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公开(公告)号：DE60045793D1
公开(公告)日：2011-05-12
申请号：DE60045793
申请日：2000-11-29
Applicant: XEROX CORP
Inventor： TORPEY PETER A , HULL VIRGIL JOSEPH , SMITH GLENN K , DUDEK LESLEY P
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公开(公告)号：DE60001625T2
公开(公告)日：2003-09-11
申请号：DE60001625
申请日：2000-11-29
Applicant: XEROX CORP
Inventor： TORPEY PETER A , HULL VIRGIL JOSEPH , SMITH GLENN K , DUDEK LESLEY P
Abstract: The present invention is directed to a method for differentially processing image types within a document image to enhance the quality of an image on a receiving medium. In one aspect of the invention, the method begins by receiving document image data (170) including one or more image regions. The method determines (174) for each image region whether the region includes any image data corresponding to a first image type. The method then prints regions including image data corresponding to the first image type according to a first pixel management process and prints regions not including image data corresponding to the first image type according to a second pixel management process.
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公开(公告)号：DE60001906D1
公开(公告)日：2003-05-08
申请号：DE60001906
申请日：2000-11-29
Applicant: XEROX CORP
Inventor： TORPEY PETER A , HULL VIRGIL JOSEPH , SMITH GLENN K , DUDEK LESLEY P
IPC: B41J2/21 , B41J2/485 , G06K15/02 , G06K15/10 , H04N1/23 , H04N1/46 , H04N1/58 , H04N1/60 , B41J2/205
Abstract: The present invention is directed to a method for differentially processing image types within a document image to enhance the quality of an image on a receiving medium. In one aspect of the invention, the method begins by receiving document image data (170) including one or more image regions. The method determines (174) for each image region whether the region includes any image data corresponding to a first image type. The method then prints regions including image data corresponding to the first image type according to a first pixel management process and prints regions not including image data corresponding to the first image type according to a second pixel management process.
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公开(公告)号：CA1262838A
公开(公告)日：1989-11-14
申请号：CA514293
申请日：1986-07-21
Applicant: XEROX CORP
Inventor： TORPEY PETER A , MARKHAM ROGER G
Abstract: An improved thermal ink jet printhead is disclosed for ejecting and propelling ink droplets on demand along a flight path toward a recording medium spaced therefrom in response to receipt of electrical input signals representing digitized data signals. Each printhead has one or more capillary filled ink channels. The channels have a droplet emitting nozzle on one end and connect to an ink supplying manifold on the other end. Each channel has a heating element upstream from the nozzle that is located in a recess. The heating elements are selectively addressable with a current pulse for substantially instantaneous vaporization of the ink contacting the addressed heating element to produce a bubble that expels a droplet of ink during its growth and collapse. The recess walls containing the heating elements prevent the lateral movement of the bubbles through the nozzle and therefore the sudden release of vaporized ink to the atmosphere, known as blowout which causes ingestion of air and interrupts the printhead operation.
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公开(公告)号：DE60001625D1
公开(公告)日：2003-04-17
申请号：DE60001625
申请日：2000-11-29
Applicant: XEROX CORP
Inventor： TORPEY PETER A , HULL VIRGIL JOSEPH , SMITH GLENN K , DUDEK LESLEY P
Abstract: The present invention is directed to a method for differentially processing image types within a document image to enhance the quality of an image on a receiving medium. In one aspect of the invention, the method begins by receiving document image data (170) including one or more image regions. The method determines (174) for each image region whether the region includes any image data corresponding to a first image type. The method then prints regions including image data corresponding to the first image type according to a first pixel management process and prints regions not including image data corresponding to the first image type according to a second pixel management process.
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Patent Agency Ranking
公开(公告)号：BR0006253A
公开(公告)日：2001-09-18
申请号：BR0006253
申请日：2000-12-04
Applicant: XEROX CORP
Inventor： CURTIS CHRISTOPHER R , SMITH GLENN K , HULL VIRGIL JOSEPH , TORPEY PETER A
Abstract: The present invention provides a method for processing color image data to maintain edge quality in an image recorded on a receiving medium. The method includes receiving a target pixel comprising multiple separation pixels, each separation being associated with a separate color plane and having at least three states, a first state corresponding to depositing no ink, a second state corresponding to depositing one ink drop, and a third state corresponding to depositing more than one ink drop; determining if the target pixel is within a black border region near a black/non-printed interface; and if so, setting the separation pixel associated with a black color plane to a selected black pixel state.
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公开(公告)号：BR0006251A
公开(公告)日：2001-09-18
申请号：BR0006251
申请日：2000-12-04
Applicant: XEROX CORP
Inventor： SMITH GLEEN K , TORPEY PETER A , HULL VIRGIL JOSEPH , CURTIS CHRISTOPHER R
Abstract: The present invention provides a method for processing color image data for printing on an inkjet printer to reduce intercolor bleeding in an image recorded on a receiving medium. The method receives a target pixel comprising multiple separation pixels, wherein each separation is associated with a separate color plane and has at least three states, a first state corresponding to depositing no ink drops, a second state corresponding to depositing one ink drop, and a third state corresponding to depositing more than one ink drop. The method further includes determining if the target pixel is within a black border region near a black/color interface or within a color border region near a black/color interface. If the target pixel is within a black border region, the method replaces the target pixel with a black border output pixel derived from a black pixel modification pattern identifying an arrangement of separation pixels to deposit approximately one drop for each pixel location in the black pixel modification pattern. Similarly, if the target pixel is within a color border region near a black/color interface, the method replaces the target pixel with a color border pixel derived from a color pixel modification pattern identifying an arrangement of separation pixels for each non-black color plane that deposits approximately one drop for each pixel location.
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公开(公告)号：BR0006250A
公开(公告)日：2001-09-18
申请号：BR0006250
申请日：2000-12-04
Applicant: XEROX CORP
Inventor： TORPEY PETER A , HULL VIRGIL JOSEPH , SMITH GLENN K , DUDEK LESLEY P
Abstract: The present invention is directed to a method for differentially processing image types within a document image to enhance the quality of on an image on a receiving medium. In one aspect of the invention, the method begins by receiving document image data (170) including one or more image regions. The method determines (174) for each image region whether the region includes any image data corresponding to a first image type. The method then prints regions including image data corresponding to the first image type according to a first pixel management process and prints regions not including image data corresponding to the first image type according to a second pixel management process.
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公开(公告)号：DE60001906T2
公开(公告)日：2003-11-06
申请号：DE60001906
申请日：2000-11-29
Applicant: XEROX CORP
Inventor： TORPEY PETER A , HULL VIRGIL JOSEPH , SMITH GLENN K , DUDEK LESLEY P
IPC: B41J2/21 , B41J2/485 , G06K15/02 , G06K15/10 , H04N1/23 , H04N1/46 , H04N1/58 , H04N1/60 , B41J2/205
Abstract: The present invention is directed to a method for differentially processing image types within a document image to enhance the quality of an image on a receiving medium. In one aspect of the invention, the method begins by receiving document image data (170) including one or more image regions. The method determines (174) for each image region whether the region includes any image data corresponding to a first image type. The method then prints regions including image data corresponding to the first image type according to a first pixel management process and prints regions not including image data corresponding to the first image type according to a second pixel management process.
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公开(公告)号：DE69617594T2
公开(公告)日：2002-05-02
申请号：DE69617594
申请日：1996-09-20
Applicant: XEROX CORP
Inventor： MANTELL DAVID A , O'NEILL JAMES F , TELLIER THOMAS A , DESHPANDE NARAYAN V , KNEEZEL GARY A , TORPEY PETER A , HARRINGTON STEVEN J
Abstract: A liquid ink printing apparatus printing images includes a printhead (20) having a plurality of nozzles (74) wherein a single power pulse causes two or more nozzles to eject ink simultaneously. The printhead includes an ink directing element (78) having a plurality of ink conduits coupled to an array of spaced nozzles and a transducer element (77) aligned with and mated to the ink directing element. The transducers are spaced a distance apart and each transducer is substantially aligned with at least two or more of the nozzles. The printhead is stepped in a direction transverse to the array of spaced nozzles a stepping distance approximately equal to or less than the distance between transducers. The ink directing element includes a silicon wafer having etched ink conduits or channels holding ink for ejection through the nozzles connected thereto. In one embodiment, each transducer is cooperatively associated with one channel having a fork member coupled to two or more nozzles or is cooperatively associated with two or more channels wherein each channel is connected to one or more nozzles.
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