By Endless-feed Band Patents (Class 400/635)
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Patent number: 10543698Abstract: A platen includes a plurality of supporting portions capable of supporting a sheet; negative pressure chambers, to which a negative pressure is supplied, so as to suck a sheet facing the supporting portions to the supporting portions; and an ink receiver that receives ink ejected from a printhead to the outside of the sheet supported by the supporting portions. The plurality of supporting portions are arranged in a sheet width direction transverse a sheet conveyance direction. The plurality of negative pressure chambers are disposed in a manner corresponding to the plurality of supporting portions, respectively.Type: GrantFiled: September 27, 2017Date of Patent: January 28, 2020Assignee: Canon Kabushiki KaishaInventors: Takahide Onuma, Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Yasunori Saito
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Patent number: 9193192Abstract: A method and system for reducing registration errors in a printing system are disclosed. A plurality of tension zones is defined in the printing system. Tension on the web in one tension zone is controlled independently of the tension on the web in the other tension zones. The printing system also includes at least one roller for each tension zone. The rollers receive tension control commands and control the amount of tension on the web in their respective tension zones. The printing system is used to print a first copy of the print job on the web and a plurality of registration errors is determined. Tension control adjustments are computed for each tension zone based on the registration errors. The tension control adjustments are used to adjust the tension control commands to the rollers to print a second copy of the print job, thereby reducing registration errors.Type: GrantFiled: August 29, 2014Date of Patent: November 24, 2015Assignee: Eastman Kodak CompanyInventors: Matthias H. Regelsberger, Randy E. Armbruster
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Patent number: 8770879Abstract: A recording section is configured to record an image on a recording medium. An endless conveying belt has a surface disposed in confrontation with the recording section and is configured to move in a conveying direction with the recording medium supported by the surface, thereby conveying the recording medium in the conveying direction. A measuring section has a detecting region and configured to measure a position of the conveying belt with respect to a perpendicular direction that is perpendicular to the conveying direction. The measuring section includes an optical sensor that is configured to detect the position of the conveying belt with respect to the perpendicular direction. A sensor moving section is configured to move the sensor based on a measurement result of the measuring section, such that the conveying belt is detected in the detecting region.Type: GrantFiled: September 29, 2011Date of Patent: July 8, 2014Assignee: Brother Kogyo Kabushiki KaishaInventor: Kenji Murakami
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Publication number: 20140079461Abstract: An image forming apparatus includes an image forming unit and a conveyance unit. The image forming unit forms an image on a print medium. The conveyance unit has a belt member to convey the print medium in a state in which an end of the print medium in a width direction perpendicular to a conveyance direction of the print medium is placed outside an end of the belt member in the width direction.Type: ApplicationFiled: September 16, 2013Publication date: March 20, 2014Applicant: RICOH COMPANY, LTD.Inventors: Yuuzoh Obata, Makoto KIKURA, Kazuyoshi MATSUMOTO, Kazuyoshi KONDO, Gaku HOSONO, Yoshinori UCHINO, Norikazu YANASE, Daisuke NAKAMURA
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Patent number: 8550618Abstract: A platen unit includes a supporting member that is grounded and is made of a metal, a platen supporting member that is provided on the supporting member, includes an inner space, is formed of a conductive resin, and includes a first contact point, a platen that is provided on the platen supporting member, is formed of a conductive resin, and includes a second contact point which contacts the first contact point, and a seal member that is provided between the platen supporting member and the platen.Type: GrantFiled: June 12, 2012Date of Patent: October 8, 2013Assignee: Seiko Epson CorporationInventors: Takayuki Kawakami, Takao Yamamoto, Satoru Kobayashi
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Patent number: 8021063Abstract: A printer includes first transporting belts disposed in parallel at predetermined intervals in the direction intersecting the direction of transportation of print media. The first transporting belts transport a print medium while adsorbing the print medium. Second transporting belts disposed in parallel at predetermined intervals in the direction intersecting the direction of transportation of print media further transport the print media. The second transporting belts are separated from the first transporting belts at the downstream part of the first transporting belts in the direction of transportation of print media. A print head prints on the print medium. The position of separation at which the print medium is separated from the first transporting belts is different in the direction of transportation of print media between one of the first transporting belts and another one of the first transporting belts.Type: GrantFiled: March 13, 2008Date of Patent: September 20, 2011Assignee: Seiko Epson CorporationInventors: Tomoki Hatano, Osamu Shinkawa, Yusuke Sakagami
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Patent number: 7712989Abstract: An ink jet recording apparatus performs a print operation by controlling an ink jet recording head to eject ink drops there from against front and back surfaces of a recording sheet at a print position. The apparatus includes a transporting mechanism for transporting a portion of the recording sheet to a location outside of the apparatus after a completion of the print operation on the front surface of the recording sheet and just before printing of the back surface of the recording sheet.Type: GrantFiled: December 12, 2005Date of Patent: May 11, 2010Assignee: Ricoh Company, Ltd.Inventors: Motokazu Yasui, Tsumori Sato, Masanori Horike, Masato Yokoyama, Masumi Sato
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Patent number: 7708483Abstract: An unbacked transport and conditioning printing system for printing a pattern on a fabric is disclosed. The system includes a fabric characterization and tension control subsystem for gathering information on variations in the fabric and an irregularity detection subsystem for detecting irregularities in the fabric, as well as, crease detection and removal. The fabric passes through a fabric drying and conditioning subsystem for characterization of the fabric. The system also includes a fabric control subsystem for advancing the fabric through a print zone, where a pattern is printed on an unbacked fabric. The fabric is transported through a drying and post-processing subsystem and a closed-loop color control subsystem.Type: GrantFiled: October 21, 2005Date of Patent: May 4, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Mohammad M Samii, Mark A. Van Veen, Jack H Schmidt
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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: 20080159801Abstract: A print media loading mechanism for a modular printer assembly includes a drive assembly. A traversing mechanism is engaged with the drive mechanism. A pair of endless belt and roller assemblies is operatively engaged with the traversing mechanism, so that actuation of the drive assembly displaces the traversing mechanism to push, or pull, the belt and roller mechanisms farther apart or closer together, respectively.Type: ApplicationFiled: March 17, 2008Publication date: July 3, 2008Inventors: Kia Silverbrook, Tobin Allen King
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Patent number: 7390085Abstract: On a medium transporting surface, a dimple extending continuously from a transportation upstream end of a medium to a transportation downstream end are formed. Hereby, a leading end of the medium, after pulled into the dimples once, is transported in the pulled state. Therefore, it is prevented that the leading end of the medium is curled up by a conventional partition wall provided in the direction perpendicular to the medium transporting direction, so that it is possible to prevent a stain on the medium caused by contact with a recording head.Type: GrantFiled: March 5, 2004Date of Patent: June 24, 2008Assignee: Seiko Epson CorporationInventors: Takayuki Ishii, Yoshitaka Shimada
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Patent number: 7344326Abstract: An ink jet recording apparatus performs a print operation by controlling an ink jet recording head to eject ink drops there from against front and back surfaces of a recording sheet at a print position. The apparatus includes a transporting mechanism for transporting a portion of the recording sheet to a location outside of the apparatus after a completion of the print operation on the front surface of the recording sheet and just before printing of the back surface of the recording sheet.Type: GrantFiled: February 27, 2004Date of Patent: March 18, 2008Assignee: Ricoh Company, Ltd.Inventors: Motokazu Yasui, Tsumori Sato, Masanori Horike, Masato Yokoyama, Masumi Sato
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Patent number: 7195349Abstract: An ink jet recording apparatus minimizing adhesion of ink mist to a recording medium due to electrostatic attraction of a belt conveying the recording medium. The apparatus includes a liquid applying device applying a processing liquid to a position on the recording medium corresponding to an attracting-force generating device provided on the conveying belt. The apparatus discharges the processing liquid to the position before the ink is discharged on the recording medium. Since moisture of the processing liquid reduces surface charges of the recording medium, the amount of ink mist adhering to the recording medium can be reduced.Type: GrantFiled: December 8, 2004Date of Patent: March 27, 2007Assignee: Canon Kabushiki KaishaInventors: Ayako Uji, Noribumi Koitabashi
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Patent number: 7152971Abstract: On a carriage which a plurality of ink heads are arranged and from which an arm rotatable supporting an introduction roller for an image forming medium extends on an upstream side of a conveying path of the image forming medium; a conveying mechanism which is provided under the carriage in such a manner as to face the carriage and which conveys the image forming medium on a downstream side of the conveying path; and a plurality of regulation sections arranged in the carriage and the conveying mechanism respectively, wherein a positional relation between the carriage and the conveying mechanism is regulated by contacts among the plurality of regulation sections.Type: GrantFiled: November 1, 2004Date of Patent: December 26, 2006Assignee: Olympus CorporationInventors: Yukitaka Kumagai, Tatsutoshi Hashimoto, Hiroshi Hashi
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Patent number: 7077588Abstract: A printer includes a housing containing a pagewidth printhead. A keyboard to operate the computer is integrated with the housing. The printer is operated by a controller PCB located within the housing that is responsive to commands from the computer. Integration of the keyboard with the housing assists in reducing the number of computer peripherals that are usually required which is beneficial where working space is limited.Type: GrantFiled: October 28, 2004Date of Patent: July 18, 2006Assignee: Silverbrook Research Pty LtdInventors: Tobin Allen King, Kia Silverbrook
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Patent number: 7048457Abstract: A document delivery device for delivering a document such as a receipt or transaction record to a user at a kiosk or other automated device significantly reduces “pushing” of documents, increasing reliability and robustness. The document delivery device includes input and output roller assemblies that alternately engage and disengage a shared roller. Upon contacting the shared roller, the input roller assembly creates a first nip point to draw a document into a retention location. Likewise, an output roller creates a second nip point to draw a document out of the retention location for presentation to a user. The input and output roller assemblies are coupled together such that the rotation of one produces an opposite rotation of the other. A drive gear may be operably connected to the roller assemblies to drive the rotation thereof and to provide the translational force to engage or disengage the shared roller.Type: GrantFiled: February 24, 2003Date of Patent: May 23, 2006Assignee: International Business Machines CorporationInventor: Richard H. Harris
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Patent number: 7036923Abstract: A conveyor unit in an image recording apparatus can convey a record medium, being unwound from a roll, in either of a first direction in which the roll is unwound and a second direction reverse to the first direction. The image recording apparatus includes first and second contact mechanisms capable of bringing the record medium into close contact with a conveyor member at positions distant in the respective first and second directions from an image recording position where an image recording head records an image on the record medium. The first contact mechanism brings the record medium, being conveyed in the first direction, into close contact with the conveyor member.Type: GrantFiled: June 30, 2004Date of Patent: May 2, 2006Assignee: Brother Kogyo Kabushiki KaishaInventors: Osamu Takagi, Susumu Kuzuya
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Patent number: 7018034Abstract: A print media transport assembly for advancing a print media through a print zone includes a primary drive roller rotatably mounted on an entry side of the print zone and a pinch roller rotatably mounted opposite the primary drive roller. The primary drive roller and the pinch roller are adapted to contact the print media and the primary drive roller is adapted to advance the print media through the print zone. The print media transport assembly also includes a secondary drive roller rotatably mounted on an exit side of the print zone and a starwheel rotatably mounted opposite the secondary drive roller. The secondary drive roller is adapted to contact a first side of the print media and the starwheel is adapted to selectively contact a second side of the print media.Type: GrantFiled: July 10, 2003Date of Patent: March 28, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Steve O. Rasmussen, Robert M. Yraceburu
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Patent number: 6976801Abstract: The present invention describes a double belt transport system for moving a mailpiece into a printing area of a digital printer. The transport system includes an upper belt and a lower belt. The upper belt has a straight section to form a nip with the lower belt to ingest the mailpiece. The straight section also defines a registration plane to register the upper surface of the mailpiece with respect to the print head of the printer. In order to make sure the registration is consistent regardless of the thickness of the mailpiece, an up-lifting mechanism is used to push the bottom of the mailpiece in an upward direction against a shield plate, which is positioned substantially on the registration plane. A velocity measurement device, such as an optical encoder, is used to measure the moving speed of the belts so that the printing speed of the digital printer matches the moving speed of the mailpiece in the print area.Type: GrantFiled: December 28, 2000Date of Patent: December 20, 2005Assignee: Pitney Bowes Inc.Inventors: James A. Salomon, Steven E. Cohen, Cyndee Jonas, Eric A. Belec
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Patent number: 6948870Abstract: A printer includes a print media loading mechanism that includes a pair of opposed endless belts to pick up print media for printing. The belts ride upon opposed pairs of rollers which are held in slides to limit the rollers' movement to motion towards and away from each other. Worm screws are located parallel to, and on either side of, the belts. Traverser blocks are mounted on the worm screws adjacent each end of the opposed rollers. Scissor members connect the traverser blocks to the ends of adjacent rollers. A motor is arranged to rotate the worm screws thereby causing the traverser blocks to move towards or away from the opposed rollers in order to move the opposed rollers away from each other or towards each other to pick up print media.Type: GrantFiled: November 15, 2004Date of Patent: September 27, 2005Assignee: Silverbrook Research PTY LTDInventor: Kia Silverbrook
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Patent number: 6925278Abstract: Ensuring proper compass and register positioning during printing. Marks are imprinted on a carrying element and at least one sensor is present to detect the marks on the carrying element and a second sensor detects a seam on the carrying element. A control mechanism receives mark values from the first sensor and seam values from the second sensor, and discarding mark values when the seam is detected.Type: GrantFiled: April 16, 2004Date of Patent: August 2, 2005Assignee: Eastman Kodak CompanyInventors: Jan Dirk Boness, Ingo Klaus Michael Dreher, Heiko Hunold, Stefan Schrader
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Patent number: 6857802Abstract: To provide a recording apparatus capable of detecting the deterioration of insulation to prevent the damage of a recording head by detecting whether or not there is the current leakage from a surface of a conveyor belt. The inventive recording apparatus includes a conveyor belt for conveying a recording medium comprising a plurality of inner electro-conductive members, a charging section for charging the inner electro-conductive members by a high voltage to attract the recording medium onto the conveyor belt by an electro-static force, a recording head for carrying out the recording on the recording medium attracted onto the conveyor belt, a leakage detection roller for detecting the deterioration of the insulation of the conveyor belt, and a control section for treating the abnormality in accordance with the results detected by the leakage detection roller.Type: GrantFiled: August 28, 2003Date of Patent: February 22, 2005Assignee: Canon Kabushiki KaishaInventors: Noriyuki Chino, Osamu Kanome
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Patent number: 6846061Abstract: In an ink-jet printer, flushing region is arranged in a part of a conveyor belt. In a flushing operation, the ink-jet head ejects ink onto the flushing region. An ink mover is arranged confronting the conveyor belt. Ejected ink onto the flushing region is moved by the ink mover toward an opening arranged adjacent to the flushing region. An ink retainer is arranged confronting the ink mover under the conveyor belt, and thereby ink moved by the mover and passed through the opening is retained by the ink retainer.Type: GrantFiled: September 24, 2003Date of Patent: January 25, 2005Assignee: Brother Kogyo, Kabushiki KaishaInventor: Atsuhisa Nakashima
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Patent number: 6834949Abstract: A device for holding a sheetlike article on a movable underlying surface for transporting the sheetlike article in at least one direction selected from the group consisting of a direction into and a direction out of an operating station having a printing unit, includes a member having a surface underlying the sheetlike article, the sheetlike article being retainable by pneumatic pressure on the surface, a screening device disposed locally fixedly with respect to an operating station, the screening device serving for reducing an airflow in a region of the printing unit at least with respect to adjacent regions, the reduction in the airflow resulting from the sheetlike article being held on the underlying surface.Type: GrantFiled: February 6, 2002Date of Patent: December 28, 2004Assignee: Heidelberger Druckmaschinen AGInventor: Martin Greive
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Publication number: 20040228669Abstract: An inkjet printer includes a plurality of rollers, an endless transportation belt, a belt rotating mechanism, a recording unit, a printing medium supply mechanism, and a control unit. The transportation belt is laid on the rollers and defines a first recess portion, which extends in a direction perpendicular to a printing medium transporting direction, in an outer circumferential surface thereof. The belt rotating mechanism applies a rotating force to the transportation belt. The recording unit is disposed to face the transportation belt and forms an image. The printing medium supply mechanism supplies a printing medium onto the transportation belt. The control unit controls at least one of the belt rotating mechanism and the printing medium supply mechanism so that when the printing medium is on the transportation belt, one of front and rear end portions of the printing medium is located in the first recess portion.Type: ApplicationFiled: March 4, 2004Publication date: November 18, 2004Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Atsuhisa Nakashima, Tsugio Okamoto, Osamu Takagi, Susumu Kuzuya
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Patent number: 6814515Abstract: A printing apparatus includes: a paper roll containing part containing a paper roll; a printer unit provided side by side with the paper roll containing part, the printer unit printing information on paper pulled from the paper roll and cutting a piece off the pulled paper on which piece the information is printed; and a presenter unit. The presenter unit includes a reception opening formed on an upper side thereof and receiving the cut piece of paper delivered from the printer unit, first and second ejection openings formed on opposite ends of the presenter unit and ejecting the cut piece of paper, and a conveying mechanism conveying the cut piece of paper between the first and second ejection openings. The presenter unit is provided below the paper roll containing part and the printer unit so that the cut piece of paper is delivered into the reception opening.Type: GrantFiled: July 2, 2002Date of Patent: November 9, 2004Assignee: Nagano Fujitsu Component LimitedInventors: Masahiro Tsuchiya, Masaru Kihara, Fumio Sakurai, Sumio Watanabe
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Publication number: 20040165928Abstract: A document delivery device for delivering a document such as a receipt or transaction record to a user at a kiosk or other automated device significantly reduces “pushing” of documents, increasing reliability and robustness. The document delivery device includes input and output roller assemblies that alternately engage and disengage a shared roller. Upon contacting the shared roller, the input roller assembly creates a first nip point to draw a document into a retention location. Likewise, an output roller creates a second nip point to draw a document out of the retention location for presentation to a user. The input and output roller assemblies are coupled together such that the rotation of one produces an opposite rotation of the other. A drive gear may be operably connected to the roller assemblies to drive the rotation thereof and to provide the translational force to engage or disengage the shared roller.Type: ApplicationFiled: February 24, 2003Publication date: August 26, 2004Inventor: Richard H. Harris
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Patent number: 6733197Abstract: An image recording apparatus records an image by adhering ink droplets ejected from a recording head to a long recording material. A solvent in the ink droplets is removed by a heating and drying section, and a transparent sheet material is laminated onto an image recording surface of the recording material by a laminating section. Subsequently, the recording material is cut into pieces by a first cutter along boundaries of recorded images, which boundaries extend in a transverse direction of the recording material. A piece having images recorded thereon is transferred to a conveyance belt, conveyed, cut for each of the images by a second cutter, and accumulated in a print accumulating section via a conveyance belt. A piece having a single image recorded thereon is conveyed on another conveyance belt and accumulated in the print accumulating section. Thus, processing time per image can be reduced.Type: GrantFiled: May 7, 2002Date of Patent: May 11, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Mitsuru Koike, Yoshio Ishii, Makoto Yamada, Eiichi Kito
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Patent number: 6718879Abstract: Determining and correcting registration errors, which are caused by the rotational speed of a print cylinder changing because of a sheet passing between the print cylinder and a sheet transport conveyor belt. At least one first registration mark is applied onto the conveyor belt prior to a sheet being transported thereby, and at least one second registration mark is applied onto the conveyor belt after the transported sheet. By the detection of the first registration mark and the second registration mark, a calculation of a timing number between the detection of the first registration mark and the second registration mark can be made. The calculated timing number is compared to a target value to determine any error due to change in angular velocity of the print cylinder due to engagement with the sheet.Type: GrantFiled: July 30, 2002Date of Patent: April 13, 2004Assignee: NexPress Solutions LLCInventors: Ingo Klaus Michael Dreher, Heiko Hunold, Patrick Metzler, Stefan Schrader
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Patent number: 6719469Abstract: An ink jet recording apparatus performs a print operation by controlling an ink jet recording head to eject ink drops therefrom against front and back surfaces of a recording sheet at a print position. The apparatus includes a transporting mechanism for transporting a portion of the recording sheet to a location outside of the apparatus after a completion of the print operation on the front surface of the recording sheet and just before printing of the back surface of the recording sheet.Type: GrantFiled: August 14, 2002Date of Patent: April 13, 2004Assignee: Ricoh Company, Ltd.Inventors: Motokazu Yasui, Tsumori Sato, Masanori Horike, Masato Yokoyama, Masumi Sato
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Patent number: 6695504Abstract: A conveying apparatus for attracting and conveying a conveyed object by a belt provided with electrodes, includes an applying unit for applying a voltage to the electrodes to generate an electric force and a belt attracting unit for attracting the belt utilizing the electric force. Vibration of the conveying belt during conveyance can be suppressed and stable conveyance of a conveyed object can be realized.Type: GrantFiled: July 10, 2001Date of Patent: February 24, 2004Assignee: Canon Kabushiki KaishaInventor: Tadashi Matsumoto
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Patent number: 6682238Abstract: An ink-jet apparatus is disclosed having a vacuum type print media transport subsystem for moving the print media through a printing zone. A transport belt is provided with an array of perforations such that vacuum flow is restricted. The perforations only pass vacuum induced airflow through the belt when over vacuum ported platen regions.Type: GrantFiled: March 29, 2001Date of Patent: January 27, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Robert M Yraceburu, James O Beehler
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Patent number: 6644186Abstract: A device for guiding copies severed from a material web in a folder by a cutting-cylinder pair includes revolving transport tapes for picking up the copies after they have passed through a copy guide arranged in an outlet wedge of the cutting-cylinder pair, the copy guide extending at least partly over the width of the material web, and being formed of copy guide sections which are automatically adjustable, both with respect to the width of the copies to be guided and with respect to a passage cross section for the copies to be guided; a folder including the copy-guiding device; and a web-processing rotary printing machine including at least one folder with at least one device according to the invention.Type: GrantFiled: October 1, 2001Date of Patent: November 11, 2003Assignee: Heidelberger Druckmaschinen AGInventors: Eric Herrou, Alain Maresse, Thierra Melon
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Patent number: 6588954Abstract: An ink jet printer wherein a belt transports an image receiving member past a printhead is equipped with guiding means (18) for creating a bulge, d, in the belt, extending towards the ink ejecting means, thus keeping the “throw distance” constant and/or with rollers for moving the belt, one of the rollers having a flange and being positioned so as to force the belt agains the flange.Type: GrantFiled: February 16, 2001Date of Patent: July 8, 2003Assignee: Agfa-GevaertInventors: Bart Verhoest, Hilbrand Vanden Wyngaert, Dirk De Ruijter, Bart Verlinden
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Patent number: 6572294Abstract: A vacuum platen and method for use thereof in a printing device are disclosed. An apparatus embodiment includes a first surface having a plurality of first apertures therethrough, a labyrinth configured to include a plurality of passageways each of which is fluidly coupled to at least one of the first apertures, and a second surface having a plurality of second apertures therethrough each of which is fluidly coupled to the vacuum source and at least one of the passageways thereby establishing an airflow from the first apertures, through the passageways, and out the second apertures. The vacuum platen also includes at least one receptacle in each of the passageways, each receptacle configured to collect debris from the airflow as it travels through the labyrinth.Type: GrantFiled: October 3, 2001Date of Patent: June 3, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventors: James O Beehler, Steve O Rasmussen, Robert M Yraceburu
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Patent number: 6543948Abstract: A printer with a media transport has a rigid, air-transmissive platen. A movable air-transmissive flexible web overlies the platen and moves along a feed axis. A suction device communicates with the platen to draw air through the web and through the platen so that a sheet of media carried on the web is biased toward the platen. A manifold underlies the platen and has a number of separate chambers open to the platen, so that the suction device is connected to each of the chambers. A controller operates to selectably prevent communication between the suction device and at least some of the chambers.Type: GrantFiled: February 9, 2001Date of Patent: April 8, 2003Assignee: Hewlett-Packard CompanyInventors: James O Beehler, Robert M. Yraceburu, Steve O Rasmussen, David E Smith
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Patent number: 6536894Abstract: A print media preheating method and apparatus uses heat, vacuum, and mechanisms for drying and flattening a sheet prior to ink-jet printing thereon. Pre-shrinking the media, driving out and substantially reducing inherent moisture content prior to depositing wet ink thereon provides greater flatness in the print-zone whereby ink-jet print quality is improved.Type: GrantFiled: June 6, 2000Date of Patent: March 25, 2003Assignee: Hewlett-Packard CompanyInventors: Steve O Rasmussen, Geoff Wotton, Steven B Elgee, Todd R Medin
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Patent number: 6505927Abstract: An apparatus and method for drying a receiver media (30) in an ink jet printer. The apparatus generally comprises a means for creating a pressure differential between the upper surface (20) and the lower surface (50) of the receiver media (30), wherein the pressure at the lower surface (50) of the receiver media (30) is lower than the pressure at the upper surface (20) of the receiver media (30). The pressure differential-creating means may include a vacuum pump (70) adapted to generate a vacuum at the lower surface (50) of the receiver media (30) or an air pump (130) adapted to pass air currents (140) across the lower surface (50) of the receiver media (30) to cause a “Bernoulli effect”.Type: GrantFiled: December 15, 1999Date of Patent: January 14, 2003Assignee: Eastman Kodak CompanyInventors: Constantine N. Anagnostopoulos, David S. Ross, James M. Chwalek
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Patent number: 6497522Abstract: An ink-jet apparatus is disclosed having a vacuum type print media transport subsystem for moving the print media through a printing zone. A transport belt is provided with an array of perforations such that vacuum flow is restricted. The perforations only pass vacuum induced airflow through the belt when over vacuum ported platen regions. In an alternative embodiment, belt lifting is controlled and substantially eliminated via vacuum ports associated with non-perforated regions of the transport belt.Type: GrantFiled: July 16, 2001Date of Patent: December 24, 2002Assignee: Hewlett-Packard CompanyInventors: Geoff Wotton, Robert M. Yraceburu
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Publication number: 20020159813Abstract: An ink jet printer wherein a belt transports an image receiving member past a printhead is equipped with guiding means (18) for creating a bulge, d, in the belt, extending towards the ink ejecting means, thus keeping the “throw distance” constant and/or with rollers for moving the belt, one of the rollers having a flange and being positioned so as to force the belt agains the flange.Type: ApplicationFiled: February 16, 2001Publication date: October 31, 2002Inventors: Bart Verhoest, Hilbrand Vanden Wyngaert, Dirk De Ruijeter, Bart Verlinden
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Patent number: 6471430Abstract: The invention proposes a system for manufacturing sheet-like printed products (3), in which sheet-like starting sections (2) are processed. These starting sections are transported through at least one printing station (13) by means of a transport device (4). The application of a printed image takes place in the printing station (13) with the aid of a printer (26) and a subsequently arranged dryer (32), with an electronic printed image specification device (43) making it possible to realize individual printed images on individual sheets.Type: GrantFiled: May 5, 2000Date of Patent: October 29, 2002Assignee: Industrieservis Gesellschaft fur Innovation, Technologie-Transfer und Consulting fur Thermische Prozessanlagen mbHInventors: Rainer Gaus, Gerhard Bach, Kai K. O. Bär
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Publication number: 20020110400Abstract: A printer with a media transport has a rigid, air-transmissive platen. A movable air-transmissive flexible web overlies the platen and moves along a feed axis. A suction device communicates with the platen to draw air through the web and through the platen so that a sheet of media carried on the web is biased toward the platen. A manifold underlies the platen and has a number of separate chambers open to the platen, so that the suction device is connected to each of the chambers. A controller operates to selectably prevent communication between the suction device and at least some of the chambers.Type: ApplicationFiled: February 9, 2001Publication date: August 15, 2002Inventors: James O. Beehler, Robert M. Yraceburu, Steve O. Rasmussen, David E. Smith
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Patent number: 6431778Abstract: The invention concerns a device comprising a belt with one side opposite unsprung support means and extending between an upstream roller and a downstream roller both suspended so that the object can be sandwiched between the unsprung support means and said belt side, the latter being wound around at least two other rollers whereof at least one is unsprung.Type: GrantFiled: November 16, 2000Date of Patent: August 13, 2002Assignees: SECAP, Ascom Hasler Mailing Systems AGInventors: Gérard Coudray, Jacques Beord, Hervé Baumann
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Patent number: 6419411Abstract: The present invention relates to a sheet conveying apparatus comprising a conveyance belt for supporting and conveying a sheet, an attraction force generating device for electrostatically attracting the sheet, a voltage supplying device for supplying voltage to a voltage receiving portion of an electrode of the attraction force generating means formed at a side edge with respect to a moving direction of the conveyance belt and a protection member formed at a side edge with respect to a moving direction of the conveyance belt for isolating the voltage receiving portion of the electrode of the attraction force generating device from an exterior by covering the entire side edge of the conveyance belt.Type: GrantFiled: September 21, 1999Date of Patent: July 16, 2002Assignee: Canon Kabushiki KaishaInventor: Koichi Tanno
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Publication number: 20020085871Abstract: The present invention describes a double belt transport system for moving a mailpiece into a printing area of a digital printer. The transport system includes an upper belt and a lower belt. The upper belt has a straight section to form a nip with the lower belt to ingest the mailpiece. The straight section also defines a registration plane to register the upper surface of the mailpiece with respect to the print head of the printer. In order to make sure the registration is consistent regardless of the thickness of the mailpiece, an up-lifting mechanism is used to push the bottom of the mailpiece in an upward direction against a shield plate, which is positioned substantially on the registration plane. A velocity measurement device, such as an optical encoder, is used to measure the moving speed of the belts so that the printing speed of the digital printer matches the moving speed of the mailpiece in the print area.Type: ApplicationFiled: December 28, 2000Publication date: July 4, 2002Inventors: James A. Salomon, Steven E. Cohen, Cyndee Jonas, Eric A. Belec
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Patent number: 6409332Abstract: An ink-jet apparatus employs a platen having an array of vacuum ports that are each filtered. The filter is constructed to provide restricted-airflow rates which remain uniform when the platen is either fully covered or partially uncovered. The filter mechanism provides both airflow restrictions such that ink drop flight trajectories in the printing zone are unaffected, acoustic dampening of the vacuum pump is provided, and vacuum pressure is kept relatively high proximate the print media edges.Type: GrantFiled: February 28, 2000Date of Patent: June 25, 2002Assignee: Hewlett-Packard CompanyInventors: Robert M Yraceburu, Steve O Rasmussen, James O Beehler
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Patent number: 6315475Abstract: A drive belt system comprises a drive belt that is conductive. The drive belt system further comprises ground coupling means, such as a conductive brush or rubbing material, arranged for coupling the drive belt to ground. As a result, arcing in the drive belt system is reduced.Type: GrantFiled: November 22, 1999Date of Patent: November 13, 2001Assignee: Xerox CorporationInventors: Daniel L. Carter, Timothy M. Minerd
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Publication number: 20010014243Abstract: A belt drive for a machine for printing images on a flat printing material, having a continuous belt revolving during operation, includes a belt guide having stops for two protruding edges of the belt, the edges being oriented in a longitudinal direction of the belt and opposite one another in a transverse direction of the belt; and a machine for printing images on flat printing material having such a belt drive.Type: ApplicationFiled: February 9, 2001Publication date: August 16, 2001Inventors: Dieter Backer, Roland Hirth, Richard Mack, Ralf Weiser
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Patent number: 6254092Abstract: An ink-jet apparatus is disclosed having a vacuum type print media transport subsystem for moving the print media through a printing zone. A transport belt is provided with an array of perforations such that vacuum flow is restricted. The perforations only pass vacuum induced airflow through the belt when over vacuum ported platen regions.Type: GrantFiled: April 17, 2000Date of Patent: July 3, 2001Assignee: Hewlett-Packard CompanyInventors: Robert M Yraceburu, James O Beehler
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Patent number: RE44041Abstract: On a medium transporting surface, a dimple extending continuously from a transportation upstream end of a medium to a transportation downstream end are formed. Hereby, a leading end of the medium, after pulled into the dimples once, is transported in the pulled state. Therefore, it is prevented that the leading end of the medium is curled up by a conventional partition wall provided in the direction perpendicular to the medium transporting direction, so that it is possible to prevent a stain on the medium caused by contact with a recording head.Type: GrantFiled: June 17, 2010Date of Patent: March 5, 2013Assignee: Seiko Epson CorporationInventors: Takayuki Ishii, Yoshitaka Shimada