Abstract: A sheet feeder, which is incorporated in an image forming apparatus, includes an endless attraction belt that is rotatably disposed facing a top surface of a sheet stack, a belt charger to attract an uppermost sheet of the sheet stack, and a sheet separator to press the attraction belt against the sheet stack, bend a contact region to which the uppermost sheet is attracted and contacted to the attraction belt, and separate the uppermost sheet from a subsequent sheet or other sheet of the sheet stack. In this configuration, a curvature of a contact surface of the sheet separator with respect to the attraction belt is changeable.
Abstract: A sheet feeder includes: a casing; a first roller; and a pressing portion. The casing defines therein a conveying region through which a sheet is conveyed in a conveying direction. The first roller has a rotation axis extending in an axial direction crossing the conveying direction and rotatable about the rotation axis. The first roller has a portion exposed to the conveying region. The pressing portion is movable in a direction crossing the conveying region between a first position and a second position. The pressing portion is urged toward the first roller to provide the first position. The pressing portion in the first position has a portion disposed within the conveying region and spaced apart from the first roller by a prescribed distance. The pressing portion in the second position is separated from the first roller farther than in the first position.
Abstract: A discharge device which discharges a sheet includes: a driving shaft which is driven to rotate by a driving source; a plurality of driving rotating members which is provided on the driving shaft; a rotating member which is provided on the driving shaft, has a larger outside diameter than an outside diameter of the driving rotating member, is formed by joining at least two divided components, and includes stepped portions that protrude, to a larger extent, in a radial direction in boundary portions of the at least two components on upstream sides of a rotation direction of the rotating member than on downstream sides thereof; and follower rotating members which are pressed against the driving rotating members.
Abstract: An edge detection device that detects an edge position in a width direction orthogonal to a conveying direction of a conveyance object, and includes: a photoelectric converter that is arranged in a conveyance path of the object and includes photoelectric conversion elements aligned along the width direction; a binarizer that binarizes an output from each of the photoelectric conversion elements by threshold comparison; a detector that detects a position of the photoelectric converter at which a binarized value is switched; a storage that stores therein a detection range as a range used for edge detection among the photoelectric conversion elements for each size of the object; and a determiner that reads out the detection range corresponding to the size of the object from the storage and determines a position detected by the detector within the detection range to be an edge position in the width direction of the object.
Abstract: A feed module for feeding value documents, in particular bank notes, to a value-document processing apparatus, has a receiving device in which one or more value documents to be processed can be inserted. The receiving device includes a first aligning element which the value documents lying in the receiving device are aligned to with a first edge of the value documents when the receiving device is in a first state, and a second aligning element which the value documents lying in the receiving device are aligned to with a second edge of the value documents when the receiving device is in a second state. A positioning device through which the receiving device is brought from the first state to the second state.
Abstract: An apparatus is provided that may offer functionalities including printing, scanning and/or copying. The apparatus may include a manual sheet feeding tray disposed at the rear of the apparatus. The height of the sheet feeding tray might not exceed a height of the apparatus, allowing use of the apparatus in spaces having smaller depths. The apparatus may include a sheet guide configured to move in conjunction with the movement of the tray. In some arrangements, a surface of the sheet feeding tray may differ in height between lateral edges of the tray and a central portion. This difference may cause a sheet to be curved in a lateral direction, rendering the sheet more inflexible in a longitudinal direction. According to other aspects, a depressed portion of the tray may match a protrusion extending from the guide in shape such that the two portions may mate in a retracted position.
Abstract: A self-closing device is configured to retract a unit capable of being pulled out with respect to an apparatus main body, to the apparatus main body. The self-closing device includes a plurality of retracting modules configured to retract the unit from a retracting start position towards a retracting end position. The plurality of retracting modules are provided such that retracting strokes from the retracting start position to the retracting end position partially overlap each other and the retracting start positions are different from each other in the retracting direction.
Abstract: A feeding device to feed a conveyed medium stacked on a stacker, includes a first suction unit, a second suction unit, and third suction units. The first suction unit includes a suction chamber; a suction fan to exhaust air from the suction chamber; and a first driver to rotate the suction fan. The suction units are disposed above the conveyed medium stacked on the stacker. The second suction unit includes a rotary fan including a board and a plurality of walls extending from the board; and a second driver to rotate the rotary fan. The second suction unit generates a vortex flow directed to the conveyed medium. The plurality of third suction units is disposed in a direction perpendicular to a conveyance direction of the conveyed medium and attracts ends of the conveyed medium in the direction perpendicular to the conveyance direction.
Abstract: An image recording apparatus, comprising: a recording device; a cassette; a discharge tray; a conveying path; a conveyor; an electrical power supply; a cooling air flow path; an air blower configured to apply a wind-force to air so as to cause the air to flow through the cooling air flow path; and a casing, wherein: the electrical power supply and the cooling air flow path are arranged in a lower region in a vertical direction with respect to the cassette, the conveying path and the recording device; the recording device is located, in regard to the vertical direction, at a position higher than or equal to the cassette; and the electrical power supply and the cassette overlap each other in the vertical direction.
Abstract: An image forming apparatus includes an image forming section, a primary conveyance section, a first diverging section, a sorting ejection section, a secondary conveyance section, and a housing. The first diverging section is located downstream of the image forming section in a paper conveyance direction in the primary conveyance section. The secondary conveyance section diverges from the primary conveyance section at the first diverging section. The sorting ejection section sorts and ejects the paper conveyed thereto by the secondary conveyance section. The housing constitutes an apparatus main body and houses the image forming section, the primary conveyance section, the first diverging section, and part of the secondary conveyance section. One side wall of a plurality of side walls of the housing has an opening. The secondary conveyance section conveys the paper to a proximal end of the sorting ejection section through the opening.
Abstract: A sheet handling apparatus for a printing system includes a rotary drum having an inner chamber circumferentially surrounded by an outer peripheral wall with perforations formed therein. By means of sucking an air flow through the perforations of the drum to a suction system, sheets are attracted to the peripheral wall of the drum. A stationary shutter member is positioned inside the inner chamber for blocking the flow of air through the perforations when they pass, with the rotation of the drum, through a first predetermined angular range. The shutter member includes protrusions while the rotary drum includes recesses for receiving the protrusions, such that a meandering air flow passage is formed between the shutter member and the rotary drum. As such, friction between the rotary drum and the stationary shutter member is reduced, thereby reducing the power consumption of the suction system.
August 25, 2017
Date of Patent:
August 21, 2018
OCÉ HOLDING B.V.
Antonius G. H. Albers, Johannes H. L. Smeyers, Albert M. Van Beek, Marcel J. H. M. Haenen, Wilhelmus H. J. Nellen
Abstract: A sheet tray includes: a first receiving member; a second receiving member including a first holding portion configured to be pushed into and drawn out from the first receiving member and a third receiving member including a second holding portion configured to be pushed into and drawn out from the second receiving member. The first receiving member covers the second and third receiving members in a state of being pushed into. The second receiving member is configured to expose the second holding portion while maintaining a state in which the third receiving member can be drawn out. The first receiving member is configured to expose the second holding portion while maintaining a state in which the third receiving member can be drawn out.
Abstract: A recording medium ejecting device includes ejecting trays, a guiding member and a switching mechanism. The guiding member is switchable between a first posture to permit ejection of a recording medium on one ejecting tray and a second posture to restrict the ejection of the recording medium on the one ejecting tray. The switching mechanism switches the guiding member between the first posture and the second posture. The switching mechanism includes pulleys, a driving belt and a pressing member. The driving belt is wound around the pulleys. The pressing member presses the guiding member. The driving belt includes a contactable area configured to be contactable with each of the pulleys and a contact restricted area whose contact with each of the pulleys is restricted. The pressing member catches the contact restricted area from both an outer face side and an inner face side.
Abstract: A sheet conveyance apparatus according to an embodiment includes a conveyance roller and a register roller arranged downstream of the conveyance roller along a sheet conveyance path. A sensor unit detects a first deflection amount of the sheet and a second deflection amount of the sheet when the sheet is pressed against the register roller. A movable section is connected to at least one end of the conveyance roller. A control section determines a tilt of a rotation axis of the conveyance roller relative to a rotation axis of the register roller based on a difference in the first and second deflection amounts detected by the sensor unit. The control section controls the movable section to move the conveyance roller so that the rotational axis of the conveyance roller is positioned relative to a rotational axis of the register roller in accordance with the determined tilt.
Abstract: A device for conveying and transferring flexible, flat objects with a gripper conveyor including a plurality of grippers that are movable along a conveying path in a conveying direction, and further with a conveying-way device that forms a conveying rest that, in a transfer region, is arranged below the conveying path such that objects that are released from grippers in the transfer region are deposited onto the conveying rest. The device includes a pressing circulatory device that acts upon the transfer region and has a plurality of outwardly directed pressing arms. The pressing circulatory device is designed, in the transfer region, to press the objects to be transferred with the pressing arms onto the conveying rest such that the objects can be deposited onto the conveying rest in a guided and controlled manner.
Abstract: A printing apparatus comprises a print zone and a media handling system for advancing media through a media path and through the print zone, wherein the media handling system comprises a first media driving arrangement positioned downstream of the print zone in the direction of advance of the media, and a second media driving arrangement positioned downstream of the first arrangement, the second media driving arrangement being operable to cause the tension of the media in a deformation zone between the two driving arrangements to be lower than the tension of the media in the print zone.
January 25, 2013
Date of Patent:
August 7, 2018
Hewlett-Packard Development Company, L.P.
Abstract: A paper sheet conveyance device for generating an airstream in a conveyance duct and for conveying a paper sheet inserted into the conveyance duct by being pushed from behind by a conveyance subsidiary body moving in the conveyance duct by receiving the airstream. The paper sheet conveyance device includes an air volume adjustment unit that adjusts a strength of the airstream according to a position of the conveyance subsidiary body moving in the conveyance path.
Abstract: A sheet conveyance apparatus includes a rotation unit including a shaft portion and configured to rotate by being pushed by a sheet conveyed, a sensor configured to generate a signal according to a position of the rotation unit in a rotational direction, a first supporting portion configured to rotatably support the shaft portion, a second supporting portion configured to rotatably support the shaft portion, an elastic portion connected to the shaft portion, and configured to extend in an axial direction of the shaft portion, and be elastically deformable in a direction intersecting with the axial direction of the shaft portion, a regulation portion configured to regulate a movement of the rotation unit supported by the first supporting portion and the second supporting portion in the axial direction of the shaft portion by contacting the elastic portion.
Abstract: A sheet storage device has a rotation restriction portion configured to restrict a rotation of an end cursor from a first posture to a second posture. The rotation restriction portion has: a restriction piece situated on the end cursor and configured to be brought into contact with a guide rail so as to restrict the rotation of the end cursor from the first posture to the second posture; and an engagement recess formed at a given position of the guide rail, the restriction piece being fitted in the engagement recess. The end cursor is allowed to rotate from the first posture to the second posture when the restriction piece is fitted in the engagement recess at the given position of the guide rail.
Abstract: A conveyor comprises a first conveyor roller unit and a side position adjustment mechanism. The side position adjustment mechanism includes a guide member and a position adjustment roller unit. The position adjustment roller unit includes a first position adjustment roller and a second position adjustment roller which holds a sheet-shaped medium with the first position adjustment roller. An angle between a rotational axial line of the first position adjustment roller and a part of a guide face of the guide member which part is on the downstream of an intersection between the rotational axial line of the first position adjustment roller and the guide face is an acute angle. The conveyor further comprises a first support member which supports a first driven roller of the first conveyor roller unit to allow a rotational axial line of the first driven roller to be swingable.