On Peripheral Face Of Drum Or Belt Patents (Class 271/275)
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Patent number: 7722037Abstract: A sheet material conveyer system includes a sheet-transfer conveyer having an endless sheet-transfer belt for conveying sheet materials, a heater provided below the elevation of the endless sheet-transfer belt for heating the sheet materials being carried on the endless sheet-transfer belt to a dry state, an impression belt assembly having an endless impression belt disposed above the endless sheet-transfer belt for guiding movement of the sheet materials with the endless sheet-transfer belt, and tension supports insertable into a conveying space between the endless sheet-transfer belt and the endless impression belt from two opposite lateral sides to support the endless impression belt in shape and to control the tension of the endless impression belt.Type: GrantFiled: December 26, 2007Date of Patent: May 25, 2010Inventor: Tzu-Che Lin
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Publication number: 20100118094Abstract: A device for printing two-dimensional parts, particularly plastic substrates, preferably plastic cards, having a depot comprising the parts to be imprinted, a printing station with a printing device, and a transport device for transporting the parts through the printing station, characterized in that aligning means serving the alignment of the parts on the transport device are provided in front of the printing station.Type: ApplicationFiled: October 25, 2007Publication date: May 13, 2010Inventor: Kurt Greinwald
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Patent number: 7703769Abstract: A device for separating overlapping, flat items of mail in an upright position in a transport path has separating sections arranged in the transport path and having transport belts. A stationary retaining strip running over a length of all separating sections is attached on the transport path on a side opposite the transport belt and operates on the mail items with friction force. Pressure elements for pressing the retaining strip onto transported mail items are distributed over a length of the retaining strip. Each pressure element comprises a coupling lever, pressure rollers and an elastic belt loop. The belt loop is attached a back of the retaining strip, and guided via the pressure rollers on ends of the coupling lever running in longitudinal direction of the retaining strip. The coupling lever is displaceably supported on a pivot axis.Type: GrantFiled: January 27, 2006Date of Patent: April 27, 2010Assignee: Siemens AktiengesellschaftInventor: Michael Schwarzbauer
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Patent number: 7694965Abstract: A first position of a media is determined with respect to a surface. The surface is advanced and a second position of the media is determined with respect to the surface. The relative speed between the surface and a linear speed feed of the media is altered based on the first and second positions.Type: GrantFiled: February 28, 2007Date of Patent: April 13, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Victor Bruhn, Angela Krauskopf, Beverly Loh, Jon Johnson
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Patent number: 7682016Abstract: An image-forming apparatus includes an endless conveyor belt, a counter roller, and a clutch part. The endless conveyor belt is rotatable to convey paper with a surface of the conveyor belt being charged. The counter roller holds the paper between the conveyor belt and the counter roller and conveys the paper. The clutch part is caused to slip by the difference in velocity between the conveyor belt and the counter roller. The counter roller is driven through the clutch part.Type: GrantFiled: November 14, 2003Date of Patent: March 23, 2010Assignee: Ricoh Company, Ltd.Inventors: Hideomi Sakuma, Shinji Imoto, Yohichi Itoh, Hiroshi Yasuda, Akira Ishii
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Patent number: 7661675Abstract: The present invention provides an automatic document feeder comprising a pick up roller module, a drive roller module, an ejecting idle roller module and a main belt. A main driving roller of the driving roller module drives the main belt to transport the document, and the main belt encircles the main driving roller and a first ejecting idle roller of the ejecting idle roller module.Type: GrantFiled: May 14, 2007Date of Patent: February 16, 2010Assignee: Primax Electronics Ltd.Inventors: Chia-Tsui Lan, Ching-Tse Wang, Teng-Kuang Lee
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Patent number: 7661811Abstract: An ink jet printer for discharging ink drips to a printing medium mounted on a conveying belt and conveyed from a plurality of nozzles, in which the printing quality is improved and the printed speed is raised. A printing medium conveying section has first and second conveying portions connected in the conveying direction of the printing medium and a plurality of conveying belts are arranged by mutually keeping a predetermined interval, in which the conveying belts of the first and second conveying portions are set so that an other-hand conveying belt is located between one-hand conveying belts, and a printing head is constituted of first head set to a position facing the gap between the conveying belts of the first conveying portion and a second head set to a position facing the gap between the conveying belts of the second conveying portion.Type: GrantFiled: November 21, 2007Date of Patent: February 16, 2010Assignee: Seiko Epson CorporationInventor: Kaneo Yoda
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Patent number: 7641194Abstract: A drum for conveying a sheet has a cohesive sheet-guiding surface provided at little effort or cost and includes a drum body, a jacket forming a circumferential surface and a device for fixing the jacket onto the drum body. The jacket is located above a gap formed in the drum body so as to extend parallel to a longitudinal axis. The device for fixing the jacket includes at least one tensioning body that acts on the jacket in the region of the gap and is adjustable in radial direction.Type: GrantFiled: October 22, 2007Date of Patent: January 5, 2010Assignee: Heidelberger Druckmaschinen AGInventors: Daniel Draxler, Georg Grasmück, Burkhard Wolf
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Patent number: 7628400Abstract: A conveying apparatus includes a conveyor roller, an angular velocity detection device, and a rotation angle calculation device. The conveyor roller conveys a conveyance object by a rotation thereof. The angular velocity detection device is provided to one of the conveyor roller and a rotating portion rotating with the conveyor roller such that an angular velocity detection axis is parallel with a rotation shaft of the conveyor roller. The rotation angle calculation device calculates a rotation angle of the conveyor roller based on an angular velocity detected by the angular velocity detection device.Type: GrantFiled: August 30, 2006Date of Patent: December 8, 2009Assignee: Brother Kogyo Kabushiki KaishaInventor: Kan Ishikawa
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Patent number: 7597321Abstract: An image forming apparatus has a chassis, a feed roller rotatably supported by the chassis, a feed roller gear relatively unrotatably coupled to the feed roller, a motor that drives the feed roller, a drive gear that receives driving force from the motor, and an intermediate gear having a gear portion that engages the drive gear and the feed roller gear and an axle portion that is rotatably supported to the chassis via intermediate gear bearings. At least one of the intermediate gear bearings includes a substantially circular inner surface and a stepped portion that is depressed from the circular inner surface. The axle portion of the intermediate gear is supported by the stepped portion while the intermediate gear transmits driving force the motor from the drive gear to the feed roller gear during printing.Type: GrantFiled: October 5, 2005Date of Patent: October 6, 2009Assignee: Funai Electric Co., Ltd.Inventor: Kunio Sawai
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Patent number: 7594658Abstract: A device for conveying a sheet through a typographic or printing technology machine reliably transfers a sheet from a cylinder to a trailing-edge gripper system and includes a chain conveyor, grippers for holding and taking over the leading margin of the sheet from a cylinder and grippers fixed to endless chains for holding the trailing, rear margin of the sheet. When the grippers for the trailing margin pass the cylinder, the grippers are guided in a closed state along a path outside a revolution contour of a support surface and, having passed the cylinder, the grippers are guided in an open state along a path to a radial level of the rear margin held in auxiliary grippers.Type: GrantFiled: November 21, 2007Date of Patent: September 29, 2009Assignee: Heidelberger Druckmaschinen AGInventors: Stephan Mutschall, Andreas Detloff, Paul Nicola
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Patent number: 7594657Abstract: Various embodiments and methods relating to a guide for pressing a medium towards a surface of a drum and for retracting the guide away from the surface are disclosed.Type: GrantFiled: January 31, 2007Date of Patent: September 29, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Robert M. Yraceburu, Bryan F. Bihimaier, Stephen J. McNally, Jason S. Belbey
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Patent number: 7594654Abstract: A sheet conveyor includes a conveyor belt that conveys a sheet material while holding the sheet material by attraction with an electric force, and a platen that slidably supports a bottom surface of the conveyor belt so as to maintain flatness of a predetermined region of the conveyor belt. In response to the electric force, an attractive force for attracting the conveyor belt to the platen is generated. The platen is shaped such that a surface of the platen that is in contact with the conveyor belt has a width that increases gradually from an upstream side of the platen towards a downstream side thereof in a conveying direction of the conveyor belt.Type: GrantFiled: May 4, 2006Date of Patent: September 29, 2009Assignee: Canon Kabushiki KaishaInventor: Tadashi Matsumoto
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Publication number: 20090236800Abstract: A media feedpath having a feed assist roller, comprises a media feedpath having a C-shaped portion, a media input and a feed roll nip, an input roller feeding media from the media input, a feed assist roller downstream of the C-shaped portion of the media feedpath, the feed assist roller assisting media indexing through the media feedpath on a single side and without an opposed pinch roller, the feed roll nip having a driven roller and a feed roll pinch roll opposite the driven roll, the feed assist roller being driven by a toggle gear transmission from the driven roller of the feed roll nip, the gear train adapted for toggling to operably engage or disengage the feed assist roller depending on a driving direction of the driven roller of the feed roll nip.Type: ApplicationFiled: March 20, 2008Publication date: September 24, 2009Inventors: Patrick A. Buxton, Kevin M. Johnson, Michael W. Lawrence
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Patent number: 7591458Abstract: A sheet conveyance apparatus can convey a recording paper (12) in a stable condition irrespective of a kind of the material of the recording paper (12). The sheet conveyance apparatus conveys a recording sheet (12) by attaching the recording paper (12) onto an endless conveyance belt (21) by applying electric charges onto a surface of the conveyance belt (21). A charger (26, 83) charges the surface of the conveyance belt (21) in a belt-like alternate voltage pattern (91). A control part (73) controls a charge width (L) of the alternate voltage pattern (91) in a direction of conveyance of the recording paper (12).Type: GrantFiled: January 23, 2004Date of Patent: September 22, 2009Assignee: Ricoh Company, Ltd.Inventor: Tsuneo Maki
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Publication number: 20090212496Abstract: A feeding paper apparatus includes a rod having a fulcrum member thereon, and two pressing unit disposed on the opposite ends of the rod. Each pressing unit has a connecting device disposed on the rod, a buffering device movably and pivotally disposed on the connecting device, and a pressing wheel rotatably disposed on the buffering device. The pressing wheels provide the same component force on the corresponding feeding paper wheel so as to improve the quality of feeding paper. Furthermore, a method for using the feeding paper apparatus is disclosed.Type: ApplicationFiled: May 16, 2008Publication date: August 27, 2009Inventor: Chih-Hwa Wang
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Patent number: 7575317Abstract: An ink jet printer for discharging ink drips to a printing medium mounted on a conveying belt and conveyed from a plurality of nozzles, in which the printing quality is improved and the printed speed is raised. A printing medium conveying section has first and second conveying portions connected in the conveying direction of the printing medium and a plurality of conveying belts are arranged by mutually keeping a predetermined interval, in which the conveying belts of the first and second conveying portions are set so that an other-hand conveying belt is located between one-hand conveying belts, and a printing head is constituted of first head set to a position facing the gap between the conveying belts of the first conveying portion and a second head set to a position facing the gap between the conveying belts of the second conveying portion.Type: GrantFiled: November 21, 2007Date of Patent: August 18, 2009Assignee: Seiko Epson CorporationInventor: Kaneo Yoda
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Patent number: 7559642Abstract: A sheet material conveying apparatus for conveying a sheet material under attraction to a conveying belt has an attraction unit for attracting the sheet material to the conveying belt, and which exerts a attraction in succession from a front end to a rear end of the sheet material in a conveying direction thereof and from a position in the front end toward both ends in the direction of width, or in succession from an end at either side in the direction of width of the sheet material and a front end in the conveying direction thereof toward a rear end thereof, and from the either end toward an end at the other side.Type: GrantFiled: December 6, 2005Date of Patent: July 14, 2009Assignee: Canon Kabushiki KaishaInventor: Yoshihiro Shigemura
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Publication number: 20090166967Abstract: A sheet material conveyer system includes a sheet-transfer conveyer having an endless sheet-transfer belt for conveying sheet materials, a heater provided below the elevation of the endless sheet-transfer belt for heating the sheet materials being carried on the endless sheet-transfer belt to a dry state, an impression belt assembly having an endless impression belt disposed above the endless sheet-transfer belt for guiding movement of the sheet materials with the endless sheet-transfer belt, and tension supports insertable into a conveying space between the endless sheet-transfer belt and the endless impression belt from two opposite lateral sides to support the endless impression belt in shape and to control the tension of the endless impression belt.Type: ApplicationFiled: December 26, 2007Publication date: July 2, 2009Inventor: Tzu-Che Lin
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Patent number: 7549635Abstract: A paper conveyance apparatus includes an endless type conveyance belt, a driving unit, first and second rollers, a first biasing mechanism and an encoder. The endless type conveyance belt has first and second surfaces. The driving unit drives the conveyance belt. The first roller is in contact with the first surface. The second roller is in contact with the second surface. The first and second rollers nip the conveyance belt therebetween. The first biasing mechanism biases at least one of the first and second rollers so that the first and second rollers come close to each other. The encoder detects a rotation position of the first roller. At least one of the first and second rollers is in contact with at least one of the first and second surfaces in a region outside a paper passing region where a conveyed sheet of paper passes.Type: GrantFiled: November 4, 2005Date of Patent: June 23, 2009Assignee: Brother Kogyo Kabushiki KaishaInventor: Atsuhisa Nakashima
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Publication number: 20090152809Abstract: A transport apparatus for flat materials which are to be printed has a number of spacer pieces which lie axially parallel with respect to one another and are disposed at two ends of a bearing plate of a roller carrier between a first and a second shaped part plate. The bearing plate is equipped with a pull rod for the defined deflection of the roller carrier with corresponding loading of the bearing plate by a mechanical tensile stress which is exerted by the pull rod, and is also equipped with a stressing and setting device, by way of which the tensile stress can be set, which is transmitted through stressing device to the two ends of the bearing plate.Type: ApplicationFiled: December 17, 2008Publication date: June 18, 2009Applicant: FRANCOTYP-POSTALIA GMBHInventor: Wolfgang Muhl
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Publication number: 20090152808Abstract: Sheets are conveyed through a printing or coating machine having at least one gripping assembly for gripping and holding a leading edge of a sheet to be transported and lying in at least one recess of the cylindrical transport drum and rotating with the cylindrical transport drum about its rotation axis. This grab and the respective support of the gripping assembly are moved by a drive provided in or on the cylindrical transport drum during a predetermined or predeterminable angular travel of the cylindrical transport drum along a straight path tangentially to an outer surface of the cylindrical transport drum.Type: ApplicationFiled: December 10, 2008Publication date: June 18, 2009Inventor: Rainer WIELAND
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Patent number: 7547100Abstract: A transfer belt (10) has a two-layer structure consisting of two inner belts (31) formed of metal, such as stainless steel, and an outer belt (32) formed of an elastic material, such as silicone rubber, being spread across the inner belts (31). The inner belts (31) are endless and wound around transfer rollers (12), while the outer belt (32) has its ends which are not joined with each other and form an opening (20) therebetween. Distortion of the outer belt (32) due to stress is designed to be suppressed by using a reinforcing member around the opening (20).Type: GrantFiled: June 18, 2007Date of Patent: June 16, 2009Assignee: Brother Kogyo Kabushiki KaishaInventor: Atsuhisa Nakashima
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Publication number: 20090127777Abstract: A sheet feed mechanism of a printer includes a sheet feed roller arranged so as to be rotatable about an axis in a direction orthogonal to a sheet conveying direction in plan view such that its apex is made to face a sheet conveying path on the downstream side in the sheet conveying direction, a sheet pressure-contact member arranged to be capable of pressing a sheet against the sheet feed roller, and a sheet trailing end guide portion having a guide surface which gradually guides a trailing end of the sheet released from abutment on the sheet feed roller toward the downstream in the sheet conveying direction.Type: ApplicationFiled: November 12, 2008Publication date: May 21, 2009Applicant: ALPS ELECTRIC CO., LTD.Inventor: Toshiyuki YAMAMOTO
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Publication number: 20090121423Abstract: An image forming apparatus includes an image forming device forming an image on a recording medium wound into a roll, and a roll sheet conveyance device unwinding and conveying the medium to the image forming device. The roll sheet conveyance device includes a roll sheet feed device, a torsion detector, and a control device. The roll sheet feed device includes a drive device including upstream and downstream shafts in a drive transmission direction to rotate the medium, and a feed device to feed the medium. The detection device includes a torsion coil spring provided between the upstream and downstream shafts, and a pair of an encoder and an encoder sensor detecting the torsion amount at the opposite ends of the torsion coil spring. The control device controls the torsion amount on the basis of a signal from the detection device, and applies a given back tension to the medium.Type: ApplicationFiled: November 14, 2008Publication date: May 14, 2009Inventors: Kei Nakamura, Nobuyuki Satoh
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Patent number: 7530569Abstract: An interfolding machine includes a rotating roll with a series of ports configured to apply a vacuum pressure for holding and releasing sheet or web material. The interfolding machine further includes a valve assembly to regulate the vacuum pressure communicated to a surface of the rotating roll for holding the sheet or web material. The valve assembly generally includes an outer slug and an inner slug coupled by a pilot ring. A spool is mounted to the inner slug. The spool includes an opening to receive a draw of fluid through the outer and inner slugs. A cover defines a cavity with the spool in communication with the opening to the spool and a port in the cover. The outer slug and the inner slug define an intake region through which suction is supplied to the roll ports during a portion of the rotation of the roll. The outer slug and the inner slug are rotatably adjustable relative to the spool and to one another to regulate the length and position of the intake region.Type: GrantFiled: October 15, 2004Date of Patent: May 12, 2009Assignee: Fabio Perini S.p.A.Inventor: Barton J. White
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Publication number: 20090115128Abstract: An automatic document feeder includes a main body defining a passage for transporting a document. A feeding roller unit includes a feeding driving roller and a feeding idle roller coupling with the feeding driving roller. The feeding driving roller and the feeding idle roller are disposed at opposite sides of the passage. A drawing-out roller unit includes a drawing-out driving roller and a drawing-out idle roller coupling with the drawing-out driving roller. The drawing-out driving roller and the drawing-out idle roller are disposed at opposite sides of the passage. The drawing-out driving roller and the feeding driving roller are at the same side of the passage. And a belt is put around the feeding driving roller and the drawing-out driving roller to mate with the feeding idle roller and the drawing-out idle roller respectively for flatting and conveying the document into and out of the automatic document feeder.Type: ApplicationFiled: November 6, 2007Publication date: May 7, 2009Applicant: FOXLINK IMAGE TECHNOLOGY CO., LTD.Inventors: Te-Yu Chu, Yueh-Shing Lee, Wen-Sheng Liu
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Publication number: 20090108523Abstract: A method and apparatus for controlling transfer of paper. In order to align the leading end of a sheet of paper, when the sheet arrives at a predetermined position in an image forming apparatus, a registration unit is stopped from operating and a driving unit that transfers the sheet from an auxiliary paper-feeding unit is also stopped from operating so that bending and crumpling of the sheet can be minimized.Type: ApplicationFiled: October 16, 2008Publication date: April 30, 2009Applicant: Samsung Electronics Co., Ltd.Inventor: Hyun-soo SONG
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Patent number: 7523933Abstract: An adjustable force driving nip assembly for use in a sheet transport system of a document creating apparatus has a plurality of adjustable force driving nips aligned and spaced transversely across the sheet travelling path of the sheet transport system. Each driving nip has a spring biased idler roller mounted on a cam follower and mated with a driven roller. The spring bias produces a normal force for the idler roller that urges the idler roller against the driven roller. A stepper motor is adapted to interact concurrently with the cam followers and, upon actuation, vary the force of the spring thus adjusting the normal force of the idler rollers. A controller actuates the stepper motor in response to sheet media data entered into a control panel of the document creating apparatus by an end user, thereby automatically adjusting the normal force of the idler rollers to prevent sheet marking.Type: GrantFiled: August 17, 2006Date of Patent: April 28, 2009Assignee: Xerox CorporationInventors: Michael J. Linder, Wayne C. Powley, Matthew R. McLaughlin
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Patent number: 7503562Abstract: In a bank note processing machine bank notes 100 are led through between two components of a checking device with the help of a conveyor belt. The conveyor belt is led away from the transport path and around the checking device with the help of deflection rollers. Coaxially to the deflection rollers are disposed clamping rings or clamping rollers, which grasp the sheet material and guide it through the checking device. This operation is supported by a guide plate, which combs with the clamping rings.Type: GrantFiled: September 6, 2004Date of Patent: March 17, 2009Assignee: Giesecke & Devrient GmbHInventor: Markus Haberstroh
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Patent number: 7497437Abstract: A sheet guide apparatus includes a transfer cylinder, delivery chains, and sheet guide structure. The transfer cylinder holds a sheet. The delivery chains hold the sheet received from the transfer cylinder and conveys the sheet along a first convey path which is at least substantially arcuate. The sheet guide structure guides the sheet conveyed by the delivery chains. The sheet guide structure includes a movable guide member and stationary guide member. The movable guide member is movable between positions close to and spaced apart from the first convey path. The stationary guide member is stationarily arranged at a position spaced apart from the first convey path. When the movable guide member is close to the first convey path, a thin-sheet guide surface having a continuous substantially arcuate section is formed by only the movable guide member.Type: GrantFiled: December 19, 2005Date of Patent: March 3, 2009Assignee: Komori CorporationInventors: Hayato Kondo, Takeshi Asai
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Patent number: 7481429Abstract: A method for cyclically conveying sheets through a printing-technological machine adjusts a sheet position with high accuracy. The sheets following one another are in each case held at the front edge in grippers of a gripper system during the conveyance, and wherein the sheet position is adjusted in that a pneumatic apparatus is actuated by a control device which processes signals from at least one fixed-location sensor for the sheet position, as at least one sheet runs past, a large number of measured position values of the sheet are determined successively by using at least one sensor, from the measured position values a characteristic value for the sheet position being determined in the control device, the characteristic value as actual value being compared with a setpoint, and the pneumatic apparatus being set for a following sheet as a function of the comparison in each case between the actual and intended value of the preceding sheet.Type: GrantFiled: December 21, 2005Date of Patent: January 27, 2009Assignee: Heidelberger Druckmaschinen AGInventors: Thorsten Eckart, Michael Füner, Peter Hachmann, Karl-Heinz Helmstädter, Andreas Detloff
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Patent number: 7478810Abstract: In a rotary feeder for conveying enclosures, in particular into conveying compartments of an enclosure-collating path, during operation, shocks within the gear mechanism of the drive unit of the feeder drum on account of gear mechanism play are avoided and the level of noise during operation is reduced in that a cam-actuated pair of claws (10, 11) is provided in each case at two diametrically opposite locations of the feeder drum (2) of the rotary feeder, and the cam (16) for actuating the pairs of claws is configured in sections (O) with an increasing in the radial spacing of its profile in accordance with a claw-opening movement counter to the prestressing force of prestressing means (19, 20) and, in sections (C) with a decrease in the radial spacing of its profile in accordance with a claw-closing movement under the prestressing force of the prestressing means, such that a braking moment on account of the claw opening counter to the prestressing force of the prestressing means, this braking moment being trType: GrantFiled: June 20, 2005Date of Patent: January 20, 2009Assignee: Pitney Bowes Deutschland GmbHInventors: Martin Sting, Christian Botschek, Rainer Oberheim
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Publication number: 20090014940Abstract: A paper supply device and an image forming apparatus, capable of always maintaining a constant pickup force regardless of the amount of loaded sheets of paper. The paper supply device includes a paper supply cassette, a pickup unit to pick up the paper, a paper supply plate and a press spring to bias the paper toward the pickup unit, a first restraining device to restrain the paper supply plate and to release the restraint of the paper supply plate, a second restraining device to permit the pickup unit to move vertically when the pickup unit picks up the paper and restricts the vertical movement of the pickup unit when the pickup unit does not pick up the paper, and an elastic member to bias the pickup unit toward the paper to provide the pickup unit with a pickup force when the pickup unit picks up the paper.Type: ApplicationFiled: March 26, 2008Publication date: January 15, 2009Applicant: Samsung Electronics Co., Ltd.Inventor: Kwang Taek LIM
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Patent number: 7464923Abstract: An improved device and method for providing increased latitude of paper handling tires includes at least three elastomeric materials mounted on a shaft and divided into three or more torus-shaped sections of varied width. Combinations of EPDM, Silicone and Isoprene are examples of materials that can be used to make the paper handling tires.Type: GrantFiled: May 5, 2006Date of Patent: December 16, 2008Assignee: Xerox CorporationInventors: Gary A. Faguy, John F. Lombardo, Salvatore J. Provvidenza
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Patent number: 7448625Abstract: Sheets are conveyed through a printing machine with improved reliability of the suction grippers. The apparatus for conveying a sheet through a printing machine has a cylinder with grippers in a channel for holding the sheet at its leading edge, circulating grippers for holding and for transferring the sheet from the cylinder at its leading edge, and circulating, radially positionable suction grippers for holding the sheet at its trailing edge. An actuating apparatus opens and closes the grippers and controls vacuum for the suction grippers. A drive for the cylinder and circulating grippers and suction grippers. A control device switches on and off the sheet feed to the cylinder. The suction grippers can be moved in the radial direction into a rest position when the sheet feed is switched off.Type: GrantFiled: August 30, 2005Date of Patent: November 11, 2008Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Daniel Gronych, Markus Möhringer, Paul Nicola, Marius Stelter, Ralf Wadlinger
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Publication number: 20080272536Abstract: A paper feeding device includes: a reference guide surface that contacts a lateral end portion of a sheet-shaped medium along a guide path for transporting the medium; a tapered guide surface that is inclined outward from the reference guide surface toward an upstream side of a transport direction and contacts the lateral end portion of the medium; a paper feeding roller that rotates to transport the medium in a direction parallel to the reference guide surface while the paper feeding roller contacts a surface of the medium; and a medium cassette that stores the medium. The medium cassette stores the medium so as to be inclined with respect to the reference guide surface so that a rear end of the lateral end portion of the stored medium at a side of the reference guide surface is positioned outside an imaginary extension surface of the reference guide surface.Type: ApplicationFiled: December 18, 2007Publication date: November 6, 2008Applicant: Seiko Epson CorporationInventors: Nobuhiro Inoue, Hiroyuki Takahashi
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Publication number: 20080232880Abstract: A sheet conveying device includes a pair of upstream rollers and a pair of downstream rollers each including a drive roller and a driven roller, a calculating unit, and a control unit. The upstream rollers include a measuring unit that obtains speed information of the upstream rollers. The calculating unit calculates a target value based on the speed information. The control unit controls the speed of the drive roller of the downstream rollers based on the target value.Type: ApplicationFiled: March 21, 2008Publication date: September 25, 2008Inventors: Hidetaka Noguchi, Toshiyuki Andoh, Seiji Hoshino, Takashi Hodoshima, Tatsuhiko Oikawa, Hiromichi Matsuda, Makoto Komatsu, Takashi Hashimoto
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Publication number: 20080211171Abstract: A sheet conveying device, that can be included in an image forming apparatus, includes a first conveying unit to convey a sheet in a first sheet conveying direction, a second conveying unit including a sheet holding section to hold and transfer the sheet in a second sheet conveying direction, a sheet conveying path provided between the first conveying unit and the second conveying unit, a belt-type sheet conveying unit including a belt and first and second rotary belt holding members, a shaft holding member to hold the first and second rotary belt holding members to be spaced at a given constant interval, and a regulation member to regulate a movement of the belt in the sheet width direction.Type: ApplicationFiled: February 28, 2008Publication date: September 4, 2008Inventor: Tadashi Kusumi
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Patent number: 7416184Abstract: A paper or sheet buffering system is provided which avoids having to shut down the entire system when the paper path or transport is overloaded. A rotating disk having an attached collection and dispensing finger(s) is used to pull excess sheets off the transport and hold them until it is suitable to dispense them back on to the transport.Type: GrantFiled: March 9, 2006Date of Patent: August 26, 2008Assignee: Xerox CorporationInventor: Joseph J. Ferrara
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Patent number: 7413189Abstract: An ATM includes a currency note dispenser having a currency cassette, a note picker, a note transporter, and a note presenter. A cassette tambour door automatically opens during insertion of the cassette into the dispenser. The picker can pick notes through the opening. A spring loaded housing wall tab retains the picker shaft in mating connection with a drive pin. The transporter can move notes vertically and horizontally. The transporter includes belts between an idle shaft and a drive shaft. The idle shaft is vertically movable relative to a drive shaft to maintain belt tension. The transporter also includes convexly tapered rollers that automatically recenter a loose belt. A presenter gate is at a note dispensing outlet of the ATM. The gate is opened by actuating a lever linked with an arm connected to the gate. The gate opens by moving a pin upward in an angled slot.Type: GrantFiled: March 9, 2004Date of Patent: August 19, 2008Assignee: Diebold Self-Service Systems division of Diebold, IncorporatedInventors: H. Thomas Graef, Damon J. Blackford, Michael S. Johnson, Kenneth Kontor, Thomas A. VanKirk
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Publication number: 20080185776Abstract: [Object] To provide a clutch apparatus that can smoothly switch from a clutch engaged state to a clutch non-engaged state, while tooth jump does not occur even with a small-sized clutch apparatus. [Solving Means] A recessed portion 153 is provided in a cam face of a cam 45. A cam shaft 13 is configured to pivot by a predetermined amount as a cam follower 51 is fitted in the recessed portion, and, when the cam initiates to engage the cam follower, it enters a clutch engaged state. A driven side gear 99 is pivoted by a predetermined amount as the cam follower is fitted in the recessed portion and, thereby, a clutch member 93 is rotated by a predetermined amount in a direction in which a toothed portion 94 is spaced apart from a drive side gear 92.Type: ApplicationFiled: August 3, 2007Publication date: August 7, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Tokujiro OKUNO, Hiroyuki TAJIMA, Kiyotaka NAKAMURA
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Publication number: 20080185775Abstract: [Object] To provide a clutch apparatus that is able to prevent a trigger lever from returning before a toothed portion of a clutch member engages a ratchet wheel and may be reduced in size. [Solving Means] A clutch member 93, a lever member 115 that switches from a clutch engaged state to a non-engaged state and a lever pivot gear 111 are provided. An engaging projecting portion 100 is partially formed on the lever pivot gear in a circumferential direction. An engaged projecting portion 129 that is engageable with the engaging projecting portion is partially formed around the lever shaft in a circumferential direction.Type: ApplicationFiled: August 3, 2007Publication date: August 7, 2008Applicant: SEIKO EPSON CORPORATIONInventor: Tokujiro OKUNO
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Patent number: 7396123Abstract: A recording apparatus includes a recording unit for recoding on a recording medium by ejecting ink, a conveyor belt for transporting the medium, first and second electrode groups including a plurality of electrodes inside the conveyor belt, a charging unit for charging the first and second electrode groups to provide a potential difference between the first and second electrode groups in order to generate an electrostatic force for attracting the medium to the conveyor belt, a duplex transport unit for turning over the medium transported by the conveyor belt from a first surface upward to a second surface upward and delivering the medium to the conveyor belt with the second surface upward, and a control unit for controlling the charging unit so that a difference between the potentials of the first and second electrode groups during transportation of the medium with the second surface upward is different from that during transportation of the medium with the first surface upward.Type: GrantFiled: June 2, 2005Date of Patent: July 8, 2008Assignee: Canon Kabushiki KaishaInventors: Sumitoshi Sootome, Tadashi Matsumoto
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Publication number: 20080122168Abstract: In an image forming apparatus, a toner image formed on an intermediate transfer belt is transferred to a transfer sheet by a transfer electric field generated between a secondary transfer roller and a driving roller. A guide surface of a pre-transfer guide and a flat portion of the intermediate transfer belt form an angle of no less than 13° and no greater than 17°, and a distance from a tip of the guide surface and the flat portion is no less than 1.0 mm and no greater than 3.0 mm.Type: ApplicationFiled: November 29, 2007Publication date: May 29, 2008Applicant: Konica Minolta Business Technologies, Inc.Inventors: Hideji Higashimura, Yusuke Ukai, Katsumi Shirai
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Publication number: 20080054555Abstract: A pair of registration rollers are provided upstream in a paper transport path from an image forming position, and a paper transport position detection portion is provided upstream in the paper transport path from the pair of registration rollers. When consecutive print processing on a plurality of sheets of paper is performed, a paper transport position in the paper transport path is detected by the paper transport position detection portion for a sheet of paper that has been set in advance among the plurality of sheets of paper. A correction amount of a position for image writing to a photosensitive drum is determined based on the paper transport position, and correction of the image writing position is performed based on the correction amount.Type: ApplicationFiled: August 28, 2007Publication date: March 6, 2008Inventors: Hidetoshi Atsumi, Junko Yabuta, Tatsuya Inoue, Yoshiharu Yoneda, Shinji Nakazawa, Shuhji Fujii, Atsushi Ogo, Fuminori Miyoshi
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Patent number: 7334858Abstract: An image forming apparatus can form a high-quality image while acquiring a stable conveyance performance. A conveyance belt (21) conveys a recording medium (12) by attracting the recording medium (12) by an electrostatic force. A recording head (7) discharges liquid droplets toward the recording medium (12) being conveyed by the conveyance belt (21). Alternating positive and negative electric charges are applied onto the conveyance belt (21). A conveyance speed is controlled in accordance with a charge period length of the alternating positive and negative electric charges applied onto the conveyance belt (21).Type: GrantFiled: April 22, 2005Date of Patent: February 26, 2008Assignee: Ricoh Company, Ltd.Inventors: Seiichi Kogure, Shinji Imoto
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Patent number: 7334790Abstract: Sheets are conveyed through a rotary press with linear travel grippers. The novel conveying apparatus prevents collisions between the grippers and printing unit cylinders. The grippers are fixed to circulating links to convey a sheet through a nip between two cylinders that interact during printing. The links and the cylinders are coupled to drives that can be activated separately. In each case a collision disk is mounted on a shaft journal of at least one cylinder. A slip clutch is provided between the collision disk and the cylinder. A braking element is coupled to the grippers which, in the event of non-synchronous running with the cylinder, runs onto the collision disk and prevents the collision disk from moving.Type: GrantFiled: October 21, 2005Date of Patent: February 26, 2008Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer
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Patent number: 7316477Abstract: An ink jet printer for discharging ink drips to a printing medium mounted on a conveying belt and conveyed from a plurality of nozzles, in which the printing quality is improved and the printing speed is raised. A printing medium conveying section has first and second conveying portions connected in the conveying direction of the printing medium and a plurality of conveying belts are arranged by mutually keeping a predetermined interval, in which the conveying belts of the first and second conveying portions are set so that an other-hand conveying belt is located between one-hand conveying belts, and a printing head is constituted of a first head set to a position facing the gap between the conveying belts of the first conveying portion and a second head set to a position facing the gap between the conveying belts of the second conveying portion.Type: GrantFiled: January 26, 2005Date of Patent: January 8, 2008Assignee: Seiko Epson CorporationInventor: Kaneo Yoda
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Patent number: 7287750Abstract: A machine for processing printing material sheets, in particular a sheet-fed printing press, has a sheet transport drum for transporting the printing material sheets and at least one sheet supporting element. The sheet supporting element, which is formed with a sheet supporting surface, is compatible with the sheet transport drum, for supporting the printing material sheets in a first operating mode. When the machine is operated in the first operating mode the sheet supporting element is held attached to the sheet transport drum, and when the machine is operated in a second operating mode the sheet supporting element is stored in the machine detached from the sheet transport drum. A corresponding printing material processing machine is suitable for carrying out the novel method.Type: GrantFiled: May 18, 2004Date of Patent: October 30, 2007Assignee: Heidelberger Druckmaschinen AGInventors: Hans Peter Boguhn, Jens Friedrichs, Andrea Martha Haupenthal, legal representative, Karl-Heinz Helmstädter, Hans-Peter Hiltwein, Olaf Lorenz, Günter Stephan, Peter Thoma, Rudi Haupenthal, deceased