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公开(公告)号：US20200039251A1
公开(公告)日：2020-02-06
申请号：US16050376
申请日：2018-07-31
Applicant: Xerox Corporation
Inventor： Paul M. Fromm , Erwin Ruiz , Linn C. Hoover , David A. VanKouwenberg
IPC: B41J11/057 , B41J11/00
Abstract: A printer includes a printhead assembly and a dryer. A transport mechanism conveys the printed media in a downstream direction between the printhead assembly and a dryer and between the dryer and an output device. The transport mechanism includes an electric field-generating transport member. The transport member includes a continuous belt supported by rollers. The belt is driven to transport the printed media on an upper surface of the belt. The belt includes an electrically-insulating inner layer and an electrically-insulating outer layer. First and second sets of electrical conductors are positioned intermediate the inner and outer layers. Electrical conductors in the second set are grounded and alternate with electrical conductors in the first set, A charging unit selectively applies a voltage to only a subset of the electrical conductors in the first set at a time, to electrostatically attract the printed media to the upper surface of the belt.
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公开(公告)号：US09884496B1
公开(公告)日：2018-02-06
申请号：US15465778
申请日：2017-03-22
Applicant: Xerox Corporation
Inventor： David A. VanKouwenberg
CPC classification number: B41J13/0009 , B41J3/60 , B41J11/0005 , G03G15/6576
Abstract: A decurler is configured for use in an aqueous inkjet printer to monitor ink contamination of the indent roller in the decurler and generate a signal that maintenance is required prior to the printer beginning to produce wrinkled media sheets by the ink contamination on the indent roller. A reflective sensor is mounted on a shaft for bidirectional movement to sweep the length of the indent roller and generate electrical signals indicative of the presence or absence of contamination on the indent roller. The controller receiving signals from the reflective sensor compares the signals from the reflective sensor to a predetermined threshold prior to commencing monitoring of the indent roller to determine positions where the sensor is opposite the indent roller and positons where the sensor is opposite a frame in the printer.
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公开(公告)号：US09782973B2
公开(公告)日：2017-10-10
申请号：US14934245
申请日：2015-11-06
Applicant: Xerox Corporation
Inventor： Jason M. LeFevre , Steven M. Russel , David A. VanKouwenberg , Timothy P. Foley , Frank B. Tamarez Gomez
CPC classification number: B41J2/17513 , B41J2/175 , B41J29/38 , B41J2002/17516
Abstract: Printer structures include a controller, a marking engine operatively (meaning directly or indirectly) connected to the controller, and a container connected to the marking engine. The marking engine applies marking material to print media, and the container stores that marking material. The container can include a flexible bladder storing the marking material, and an actuator structure operatively connected to the controller. The actuator structure contacts the flexible bladder and periodically moves portions of the bladder to periodically mix the marking material as controlled by the controller (based on the marking engine being idle for a previously established amount of time). Alternatively, the actuator structure contacts the container can periodically rotate the container to periodically mix the marking material as controlled by the controller.
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44.发明授权Release agent composition for solid inkjet imaging systems for improved coefficient of friction 有权用于固体喷墨成像系统的脱模剂组合物，用于改善摩擦系数公开(公告)号：US09216588B2
公开(公告)日：2015-12-22
申请号：US14814218
申请日：2015-07-30
Applicant: Xerox Corporation
Inventor： Jason M. LeFevre , Paul J. McConville , Santokh S. Badesha , James M. Chappell , David A. VanKouwenberg , Anthony S. Condello , Daniel J. McVeigh
CPC classification number: B41J2/21 , B41J2/14 , B41J2/2107 , B41J2/2114 , C10M105/76 , C10M107/50 , C10M2229/0415 , C10M2229/0525 , C10N2230/06 , C10N2240/06
Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, the release agent comprising a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl; wherein the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.3 or more to the print media, resulting in improved finishing and converting equipment interaction.
Abstract translation: 与标准硅油相比显示降低的摩擦系数的功能性胺释放剂，所述脱模剂包含聚二甲基硅氧烷油和选自侧基丙胺和N-（2-氨基乙基）-3-氨基丙基侧基的官能胺; 其中官能胺对聚二甲基硅油的浓度约为0.0006meq / g。 根据某些实施方案，官能胺脱模剂可操作以赋予印刷介质约0.3或更大的摩擦系数，从而改进整理和转化设备相互作用。
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45.发明授权公开(公告)号：US09127230B2
公开(公告)日：2015-09-08
申请号：US13744820
申请日：2013-01-18
Applicant: Xerox Corporation
Inventor： Jason M. LeFevre , Paul J. McConville , Santokh S. Badesha , James M. Chappell , David A. VanKouwenberg , Anthony S. Condello , Daniel J. McVeigh
IPC: C10M105/76 , B41J2/21 , C10M107/50
CPC classification number: B41J2/21 , B41J2/14 , B41J2/2107 , B41J2/2114 , C10M105/76 , C10M107/50 , C10M2229/0415 , C10M2229/0525 , C10N2230/06 , C10N2240/06
Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, the release agent comprising a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl; wherein the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.3 or more to the print media, resulting in improved finishing and converting equipment interaction.
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Patent Agency Ranking
公开(公告)号：US12246531B2
公开(公告)日：2025-03-11
申请号：US18156135
申请日：2023-01-18
Applicant: Xerox Corporation
Inventor： Stuart A. Schweid , David A. VanKouwenberg , Martin L Frachioni , Linn C. Hoover
Abstract: A method of inkjet printer operation produces a security pattern in a printed document. In one embodiment, the security feature is printed in the document as a line target with printheads that have been rotated so the rows of inkjets in the printhead are not aligned in the cross-process direction. The line target in the original document has a frequency response to that differs from a copy formed with a device that does not have rotated printheads. In another embodiment, a sneeze pattern is modified by shifting pixels of at least one color separation in the sneeze pattern in a cross-process direction or a process direction. A copy is identified because it does not contain the shifted pixels.
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公开(公告)号：US20240239115A1
公开(公告)日：2024-07-18
申请号：US18156135
申请日：2023-01-18
Applicant: Xerox Corporation
Inventor： Stuart A. Schweid , David A. VanKouwenberg , Martin L. Frachioni , Linn C. Hoover
CPC classification number: B41J11/008 , B41J2/04505 , B41J2/2114
Abstract: A method of inkjet printer operation produces a security pattern in a printed document. In one embodiment, the security feature is printed in the document as a line target with printheads that have been rotated so the rows of inkjets in the printhead are not aligned in the cross-process direction. The line target in the original document has a frequency response to that differs from a copy formed with a device that does not have rotated printheads. In another embodiment, a sneeze pattern is modified by shifting pixels of at least one color separation in the sneeze pattern in a cross-process direction or a process direction. A copy is identified because it does not contain the shifted pixels.
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公开(公告)号：US11850875B2
公开(公告)日：2023-12-26
申请号：US17190498
申请日：2021-03-03
Applicant: Xerox Corporation
Inventor： Linn C. Hoover , Erwin Ruiz , David A. VanKouwenberg , Paul M. Fromm , Jeffrey J. Bradway
CPC classification number: B41M3/005 , B05D5/06 , B05D7/587 , B31D1/027 , B41M3/001 , B41M7/009 , B41M7/0081 , G06Q30/06 , G09F3/0291 , B41M2205/40
Abstract: A method includes printing, by one or more printer heads of the printing system, a reactive layer onto print media. The method also includes printing, by the one or more printer heads, a determined number of transmission layers and a determined number of barrier layers in alternation with one another. At least a portion of the reactive layer is configured to migrate through the transmission layers. The method further includes printing, by the one or more printer heads, a reactant layer that is configured to change color responsive to a reaction that occurs between the reactant layer and the reactive layer upon migration of the reactive layer through the determined number of transmission layers. The reaction is configured to occur on a received expiration date.
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公开(公告)号：US20230034213A1
公开(公告)日：2023-02-02
申请号：US17391265
申请日：2021-08-02
Applicant: Xerox Corporation
Inventor： Jason M. LeFevre , Douglas K. Herrmann , Chu-Heng Liu , Seemit Praharaj , David A. VanKouwenberg , Linn C. Hoover
Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a vessel having a receptacle that holds melted metal. The vessel has a divider that prevents metal dross formed at a solid metal inlet of the receptacle to migrate to a portion of the receptacle where a melted metal level sensor directs light.
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公开(公告)号：US11077679B2
公开(公告)日：2021-08-03
申请号：US16703656
申请日：2019-12-04
Applicant: Xerox Corporation
Inventor： David A. VanKouwenberg , Seemit Praharaj , Michael J. Levy , Douglas K. Herrmann , Paul McConville , Chu-Heng Liu , Linn C. Hoover , Jason M. Lefevre
Abstract: A marker transport system and a method of operating the marker transport system can include one or more print heads and a marker transport platen upon which a sheet of media moves. The transport platen can include airflow sections comprising process-direction slots. The plates can move in a cross-process direction, and can control airflow in an area under the print heads. The one or more plates in a first position can allow for airflow when the sheet of media is located at the first position and in a second position can block the airflow at the second position. A vacuum can be provided under the sheet of media as the sheet of media traverses a print path across the marker transport platen. A no-vacuum inter-document zone can be provided, which moves along with the sheet of media under the one or more print heads.
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