Including Pneumatic Means Patents (Class 271/276)
  • Patent number: 8355162
    Abstract: A method for forming an image includes providing a media support comprising a cylindrical surface adapted to receive media; providing a recording head adapted to scan over the media; providing image data representative of the image; operating the recording head to form a first portion of the image in accordance with a first portion of the image data while helically scanning over the media; and operating the recording head to form a second portion of the image in accordance with a second portion of the image data while circularly scanning over the media.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: January 15, 2013
    Assignee: Eastman Kodak Company
    Inventor: Aldo Salvestro
  • Patent number: 8317197
    Abstract: An apparatus (100) and method (300) for media hold down transport air flow in an image production device is disclosed. The apparatus can include a media transport belt (110) configured to transport media sheets (105) in a process direction (116). The media transport belt can include a plurality of belt apertures (115) arranged along a cross-process direction (118), where the cross-process direction is perpendicular to the process direction. The plurality of belt apertures can be configured to conduct air to secure the media sheets on the media transport belt. The apparatus can include a vacuum plenum assembly (120). The vacuum plenum assembly can include a plurality of plenum apertures (125) arranged along the cross-process direction. The plurality of plenum apertures can be configured to conduct air through at least some of the plurality of belt apertures.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 27, 2012
    Assignee: Xerox Corporation
    Inventor: Paul J. DeGruchy
  • Patent number: 8308288
    Abstract: The medium holding apparatus includes: a medium holding device having a plurality of suction grooves through which a sheet-shaped medium is held by suction; and a suction pressure generating device which is connected to the suction grooves and generates a suction pressure in each of the suction grooves, wherein the suction pressure in one of the suction grooves that holds a first end portion of the sheet-shaped medium is made stronger than the suction pressure in one of the suction grooves that holds a central portion of the sheet-shaped medium.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: November 13, 2012
    Assignee: Fujifilm Corporation
    Inventor: Takashi Fukui
  • Patent number: 8302955
    Abstract: A printing and peeling arrangement comprises an impression drum for supporting a print medium during application of a printing image thereto, and one or more rotating vacuum fingers for applying vacuum via suction caps to the print medium to peel the print medium from the impression drum after printing. The vacuum finger is mounted for radial motion towards the impression drum and thereby avoids impact damage onto the print medium from the edges of the suction caps that results from a purely rotational approach to the drum.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: November 6, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Aron Shmaiser, Ayal Galili
  • Patent number: 8276638
    Abstract: An intermittent cutting transferring device configured to cut a first web into individual sheets and to intermittently transfer the individual cut sheets onto a second web being continuously fed includes an upper blade roll with a blade and a lower blade roll with an anvil element. The cut sheet is configured to be sucked onto an outer peripheral surface of the lower blade roll at a position where both side edge regions of the cut sheet and a front end region thereof face an edge area of the second region while a remaining region of the cut sheet faces a center area of the second region. A suction holding force in the edge area is stronger than a suction holding force in the center area.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: October 2, 2012
    Assignee: Unicharm Corporation
    Inventor: Hiroki Yamamoto
  • Patent number: 8261801
    Abstract: An intermittent cutting transferring device configured to cut a first web into individual sheets and to intermittently transfer the individual sheets onto a second web being continuously fed includes an upper blade roll with a blade and a lower blade roll with an anvil element. Each of the individual sheets cut from the first web is arranged to be guided and transferred onto the second web while the first web is being sucked onto an outer peripheral surface of the lower blade roll by the suction through suction holes formed in a first region on an outer peripheral surface of the lower blade roll. The first region defined as a suction region includes a plurality of the suction holes and a non-suction region does not include the suction holes. The suction region and the non-suction region are provided alternately in a roll rotating direction.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: September 11, 2012
    Assignee: Unicharm Corporation
    Inventor: Hiroki Yamamoto
  • Patent number: 8240661
    Abstract: A vacuum transport system includes vacuum plenum having a plenum plate as a part thereof and a belt with an array of holes that align to grooves in the plenum plate over which the belt is driven. A sliding plate on the underside of the plenum plate inside the vacuum plenum contains a series of holes and slots to progressively open or shut holes connecting the grooves to the vacuum plenum to maintain a constant air flow and vacuum pressure in the cross process direction for varying widths of media.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: August 14, 2012
    Assignee: Xerox Corporation
    Inventor: Henry T Bober
  • Publication number: 20120200030
    Abstract: A sheet transportation apparatus includes at least one beltless vacuum transport (BVT) that has a plurality of adjacent rollers. Each of the rollers comprises a rounded external surface and an axis about which the external surface rotates. The external surfaces of the rollers are spaced from each other by gaps referred to as “inter-roller spaces.” A fan is positioned on a first side of the rollers. The fan draws air through the inter-roller spaces to create a vacuum force on a second side of the rollers. The vacuum force maintains the sheets of media in contact with the second side of the rollers. The external surface of each of the rollers comprises a plurality of first regions having a first diameter and a plurality of second regions having a second diameter different than the first diameter. The first regions and the second regions of the external surface are adjacent one another and alternate along the length of the external surface of each of the rollers.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Applicant: XEROX CORPORATION
    Inventors: Erwin Ruiz, Melissa A. Monahan, Steven M. Russel
  • Patent number: 8181952
    Abstract: A paper sheet handling mechanism and method includes a loop-shaped part configured to hold a paper sheet (W1). Once a paper sheet (W2) present on the upstream side of a transport path relative to the loop-shaped part is fed to the loop-shaped part, the paper sheet (W2) present on the upstream side and the paper sheet (W1) present on the loop-shaped part are respectively moved, such that the paper sheet (W2) can be stacked with paper sheet (W1) circulated along the loop-shaped part. A paper sheet length detector determines whether the length of the paper sheet (W2) in the transport direction, which is fed to the loop-shaped part from the upstream side relative to the loop-shaped part along the transport path, is longer than a predetermined length. If the length is longer than the predetermined length, the paper sheet (W2) is ejected from the loop-shaped part.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: May 22, 2012
    Assignee: Glory Ltd.
    Inventors: Hiroki Hamasaki, Tetsuya Taniguchi
  • Patent number: 8177231
    Abstract: A conveying body that can attract and peel-off a recording medium by a simple mechanism, and an image forming device using the conveying body are provided. One end portions of through-holes of a drum are blocked by a blocking member, and a suction member and a blowing-out member are provided at other end portions of the through-holes. Due to a suction pump being operated and suction force being generated within the through-holes via a suction port of the suction member, the suction force passes through the through-holes and acts on long grooves of an outer peripheral surface of the drum, and a sheet can be attracted reliably to the outer peripheral surface of the drum. Further, because air is blown-out from the blowing-out member by operation of the suction pump, a leading end portion of a sheet can be reliably peeled-off from the outer peripheral surface of the drum.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: May 15, 2012
    Assignee: Fujifilm Corporation
    Inventors: Takashi Fukui, Tatsuya Nitta
  • Patent number: 8167302
    Abstract: A sheet of paper is reliably held by suction at the front and rear of a turn guide on the transport path of the sheet according to paper transport conditions.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: May 1, 2012
    Assignees: Duplo Seiko Corporation, Seiko Epson Corporation
    Inventors: Akira Kawaguchi, Kazuya Yamamoto
  • Patent number: 8167307
    Abstract: Disclosed is an image forming apparatus that includes an image forming unit that forms an image and a conveyance unit that conveys a medium to be recorded opposing the image forming unit. The conveyance unit includes a platen member that guides the medium to be recorded and has plural suction holes formed therein, plural air chambers that the plural suction holes formed in the platen member face, and plural suction units that suction air inside the plural air chambers through the suction holes. At least two or more of the plural air chambers are arranged in a direction crossing a conveyance direction of the medium to be recorded. One of the plural air chambers is connected to one of the plural suction units, and one or two or more of the plural air chambers is connected to at least one of the plural suction units.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: May 1, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuichiro Maeyama, Takayuki Niihara, Masahiko Yamada, Masato Ogawa
  • Patent number: 8132805
    Abstract: In a method and an apparatus for feeding sheets to a processing machine, in particular a printing press, provision is made for the sheet to be accelerated to processing speed by use of at least two acceleration stations arranged one after the other. One of the acceleration stations is arranged such that the acceleration station can be displaced in order to align the sheet.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: March 13, 2012
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Andreas Müller, Burkhard Wolf
  • Patent number: 8132883
    Abstract: An inkjet-type image forming apparatus includes a recording head configured to eject ink to form an image; a carriage where the recording head is provided, the carriage being configured to reciprocate in a direction orthogonal to a sheet transport direction; a transport unit disposed upstream of a print area in the sheet transport direction, the transport unit being configured to intermittently transport a sheet to the print area; a transport control unit configured to control the transport unit; a platen guide plate; a suction unit configured to suction the sheet onto the platen guide plate; and a control unit.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 13, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Takayuki Niihara, Mamoru Yorimoto, Yuichiro Maeyama
  • Patent number: 8123221
    Abstract: A device for pulling in flat-stock pieces and precisely-aligned transporting of the flat-stock pieces at a work station of a machine for processing the flat-stock pieces has a gripper apparatus that grabs a forward edge of a piece of flat stock and accelerates the flat-stock piece, and a sheet pick-up roller that picks up the accelerated piece of flat stock from the gripper apparatus, whereby the sheet pick-up roller has a roller gripper effective at a circumference thereof for grabbing the accelerated piece of flat stock. The roller gripper can move between a closed position in which the piece of flat stock is held fast and an open position in which the piece of flat stock is released. Suction holes operable to be charged with intake air are disposed in a part of a circumference of the sheet pick-up roller following in a direction of rotation behind the roller gripper.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: February 28, 2012
    Assignee: Winkler + Dünnebier AG
    Inventor: Martin Blumle
  • Patent number: 8123222
    Abstract: A compliant conveyance system including a diverter having at least one sidewall structure defining an internal chamber in fluid communication with a pressure source. The sidewall structure includes a compliant interface surface for conveying sheet material along the feed path and a plurality of orifices effecting fluid communication between the compliant interface surface and the internal chamber. A means is provided for developing a pressure differential across the sheet material through the orifices to urge an interface surface of the sheet material against the compliant interface surface of the diverter such that the compliant interface surface conforms to the sheet material interface surface.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: February 28, 2012
    Assignee: Pitney Bowes Inc.
    Inventor: Henson C. Ong
  • Patent number: 8113515
    Abstract: In a paper sheet transporting device, in an air duct portion of a suction duct, a suction confluence opening that collects air that is sucked and allows the air to pass through is disposed in a position included in a region where suction openings whose suction force is relatively the highest of plural suction openings exist and which position is away from the inner surface side of the suction surface portion, with the air duct portion being formed in a shape where the opening cross-sectional area of an air duct becomes relatively narrower away from the suction confluence opening in the rotating axial direction of a transport belt.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: February 14, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsutomu Komiyama, Kazutoshi Sugitani, Kiyotoshi Kaneyama, Katsunori Kikuchihara
  • Patent number: 8109510
    Abstract: There is provided a sheet inverting and conveying mechanism for conveying a sheet in a first direction, inverting obverse and reverse sides of the sheet, and then conveying the inverted sheet in a second direction. The mechanism includes: a first conveyance section for receiving, at its conveyance face, one side of the sheet, and for conveying the sheet in the first direction; a sheet inverting section for receiving, at its bent inner peripheral face, one side of the sheet, and for inverting the sheet while bending the sheet along the bent inner peripheral face; and a second conveyance section for receiving, at its conveyance face, one side of the inverted sheet, and for conveying the sheet in the second direction, wherein the first conveyance section and the second conveyance section are formed so that the sheet is conveyed while being attracted to the conveyance faces.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: February 7, 2012
    Assignee: Duplo Seiko Corporation
    Inventors: Yoshihide Sugiyama, Kazuya Yamamoto
  • Publication number: 20120017545
    Abstract: An item handling system includes a vacuum source, a transport element defining a plurality of vacuum openings in fluid communication with the vacuum source to create a securing force on an item proximate to the transport element for holding the item in contact with the transport element, and a drive element for driving the transport element to transport the item. The transport element further defines a plurality of sensor openings arranged in two substantially parallel arrays along a longitudinal direction of the transport element. The system further includes a sensor associated with each array of sensor openings for sensing energy passing through the sensor openings to thereby sense the item on the transport element. Each sensor is disposed at a common longitudinal position relative to the transport element. Sensing the item corresponds to a condition where the sensor associated with each array is blocked.
    Type: Application
    Filed: September 27, 2011
    Publication date: January 26, 2012
    Applicant: Pitney Bowes Inc.
    Inventors: Russell W. HOLBROOK, Daniel J. WILLIAMS
  • Patent number: 8091891
    Abstract: A device for treating sheet-like substrates with light is made for a suction table, which includes a circulating suction strip for transporting the sheet-like substrates, which suction strip forms a descending loop relative to its table-parallel transport level. The loop has a descending branch and, adjacent to the latter, an ascending branch. There is a gap for the passage of light between the descending branch and the ascending branch of the suction strip, which is bridged by a stationary bridging member which at least partially allows light to pass through it and whose surface is disposed at a level slightly recessed relative to the parallel transport level, so that a high degree of accuracy and trouble-free operation are ensured even at high transport speeds.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: January 10, 2012
    Inventor: Gerhard Meyer
  • Patent number: 8069894
    Abstract: An intermittent cutting transferring device configured to cut a first web into individual sheets and to intermittently transfer the individual sheets onto a second web being continuously fed includes an upper blade roll with a blade and a lower blade roll with an anvil element. Each of the individual sheets cut from the first web is arranged to be guided and transferred onto the second web while the first web is being sucked onto an outer peripheral surface of the lower blade roll by the suction through suction holes formed in a first region on an outer peripheral surface of the lower blade roll. The first region defined as a suction region includes a plurality of the suction holes and a non-suction region does not include the suction holes. The suction region and the non-suction region are provided alternately in a roll rotating direction.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: December 6, 2011
    Assignee: Uni-Charm Corporation
    Inventor: Hiroki Yamamoto
  • Patent number: 8070156
    Abstract: A sheet adsorption device includes a sheet adsorbing surface, a suction hole disposed on the sheet adsorbing surface, and a flow path shifting unit that shifts between a first state and a second state of a communication flow path that is communicated with the suction hole in accordance with existence of a sheet that covers the suction hole. The cross-section area of a flow path in the second state is smaller than that in the first state and the communication flow path is not closed in the second state.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: December 6, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Kaneo Yoda, Takato Hayashi, Yasushi Yajima, Satoru Shiohara, Satoshi Kaneta
  • Patent number: 8066283
    Abstract: A recording device includes a plurality of holes formed in the medium support part, a suction unit configured to suck out air via the holes, closing members configured and arranged to move in a direction away from the holes, an urging unit configured to urge the closing members toward the holes, and a sliding member configured and arranged to slide in a direction intersecting a moving direction in which the closing members move. The sliding member is configured and arranged to contact the closing members, and by sliding the sliding member, at least one hole is switched between a state in which the hole is closed by the closing member and a state in which the hole is left open by the closing member.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: November 29, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Jun Yamada
  • Patent number: 8066282
    Abstract: An apparatus for feeding and aligning sheets which are fed to a processing machine, e.g. a printing machine, includes at least two parallel transporting belts which, on a side directed toward the sheet, subject the sheet to different retaining forces, in such a way that the retaining force in outer peripheral regions is greater than in an inner region located therebetween. The transporting belts can be activated individually in dependence on the position of the sheet, and they can therefore align the sheet in its transporting direction and obliquely thereto.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: November 29, 2011
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Andreas Müller, Burkhard Wolf
  • Patent number: 8056893
    Abstract: A system and method for transporting a sheet of media through a print zone including a media entrance station, a media exit station and a first media transport translatable in a reciprocal manner between the entrance and exit stations. A second media transport transports a sheet onto and off of the first media transport. The second media transport transports the sheet in a first direction as the first media transport is moving in a second opposite direction.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: November 15, 2011
    Assignee: Xerox Corporation
    Inventors: Barry P. Mandel, Linn C. Hoover
  • Patent number: 8052146
    Abstract: Provided is a sheet inverting apparatus wherein members, such as a roller, are not brought into contact with the printed surface of a sheet at all, and the occurrence of dirt can be prevented by eliminating friction of ink on the surface of the sheet. A first transport apparatus and a second transport apparatus each have a plurality of transport belts which move on transport tracks along sheet transport directions and a suction box which sucks the sheet on the transport belts through suction holes formed on the transport belts. A turn guide arranged between the first transport apparatus and the second transport apparatus has a plurality of guide ribs disposed between the transport belts. Each of the guide ribs coming into slidable contact with the sheet forms a curved inverting transfer surface from an inversion starting point side to an inversion end point side.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: November 8, 2011
    Assignees: Duplo Seiko Corporation, Seiko Epson Corporation
    Inventors: Yoshihide Sugiyama, Kazuya Yamamoto, Katsunori Takahashi, Hidemasa Kanada, Junichi Kakuta
  • Publication number: 20110260395
    Abstract: There are provided a sheet conveying apparatus and an image forming apparatus, which enable stable sheet conveyance without depending on sheet size. An air suction portion having a duct portion for air suction is provided inwardly of an endless belt having a plurality of suction holes. Air is taken in through the suction holes of the endless belt and the duct portion for air suction by the air suction portion to absorb a sheet onto the endless belt. When the sheet having a sheet conveying direction length in which a sheet trailing end reaches the endless belt before a sheet leading end reaches a fixing device is conveyed, at least part of the portion of the duct portion through which the sheet trailing end passes before the sheet leading end reaches the fixing portion is closed by a shutter.
    Type: Application
    Filed: July 6, 2011
    Publication date: October 27, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: HIDEAKI MIYAZAWA
  • Publication number: 20110254217
    Abstract: A sheet feeding apparatus includes: a loading platen on which sheets are loaded, an air blowing section which blows air to sides of a loaded sheet bundle loaded on the loading platen, and an adsorption/conveyance mechanism which adsorbs and conveys a sheet, a driving section moving the loading platen up and down, wherein the air blowing section includes a plurality of air blowing openings facing both sides of the loaded sheet bundle and blowing air to the both sides, wherein each of the plurality of air blowing openings is formed so that a first air flow flows above the loading platen and a second air flow flows below the loading platen when the loading platen reaches a highest position by the driving section, and wherein the loading platen is provided with a penetration thorough which the second air flow flows from below to above the loading platen.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 20, 2011
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventor: Tomoo SUZUKI
  • Patent number: 8038151
    Abstract: A medium holding apparatus includes: a medium holding device which includes: flow channel forming sections having openings respectively and provided according to a prescribed arrangement pattern on a medium holding surface on which a medium is fixed and held; flow channel control sections having a smaller cross-sectional area than a cross-sectional area of the flow channel forming sections and restricting a flow rate of air flowing in the flow channel forming sections; and a pressure generating section connected to the flow channel forming sections via the flow channel control sections; and a suction pressure generating device which generates suction pressure that is applied to the medium held on the medium holding device.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: October 18, 2011
    Assignee: Fujifilm Corporation
    Inventor: Takashi Fukui
  • Patent number: 8002272
    Abstract: There are provided a sheet conveying apparatus and an image forming apparatus, which enable stable sheet conveyance without depending on sheet size. An air suction portion having a duct portion for air suction is provided inwardly of an endless belt having a plurality of suction holes. Air is taken in through the suction holes of the endless belt and the duct portion for air suction by the air suction portion to absorb a sheet onto the endless belt. When the sheet having a sheet conveying direction length in which a sheet trailing end reaches the endless belt before a sheet leading end reaches a fixing device is conveyed, at least part of the portion of the duct portion through which the sheet trailing end passes before the sheet leading end reaches the fixing portion is closed by a shutter.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: August 23, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hideaki Miyazawa
  • Publication number: 20110193284
    Abstract: A sheet feeder attracts a topmost sheet on a sheet conveyor belt as a conveying member and conveys the sheet toward an image forming unit in a subsequent step. The sheet feeder includes a vane rotation direction control unit that serves as a suction direction control unit controlling a direction in which a suction blower as an air suction unit sucks air to be reversed as a positive pressure generating unit that generates a positive pressure in a sheet suction unit. The vane rotation direction control unit controls the direction in which the suction blower sucks air to be reversed immediately after a feeding operation ends to generate the positive pressure in the sheet suction unit.
    Type: Application
    Filed: January 14, 2011
    Publication date: August 11, 2011
    Applicant: Ricoh Company, Limited
    Inventor: Munehisa Fuda
  • Patent number: 7988150
    Abstract: A machine which transports and processes print media can incorporate a vacuum chamber. The vacuum chamber can be within a print media transport device in order to maintain a print medium at a uniform predetermined distance from a print media processing device, such as an image printing device (e.g., an inkjet printer), an image scanning device, or a spectrophotometer). In one embodiment the vacuum chamber is located within a roller that transports print media past the processing device. In another embodiment the vacuum chamber is located on an opposite side of a belt that transports print media past the processing device. In each of the embodiments the size of the vacuum chamber opening, which defines the vacuum area on the transport device, and also the amount of vacuum pressure may be selectively adjusted depending upon the size and weight, respectively, of the print medium being processed.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: August 2, 2011
    Assignee: Xerox Corporation
    Inventors: William M. Harney, Gregory A. Ludgate
  • Patent number: 7980558
    Abstract: A vacuum control assembly for use in an image production device is provided. The assembly has a plenum, a perforated plate, a plurality of valve assemblies, and a controller. Each valve assembly has a rotating valve having a vacuum passage, and a chamber body having a plurality of chambers. Each valve is rotatable between a first position that fluidly connects the vacuum passage with at least one of the chambers to complete a fluid path between the plenum and the perforated plate, and a second position at which the vacuum passage connects the plenum with none of the chambers. The controller controls the plurality of valve assemblies to provide vacuum to a first predetermined portion of the perforated plate while also providing no vacuum to a second predetermined portion of the perforated plate.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: July 19, 2011
    Assignee: Xerox Corporation
    Inventors: Aaron Michael Moore, James Lawton Giacobbi
  • Patent number: 7963522
    Abstract: A vacuum control assembly for use in an image production device is provided. The assembly has a plenum having a vacuum inlet; a perforated plate fluidly connected to the plenum, the perforated plate having a plurality of perforations; a baffle plate connected to an inside of the plenum such that the baffle plate can slide relative to the perforated plate and can pivot relative to the perforated plate; and a protrusion on the inside of the plenum. The baffle plate is capable of sliding relative to the perforated plate between a closed position and an open position, the closed position being where the baffle plate causes the vacuum inlet to be fluidly connected to a first plurality of the perforations, and the open position being where the baffle plate is pivoted away from the perforated plate, causing the vacuum inlet to be fluidly connected to a maximum number of the perforations.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: June 21, 2011
    Assignee: Xerox Corporation
    Inventor: Linn C. Hoover
  • Patent number: 7954815
    Abstract: A vacuum transport includes a segmented, rigid or solid articulated belt combined with a vacuum plenum in each segment of the belt. Using a rigid segmented belt with a vacuum plenum connected to each segmented belt section eliminates ordinarily encountered drag friction in conventional vacuum transports by reducing the force necessary to move the belt with media thereon while simultaneously improving the motion quality of the move by driving the articulated rigid belt from the top side of the belt in a flat section.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: June 7, 2011
    Assignee: Xerox Corporation
    Inventors: Henry T Bober, Frank A Porter, James L Giacobbi, Adam D Ledgerwood, Aaron M Moore, Kenneth P Moore, Gregory A Ludgate
  • Publication number: 20110101603
    Abstract: A lifting unit and a process for lifting a stack of sheets having at least a first support (20, 120, 220) and at least a second support (22, 122, 222) are described. The first support defines a first con-toured or flat support surface, and the second support defines a second support surface which has a substantially horizontal, flat main surface. In the lifting unit at least one unit is provided for lifting the first and second supports. During operation the supports are lifted such that at least a highest point of the first support is kept elevationally above the second support, the second support is lifted more quickly than the first support, and the substantially horizontal, flat main surface of the second support is kept in its horizontal alignment. The lifting unit is described, in combination with a sheet feeder.
    Type: Application
    Filed: April 10, 2008
    Publication date: May 5, 2011
    Applicant: EASTMAN KODAK COMPANY
    Inventors: Eckhard Bauer, Soenke C. Bluethgen, Dimitrios Kostudis, Jorg Leyser, Ingo Neuber, Stefan Schluenss
  • Patent number: 7922174
    Abstract: An apparatus comprises a vacuum belt having belt edges and a contact surface between the belt edges. The contact surface is adapted to contact sheets of print media and the sheets of print media have sheet edges and a central sheet region. The contact surface has a central belt region located where the central sheet region of the sheets of print media contacts the contact surface of the vacuum belt. The contact surface has border regions located where the sheet edges of the sheets of print media contact the contact surface of the vacuum belt. The central belt region is located between the border regions. The contact surface has vacuum holes, and the vacuum holes comprise an irregular pattern, such that a different density of holes is located within the border regions relative to the central belt region.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: April 12, 2011
    Assignee: Xerox Corporation
    Inventors: Elias Panides, Ruddy Castillo
  • Patent number: 7857122
    Abstract: A vacuum conveyance/manifold system is provided for processing mailpieces. The vacuum conveyance/manifold system includes at least one conveyor belt and a compliant deck disposed beneath and supporting an underside surface of the conveyor belt. The conveyor belt has rows of aligned apertures disposed therein and a drive surface for engaging a face surface of each of the mailpieces. The compliant deck defines a neutral axis in bending and has a high elongation, low modulus material in a portion of the deck which is distal from the bending neutral axis, and a high yield strength, high modulus material in a portion of the deck which lies coincident with the bending neutral axis. Furthermore, the compliant deck has a plurality of elongate slots formed in the high elongation, low modulus material, which elongate slots are aligned, and in fluid communication, with the rows of apertures in the conveyor belt.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: December 28, 2010
    Assignee: Pitney Bowes Inc.
    Inventors: Daniel J. Williams, Russell W. Holbrook
  • Patent number: 7854429
    Abstract: The present invention is directed to providing an apparatus capable of transferring a sheet while reducing wear and using a relatively small driving force. The present invention is also directed to providing an apparatus capable of effectively obtaining a vacuum suction force with a simple structure.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: December 21, 2010
    Assignee: Kabushiki Kaisha Isowa
    Inventor: Etsuro Abe
  • Publication number: 20100314828
    Abstract: A vacuum control assembly for use in an image production device is provided. The assembly has a plenum having a vacuum inlet; a perforated plate fluidly connected to the plenum, the perforated plate having a plurality of perforations; a baffle plate connected to an inside of the plenum such that the baffle plate can slide relative to the perforated plate and can pivot relative to the perforated plate; and a protrusion on the inside of the plenum. The baffle plate is capable of sliding relative to the perforated plate between a closed position and an open position, the closed position being where the baffle plate causes the vacuum inlet to be fluidly connected to a first plurality of the perforations, and the open position being where the baffle plate is pivoted away from the perforated plate, causing the vacuum inlet to be fluidly connected to a maximum number of the perforations.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 16, 2010
    Applicant: XEROX CORPORATION
    Inventor: Linn C. HOOVER
  • Patent number: 7837195
    Abstract: An apparatus comprises a belt and a pressure roll contacting the belt. The pressure roll comprises at least two roll segments connected to a common axle and contacting the belt. The roll segments are offset from one another along the belt.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: November 23, 2010
    Assignee: Xerox Corporation
    Inventors: Kenneth P. Moore, Jr., Frank Porter, Adam D. Ledgerwood, Aaron M. Moore
  • Publication number: 20100276879
    Abstract: A vacuum transport system includes vacuum plenum having a plenum plate as a part thereof and a belt with an array of holes that align to grooves in the plenum plate over which the belt is driven. A sliding plate on the underside of the plenum plate inside the vacuum plenum contains a series of holes and slots to progressively open or shut holes connecting the grooves to the vacuum plenum to maintain a constant air flow and vacuum pressure in the cross process direction for varying widths of media.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 4, 2010
    Applicant: XEROX CORPORATION
    Inventor: Henry T. Bober
  • Publication number: 20100213666
    Abstract: Disclosed are embodiments of a machine which transports and processes print media. The machine incorporates a vacuum chamber within a print media transport device in order to maintain a print medium at a uniform predetermined distance from a print media processing device, such as an image printing device (e.g., an inkjet printer), an image scanning device, or a spectrophotometer). In one embodiment the vacuum chamber is located within a roller that transports print media past the processing device. In another embodiment the vacuum chamber is located on an opposite side of a belt that transports print media past the processing device. In each of the embodiments the size of the vacuum chamber opening, which defines the vacuum area on the transport device, and also the amount of vacuum pressure may be selectively adjusted depending upon the size and weight, respectively, of the print medium being processed.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 26, 2010
    Applicant: Xerox Corporation
    Inventors: William M. Harney, Gregory A. Ludgate
  • Publication number: 20100177152
    Abstract: The medium holding apparatus includes: a medium holding device having a plurality of suction grooves through which a sheet-shaped medium is held by suction; and a suction pressure generating device which is connected to the suction grooves and generates a suction pressure in each of the suction grooves, wherein the suction pressure in one of the suction grooves that holds a first end portion of the sheet-shaped medium is made stronger than the suction pressure in one of the suction grooves that holds a central portion of the sheet-shaped medium.
    Type: Application
    Filed: January 5, 2010
    Publication date: July 15, 2010
    Inventor: Takashi FUKUI
  • Patent number: 7744081
    Abstract: A sheet surface detecting mechanism, which detects the upper surface of sheets stacked on a tray, including: a sensor disposed in a position spaced apart from a conveying portion; a pivotal sensor flag turning the sensor ON/OFF; and a sheet surface detecting member being disposed in parallel with the sheets stacked on the tray, moving in a vertical direction while causing the sensor flag to pivot in contact with the upper surface of the sheets, and turning the sensor ON/OFF via the sensor flag.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: June 29, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taro Ikeda
  • Publication number: 20100148422
    Abstract: A sheet of paper is reliably held by suction at the front and rear of a turn guide on the transport path of the sheet according to paper transport conditions.
    Type: Application
    Filed: August 28, 2008
    Publication date: June 17, 2010
    Inventors: Akira Kawaguchi, Kazuya Yamamoto
  • Patent number: 7735829
    Abstract: A method and an apparatus for turning a sheet during its transport through a printing press permit improved printing results as a result of improved sheet guidance. A sheet is tautened following a transfer from a first transport device to a second transport device.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: June 15, 2010
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Hans Butterfaβ, Daniel Conzelmann, Peter Hachmann, Arno Jünger, Markus Kramer
  • Publication number: 20100118094
    Abstract: 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: Application
    Filed: October 25, 2007
    Publication date: May 13, 2010
    Inventor: Kurt Greinwald
  • Publication number: 20100109235
    Abstract: Provided is a sheet inverting apparatus wherein members, such as a roller, are not brought into contact with the printed surface of a sheet at all, and the occurrence of dirt can be prevented by eliminating friction of ink on the surface of the sheet. A first transport apparatus and a second transport apparatus each have a plurality of transport belts which move on transport tracks along sheet transport directions and a suction box which sucks the sheet on the transport belts through suction holes formed on the transport belts. A turn guide arranged between the first transport apparatus and the second transport apparatus has a plurality of guide ribs disposed between the transport belts. Each of the guide ribs coming into slidable contact with the sheet forms a curved inverting transfer surface from an inversion starting point side to an inversion end point side.
    Type: Application
    Filed: August 28, 2008
    Publication date: May 6, 2010
    Inventors: Yoshihide Sugiyama, Kazuya Yamamoto, Katsunori Takahashi, Hidemasa Kanada, Junichi Kakuta
  • Patent number: 7703765
    Abstract: Embodiments herein include a printing or copying device that includes a media transport belt and a vacuum manifold. The vacuum manifold has an air intake positioned adjacent the media transport belt and has a vacuum blower or other air moving device that forces air out an air outlet of the manifold. The vacuum blower forces air from the vacuum manifold through the air outlet to create vacuum within the manifold. The vacuum manifold also includes transport belt openings that are sized, shaped, and positioned to allow the transport belt to pass into the vacuum manifold. The media transport belt is positioned partially within, and partially outside the vacuum manifold, such that the media transport belt is positioned to move through (within) the vacuum manifold from a first transport belt opening to a second transport belt opening.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: April 27, 2010
    Assignee: Xerox Corporation
    Inventor: Robert Charles Standing