open position with the support at the storage position.

Abstract: 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.