公开(公告)号：US20190143716A1

公开(公告)日：2019-05-16

申请号：US16189153

申请日：2018-11-13

Applicant: XEROX CORPORATION

Inventor： Anthony S. CONDELLO ,  Paul J. McCONVILLE ,  Jack T. LESTRANGE ,  Chu-Heng LIU

IPC: B41J11/00

CPC classification number: B41J11/002 ,  B41J2/0057

Abstract: A solid blanket receives a flood layer of very thin (e.g., about 10 μm or less) image receiving UV curable coating, which may be a clear, substantially clear, or tinted UV ink. A lower viscosity digital ink image may then be printed on top of the flood layer, for example by jetting UV ink on top of the flood layer. The lower viscosity UV digital ink sits on top of the thicker UV curable coating and maintains its location by surface tension interaction with the coating. The combination of ink and coating is then partially cured to a tacky state at which point it is transferred to print media via a conformable pressure nip. Since the lower viscosity jetted inks are not responsible for directly wetting the media, media latitude widens greatly. Further, no dampening fluid or fountain solution is needed to aid the transfer or the imaging.

公开(公告)号：US20180250929A1

公开(公告)日：2018-09-06

申请号：US15448365

申请日：2017-03-02

Applicant: XEROX CORPORATION

Inventor： Anthony S. CONDELLO ,  Peter J. KNAUSDORF ,  Jack T. LESTRANGE

IPC: B41F35/00 ,  B41F7/24 ,  B41F7/02

CPC classification number: B41F35/002 ,  B41F7/00 ,  B41F7/02 ,  B41F7/24 ,  B41F7/26 ,  B41F35/02 ,  B41M1/00 ,  B41M1/06 ,  B41M5/0256 ,  B41M5/03 ,  B41M7/0081 ,  B41N3/006 ,  B41P2227/70 ,  B41P2235/22

Abstract: A viscosity control unit provides improved and efficient residual ink removal from an imaging member following the transfer of the majority of the ink from the imaging member to a substrate, and prior to the application of a subsequent ink application to the imaging member. The viscosity control unit hardens the residual ink on the imaging member to produce a hardened residual ink. By increasing the viscosity of the residual ink before it is removed by a cleaning station, the removal of the residual ink from the imaging member becomes easier and more efficient.

公开(公告)号：US20220305819A1

公开(公告)日：2022-09-29

申请号：US17216261

申请日：2021-03-29

Applicant: XEROX CORPORATION

Inventor： Patrick Jun HOWE ,  John Patrick BAKER ,  Brian M. BALTHASAR ,  Glenn BATCHELOR ,  Anthony Salvatore CONDELLO ,  Ali R. DERGHAM ,  Timothy P. FOLEY ,  Douglas K. HERRMANN ,  Richard A. KALB ,  Peter John KNAUSDORF ,  Jason M. LeFEVRE ,  Jack T. LESTRANGE ,  Chu-Heng LIU ,  Paul J. McCONVILLE ,  Seemit PRAHARAJ ,  Palghat S. RAMESH ,  Joseph C. SHEFLIN ,  Emmett James SPENCE ,  Robert Jian ZHANG ,  Megan ZIELENSKI

IPC: B41J11/00 ,  B41J2/01

Abstract: A printing system comprises a print fluid deposition assembly, a media transport device, and an air flow control system. The print fluid deposition assembly comprises a carrier plate and a printhead arranged to eject a print fluid through an opening of the carrier plate to a deposition region. The media transport device holds a print medium against the movable support surface by vacuum suction and transports the print medium through the deposition region. The air flow control system comprises an air supply unit comprising air flow guide structure extending into the opening of the carrier plate between the carrier plate and the printhead to flow air through the opening. The air flow control system controls the air supply unit to selectively flow the air based on a location of a print medium relative to the printhead.

公开(公告)号：US20220305815A1

公开(公告)日：2022-09-29

申请号：US17216175

申请日：2021-03-29

Applicant: XEROX CORPORATION

Inventor： Douglas K. HERRMANN ,  Linn C. HOOVER ,  Patrick Jun HOWE ,  Joseph C. SHEFLIN ,  Robert Jian ZHANG ,  John Patrick BAKER ,  Brian M. BALTHASAR ,  Glenn BATCHELOR ,  Anthony Salvatore CONDELLO ,  Ali R. DERGHAM ,  Timothy P. FOLEY ,  Richard A. KALB ,  Peter John KNAUSDORF ,  Jason M. LeFEVRE ,  Jack T. LESTRANGE ,  Chu-Heng LIU ,  Paul J. McCONVILLE ,  Seemit PRAHARAJ ,  Palghat S. RAMESH ,  Erwin RUIZ ,  Emmett James SPENCE ,  Rachel Lynn TANCHAK ,  Kareem TAWIL ,  Carlos M. TERRERO ,  Megan ZIELENSKI

IPC: B41J11/00

Abstract: A printing system comprises a print fluid deposition assembly, a media transport device, and an air flow control system. The print fluid deposition assembly comprises a carrier plate and a printhead arranged to eject a print fluid through an opening of the carrier plate to a deposition region. The media transport device comprises a movable support surface to transport a print medium along a process direction through the deposition region, the media transport device holding the print medium against the movable support surface by vacuum suction. The air flow control system is arranged to selectively flow air through the opening of the carrier plate between the carrier plate and the printhead based on a location of a print medium transported by the media transport device relative to the printhead.

公开(公告)号：US20220305806A1

公开(公告)日：2022-09-29

申请号：US17216192

申请日：2021-03-29

Applicant: XEROX CORPORATION

Inventor： Joseph C. SHEFLIN ,  Anthony Salvatore CONDELLO ,  Peter John KNAUSDORF ,  Jack T. LESTRANGE ,  Palghat S. RAMESH

IPC: B41J2/21 ,  B41J2/045

Abstract: A printing system comprises a print fluid deposition assembly, a media transport device, and an air flow control system. The print fluid deposition assembly comprises a carrier plate and a printhead to eject a print fluid through an opening of the carrier plate to a deposition region. The media transport device holds a print medium against the movable support surface by vacuum suction and transports the print medium through the deposition region. The air flow control system comprises an air supply unit comprising an airflow guide structure extending into the opening of the carrier plate, the airflow guide structure configured to flow air at a direction aimed under the printhead and at an oblique angle relative to the movable support surface. The air flow control system controls the air supply unit to selectively flow the air based on a location of a print medium relative to the printhead.

公开(公告)号：US20220219445A1

公开(公告)日：2022-07-14

申请号：US17149161

申请日：2021-01-14

Applicant: Xerox Corporation

Inventor： Anthony S. CONDELLO ,  Jack T. LESTRANGE ,  Joseph C. SHEFLIN ,  Brian M. BALTHASAR ,  Palghat S. RAMESH

IPC: B41F31/13

Abstract: An optical gloss meter above an imaging member surface measures fountain solution surface gloss on the imaging member surface in real-time during a printing operation. The measured gloss corresponds to a thickness of the fountain solution layer and may be used in a feedback loop to actively control fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.

公开(公告)号：US20190329582A1

公开(公告)日：2019-10-31

申请号：US15962063

申请日：2018-04-25

Applicant: Xerox Corporation

Inventor： Jack T. LESTRANGE ,  Peter J. KNAUSDORF ,  Joseph C. SHEFLIN

IPC: B41N3/08 ,  B41M1/06 ,  B41F7/02 ,  B41F31/18

Abstract: An intermediate roller positioned between a fountain solution vapor supply and an imaging member decouples fountain solution vapor deposition from the surface of the imaging member. The intermediate roller may be temperature controlled. A uniform layer of fountain solution condenses onto the surface of the temperature controlled intermediate roller regardless of the imaging blanket temperature. The fountain solution condensate layer deposited onto the intermediate roller splits and deposits a thin uniform layer of fountain solution liquid onto the imaging member surface. This liquid layer split may be independent of the temperature of the imaging member surface, resulting in a uniform layer of fountain solution on the imaging blanket for better imaging quality. Remotely locating the vaporizing chamber away from the imaging member prevents undesired heat transfer from a hot vaporizing chamber/baffle to the imaging member surface.