公开(公告)号：US11872768B2

公开(公告)日：2024-01-16

申请号：US17477371

申请日：2021-09-16

Applicant: Xerox Corporation

Inventor： Stuart A. Schweid ,  Martin L. Frachioni ,  David A. Vankouwenberg ,  Christopher Mieney

IPC: B29C64/393 ,  B29C64/165 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y10/00

CPC classification number: B29C64/393 ,  B29C64/165 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00

Abstract: An MFD is disclosed. For example, the MFD includes a color printhead to dispense color printing fluid, an enhancement printhead to dispense a three-dimensional (3D) print material, a processor and a non-transitory computer-readable medium storing a plurality of instructions. The instructions when executed by the processor cause the processor to perform operations that include printing a two-dimensional (2D) image on a substrate and printing a 3D object on the 2D image printed on the substrate such that colors of the 2D image provide a desired color for a desired portion of the 3D object.

公开(公告)号：US11518083B2

公开(公告)日：2022-12-06

申请号：US16700479

申请日：2019-12-02

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Stuart A. Schweid

IPC: B29C64/106 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/20 ,  B29C64/112 ,  B33Y10/00 ,  B29C64/386

Abstract: A method for operating a three-dimensional object printer compensates for inoperative ejectors. The method identifies image data values associated with an inoperative ejector that stored in a memory with other image data values for a three-dimensional object to be printed by the three-dimensional object printer. The method replaces the image data values associated with the inoperative ejector with image data values associated with an operative ejector that correspond to a material that is different than a material ejected by the inoperative ejector and operates a plurality of ejectors with reference to the other image data values and the replaced image data values to enable the operative ejector to eject drops of the material that is different than the material ejected by the inoperative ejector into the three-dimensional object at positions where the inoperative ejector would have ejected material.

公开(公告)号：US11483435B2

公开(公告)日：2022-10-25

申请号：US17129811

申请日：2020-12-21

Applicant: Xerox Corporation

Inventor： Stuart A. Schweid ,  Martin L. Frachioni ,  David A. Vankouwenberg ,  David M. Gurak ,  Christopher Mieney

IPC: H04N1/00 ,  G06N20/00

Abstract: A method is disclosed. For example, the method executed by a processor of a multi-function device (MFD) includes tracking a machine state of the MFD, predicting a potential defect based on a determination that the machine state is associated with a defect class of a plurality of different defect classes, determining a maintenance routine associated with the defect class, and executing the maintenance routine to prevent the potential defect.

公开(公告)号：US10919310B1

公开(公告)日：2021-02-16

申请号：US16704370

申请日：2019-12-05

Applicant: Xerox Corporation

Inventor： Stuart A. Schweid ,  Raymond J. Clark ,  David J. Metcalfe

IPC: B41J2/21 ,  B41J29/393 ,  B41J2/01 ,  B41J2/36

Abstract: A method of printer operation identifies inkjets to operate in each scanline to eject sneeze drops or, in an alternative approach, identifies the cross-process direction scanlines within a page to be printed by the printer where each inkjet ejects sneeze drops. The methods use a binary grayscale code counter that generates a sequence of binary grayscale code numbers and every other output of the sequence is bit reversed to spread the sneeze drops over the pages of the printer output so the sneeze drops are not perceptible to a human observer.

公开(公告)号：US10556419B2

公开(公告)日：2020-02-11

申请号：US15289448

申请日：2016-10-10

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Stuart A. Schweid

IPC: B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/20 ,  B29C64/106 ,  B29C64/112 ,  B29C64/386

Abstract: A method for operating a three-dimensional object printer compensates for inoperative ejectors. The method identifies image data values associated with an inoperative ejector that stored in a memory with other image data values for a three-dimensional object to be printed by the three-dimensional object printer. The method replaces the image data values associated with the inoperative ejector with image data values associated with an operative ejector that correspond to a material that is different than a material ejected by the inoperative ejector and operates a plurality of ejectors with reference to the other image data values and the replaced image data values to enable the operative ejector to eject drops of the material that is different than the material ejected by the inoperative ejector into the three-dimensional object at positions where the inoperative ejector would have ejected material.

公开(公告)号：US20180229447A1

公开(公告)日：2018-08-16

申请号：US15434689

申请日：2017-02-16

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Stuart A. Schweid

IPC: B29C67/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00

CPC classification number: B33Y10/00 ,  B29C64/112 ,  B29C64/386 ,  B29C64/393 ,  B29K2105/0058 ,  B29K2995/002 ,  B33Y30/00 ,  B33Y50/02 ,  H04N1/60

Abstract: A three-dimensional object printer has a controller that operates pluralities of ejectors ejecting drops of different materials having different colors, at least one color of which is white, to produce objects with different levels of color saturation. The controller operates the pluralities of ejectors with reference to a function of a sum of an average number of drops per voxel in each layer, a target value of an average number of drops per voxel of colorants other than white in each layer, and a distance from a closest surface of the object for each material ejected by the ejectors. At a predetermined distance from a closest surface and greater, the controller operates the pluralities of ejectors to form voxels in layers of the object with only clear and white drops. At distances less than the predetermined distance, the number of clear drops increases and the number of white drops decreases.

公开(公告)号：US09561644B1

公开(公告)日：2017-02-07

申请号：US15074137

申请日：2016-03-18

Applicant: Xerox Corporation

Inventor： Raymond J. Clark ,  Roger L. Triplett ,  Stuart A. Schweid ,  Martin L. Frachioni

IPC: B41J2/045 ,  B41J2/21

CPC classification number: B41J2/2139 ,  B41J2/2142 ,  B41J2/2146

Abstract: A method and system compensates for malfunctioning inkjets using contone values for an image prior to the contone values being rendered for printing of the image. The method generates contone values for color space components in a compensation level for each malfunctioning inkjet. The contone values in each compensation level are modified with reference to a profile selected for each malfunctioning inkjet and with reference to the modification of the contone values in the vicinity of each malfunctioning with the compensative level. The modified contone values of each compensation level are merged with the contone values in the vicinity of each malfunctioning inkjet. The contone values are then rendered and used to operate inkjets for forming an ink image on an ink receiving member.

Abstract translation: 一种方法和系统在渲染图像的连续色调值之前，使用图像的连续色调值来补偿出现故障的喷墨打印机。 该方法为每个故障喷墨的补偿级别生成颜色空间分量的连续色值。 参考每个故障喷墨选择的轮廓，并参照每次故障补偿水平附近的连续失真值的修改，修改每个补偿级别中的连续色调值。 每个补偿水平的修改的连续色调值与每个故障喷墨机附近的连续色调值合并。 然后将连续色调值渲染并用于操作用于在油墨接收构件上形成油墨图像的喷墨头。

公开(公告)号：US09300842B1

公开(公告)日：2016-03-29

申请号：US14571441

申请日：2014-12-16

Applicant: Xerox Corporation

Inventor： Stuart A. Schweid

IPC: H04N1/409 ,  G06K5/00 ,  G06K7/00 ,  H04N1/405 ,  G06T7/00

CPC classification number: H04N1/4092 ,  G06T7/13 ,  G06T2207/10004 ,  H04N1/405 ,  H04N2201/0094

Abstract: Methods and systems for determining an edge pixel as a function of both the local video and the spatial location. Several logical gating functions, which are solely mappings of image position, are generated. Edges are marked only at locations where the gating function is true (e.g., or active) and not at other image locations. In order for a pixel to be tagged as an edge pixel, both its surrounding pixels values must be detected as an edge and the gating function must be active. Each gate output can be determined by employing either the image pixel count or the image scanline count. Different gating functions can be associated with different edge types to ensure the edge modulation pattern occurs orthogonal to the edge direction.

Abstract translation: 用于确定作为本地视频和空间位置的函数的边缘像素的方法和系统。 生成单独映像位置的逻辑门控功能。 边缘仅在门控功能为真（例如或活动）的位置而不在其他图像位置处标记。 为了将像素标记为边缘像素，其周围像素值必须被检测为边缘，并且门控功能必须处于活动状态。 可以通过采用图像像素计数或图像扫描线计数来确定每个栅极输出。 不同的门控功能可以与不同的边缘类型相关联，以确保边缘调制模式正交于边缘方向。

公开(公告)号：US20140169469A1

公开(公告)日：2014-06-19

申请号：US13718030

申请日：2012-12-18

Applicant: XEROX CORPORATION

Inventor： Edgar A. Bernal ,  Stuart A. Schweid ,  Orhan Bulan

IPC: H04N7/26

CPC classification number: H04N19/521 ,  H04N19/57

Abstract: The method facilitates efficient motion estimation for video sequences captured with a stationary camera with respect to an object. For video captured with this type of camera, a main cause of changes between adjacent frames corresponds to object motion. In this setting the output from the motion compensation stage is the block matching algorithm describing the way pixel blocks move between adjacent frames. For video captured with cameras mounted on moving vehicles (e.g. school buses, public transportation vehicles and police cars), the motion of the vehicle itself is the largest source of apparent motion in the captured video. In both cases, the encoded set of motion vectors is a good descriptor of apparent motion of objects within the field of view of the camera.

Abstract translation: 该方法有助于相对于对象利用固定照相机拍摄的视频序列的有效运动估计。 对于使用这种相机拍摄的视频，相邻帧之间变化的主要原因对应于物体运动。 在该设置中，来自运动补偿级的输出是描述像素块在相邻帧之间移动的方式的块匹配算法。 对于搭载在移动车辆（例如校车，公共交通车辆和警车）上的摄像机拍摄的视频，车辆本身的运动是所捕获视频中最大的明显动作来源。 在这两种情况下，编码的运动矢量集合是在相机视场内的物体的明显运动的良好描述符。

公开(公告)号：US20140146102A1

公开(公告)日：2014-05-29

申请号：US13685315

申请日：2012-11-26

Applicant: XEROX CORPORATION

Inventor： Howard A. Mizes ,  Joseph C. Sheflin ,  Michael J. Levy ,  Charles D. Rizzolo ,  Stuart A. Schweid

IPC: B41J2/07

CPC classification number: B41J2/07 ,  B41J2/2146 ,  B41J11/0065

Abstract: A method of operating a printer includes identifying a region of a print medium located between marks formed by a first plurality of inkjets in the printer and an edge of the print medium. The printer activates a second plurality of inkjets to print ink drops into the region during a printing operation. The method enables full-bleed or near full-bleed printing for different media sizes.

Abstract translation: 一种操作打印机的方法包括识别位于由打印机中的第一多个喷墨喷嘴形成的标记和打印介质的边缘之间的打印介质的区域。 打印机激活第二多个喷墨打印头，以在打印操作期间将墨滴打印到该区域中。 该方法可以实现不同介质尺寸的全渗或近全渗。