公开(公告)号：US09415546B2

公开(公告)日：2016-08-16

申请号：US14167729

申请日：2014-01-29

Applicant: Xerox Corporation

Inventor： Brian R. Conrow ,  Howard A. Mizes ,  Paul A. Hosier ,  Jeffrey J. Folkins ,  Robert J. Kleckner

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

CPC classification number: B29C67/0088 ,  B29C64/112 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A printer uses closed loop control to keep material drops ejected by a printhead within a predetermined range. The printer forms at least two objects on a support member and then operates a specular sensor array to obtain image data of the two objects on the support member. The two objects have different predetermined heights to enable a controller in the printer to identify the mass or volume of the material drops forming the objects to adjust operational parameters of the printer to maintain the mass or volume of the material drops in the predetermined range.

Abstract translation: 打印机使用闭环控制来将打印头喷射的物料滴保持在预定范围内。 打印机在支撑构件上形成至少两个物体，然后操作镜面传感器阵列以获得支撑构件上的两个物体的图像数据。 两个物体具有不同的预定高度，以使得打印机中的控制器能够识别形成物体的物料滴的质量或体积，以调整打印机的操作参数，以将物料的质量或体积保持在预定范围内。

公开(公告)号：US20150210011A1

公开(公告)日：2015-07-30

申请号：US14167729

申请日：2014-01-29

Applicant: Xerox Corporation

Inventor： Brian R. Conrow ,  Howard A. Mizes ,  Paul A. Hosier ,  Jeffrey J. Folkins ,  Robert J. Kleckner

IPC: B29C67/00

CPC classification number: B29C67/0088 ,  B29C64/112 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A printer uses closed loop control to keep material drops ejected by a printhead within a predetermined range. The printer forms at least two objects on a support member and then operates a specular sensor array to obtain image data of the two objects on the support member. The two objects have different predetermined heights to enable a controller in the printer to identify the mass or volume of the material drops forming the objects to adjust operational parameters of the printer to maintain the mass or volume of the material drops in the predetermined range.

Abstract translation: 打印机使用闭环控制来将打印头喷射的物料滴保持在预定范围内。 打印机在支撑构件上形成至少两个物体，然后操作镜面传感器阵列以获得支撑构件上的两个物体的图像数据。 两个物体具有不同的预定高度，以使得打印机中的控制器能够识别形成物体的物料滴的质量或体积，以调整打印机的操作参数，以将物料的质量或体积保持在预定范围内。

公开(公告)号：US10052823B2

公开(公告)日：2018-08-21

申请号：US14509827

申请日：2014-10-08

Applicant: Xerox Corporation

Inventor： Howard A. Mizes ,  Brian R. Conrow ,  Patricia J. Donaldson ,  Jeffrey J. Folkins ,  Paul A. Hosier ,  Robert J. Kleckner

IPC: B29C67/00 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  G06F19/00 ,  B29L31/00 ,  B29K101/12

CPC classification number: B29C64/386 ,  B29C64/106 ,  B29C64/112 ,  B29C64/393 ,  B29K2101/12 ,  B29L2031/772 ,  B33Y10/00 ,  B33Y50/02

Abstract: A three-dimensional object printer ejects drops of a build material from a plurality of ejectors in a first printhead to form an object on a first region of a member and ejects drops of a support material from a plurality of ejectors in a second printhead to support the object on the first region of the member. The second printhead ejects drops of the support material onto a second region of the member that is separate from the first region to form a substrate layer. The first printhead ejects drops of the build material onto the substrate layer to form a printed test pattern. An image sensor generates image data of the printed test pattern to identify an inoperable ejector in the first printhead.

公开(公告)号：US20150352872A1

公开(公告)日：2015-12-10

申请号：US14298232

申请日：2014-06-06

Applicant: Xerox Corporation

Inventor： Brian R. Conrow ,  Howard A. Mizes ,  Paul A. Hosier ,  Jeffrey J. Folkins ,  Robert J. Kleckner

IPC: B41J29/393

CPC classification number: B41J29/393 ,  B29C64/112 ,  B29C64/386 ,  B33Y50/02

Abstract: A printer compensates for printing errors occurring during production of the layers for the formation of an object in a three-dimensional printer. The printer includes an optical sensor that generates data corresponding to edges of each layer of the object after each layer is printed. Differences between the raster data used to eject the material to form a layer and the data received from the optical sensor are used to modify the raster data that operates a printhead to form a next layer in the object.

Abstract translation: 打印机补偿在三维打印机中形成物体的层的生产期间发生的打印错误。 打印机包括光学传感器，其在印刷每层之后产生对应于物体每层的边缘的数据。 用于弹出材料以形成层的光栅数据与从光学传感器接收的数据之间的差异用于修改操作打印头以形成对象中的下一层的光栅数据。

公开(公告)号：US09086648B1

公开(公告)日：2015-07-21

申请号：US14183793

申请日：2014-02-19

Applicant: XEROX CORPORATION

Inventor： Brian R. Conrow ,  Douglas R. Taylor

IPC: G03G15/10 ,  G03G15/08

CPC classification number: G03G15/0855 ,  G03G15/5041

Abstract: Devices and methods detect an amount of toner on a photoreceptor caused by a printing process, and calculate a reload signal using a processor. The reload signal shows the amount of toner being reloaded on a donor roll from a toner container to replace the toner being removed from the donor roll during the printing process (as detected by an optical sensor). Such devices and methods generate a toner concentration (TC) sensor response representing a concentration of toner particles within the toner/developer mixture using a TC sensor, calculate a calibration sensor relationship between the TC sensor response and the reload signal, using the processor, based on changes in the TC sensor response and the reload signal that occur while changing the toner concentration during the printing process, and calibrate the TC sensor based on differences between the calibration sensor relationship and a previously established model relationship using the processor.

Abstract translation: 设备和方法检测由打印处理引起的感光体上的调色剂量，并使用处理器计算重新加载信号。 重新载入信号示出了从调色剂容器重新装载在供体辊上的调色剂的量，以更换在印刷过程期间（由光学传感器检测到的）从供体辊移除的调色剂。 这样的装置和方法使用TC传感器产生表示调色剂/显影剂混合物中的调色剂颗粒浓度的调色剂浓度（TC）传感器响应，使用基于处理器的TC传感器响应和重载信号之间的校准传感器关系 关于在打印过程中改变调色剂浓度时发生的TC传感器响应和重新加载信号的变化，并且基于使用处理器的校准传感器关系和先前建立的模型关系之间的差异来校准TC传感器。

公开(公告)号：US08864283B1

公开(公告)日：2014-10-21

申请号：US13890790

申请日：2013-05-09

Applicant: Xerox Corporation

Inventor： Douglas R. Taylor ,  Robert E. Rosdahl, Jr. ,  Brian R. Conrow

IPC: B41J29/393 ,  B41J2/21

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

Abstract: A method of printer operation enables visual detection of defective inkjets. The method includes operating inkjets in a predetermined number of printheads that eject a same color of ink to form a test pattern having three portions. One portion is printed by the even-numbered inkjets in each printhead, one portion is printed by the odd-numbered inkjets in each printhead, and a third portion is printed by all of the inkjets in each printhead. The portions are printed immediately adjacent to one another in a process direction with the third portion between the other two portions.

Abstract translation: 打印机操作的方法使得能够可视地检测有缺陷的喷墨喷嘴。 该方法包括在预定数量的打印头中操作喷墨喷嘴以喷射相同颜色的墨水以形成具有三个部分的测试图案。 一部分由每个打印头中的偶数喷墨打印头，一部分由每个打印头中的奇数喷墨打印，并且第三部分由每个打印头中的所有喷墨打印。 这些部分在处理方向上彼此紧邻地打印，其中第三部分在另外的两个部分之间。

公开(公告)号：US09327537B2

公开(公告)日：2016-05-03

申请号：US14298232

申请日：2014-06-06

Applicant: Xerox Corporation

Inventor： Brian R. Conrow ,  Howard A. Mizes ,  Paul A. Hosier ,  Jeffrey J. Folkins ,  Robert J. Kleckner

IPC: B41J29/38 ,  B41J29/393 ,  B29C67/00 ,  B33Y50/02

CPC classification number: B41J29/393 ,  B29C64/112 ,  B29C64/386 ,  B33Y50/02

Abstract: A printer compensates for printing errors occurring during production of the layers for the formation of an object in a three-dimensional printer. The printer includes an optical sensor that generates data corresponding to edges of each layer of the object after each layer is printed. Differences between the raster data used to eject the material to form a layer and the data received from the optical sensor are used to modify the raster data that operates a printhead to form a next layer in the object.

Abstract translation: 打印机补偿在三维打印机中形成物体的层的生产期间发生的打印错误。 打印机包括光学传感器，其在印刷每层之后产生对应于物体每层的边缘的数据。 用于弹出材料以形成层的光栅数据与从光学传感器接收的数据之间的差异用于修改操作打印头以形成对象中的下一层的光栅数据。

公开(公告)号：US20160101568A1

公开(公告)日：2016-04-14

申请号：US14509827

申请日：2014-10-08

Applicant: Xerox Corporation

Inventor： Howard A. Mizes ,  Brian R. Conrow ,  Patricia J. Donaldson ,  Jeffrey J. Fokins ,  Paul A. Hosier ,  Robert J. Kleckner

IPC: B29C67/00

CPC classification number: B29C64/386 ,  B29C64/106 ,  B29C64/112 ,  B29C64/393 ,  B29K2101/12 ,  B29L2031/772 ,  B33Y10/00 ,  B33Y50/02

Abstract: A three-dimensional object printer ejects drops of a build material from a plurality of ejectors in a first printhead to form an object on a first region of a member and ejects drops of a support material from a plurality of ejectors in a second printhead to support the object on the first region of the member. The second printhead ejects drops of the support material onto a second region of the member that is separate from the first region to form a substrate layer. The first printhead ejects drops of the build material onto the substrate layer to form a printed test pattern. An image sensor generates image data of the printed test pattern to identify an inoperable ejector in the first printhead.

Abstract translation: 三维物体打印机从第一打印头中的多个喷射器喷射建筑材料的液滴，以在构件的第一区域上形成物体，并且从第二打印头中的多个喷射器喷射支撑材料的液滴以支撑 该成员的第一个区域上的对象。 第二打印头将支撑材料的液滴喷射到与第一区域分离的构件的第二区域上以形成基底层。 第一打印头将构建材料的液滴喷射到基底层上以形成印刷的测试图案。 图像传感器产生打印的测试图案的图像数据，以识别第一打印头中的不可操作的喷射器。

公开(公告)号：US20140333691A1

公开(公告)日：2014-11-13

申请号：US13890790

申请日：2013-05-09

Applicant: XEROX CORPORATION

Inventor： Douglas R. Taylor ,  Robert E. Rosdahl, JR. ,  Brian R. Conrow

IPC: B41J2/21

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

Abstract: A method of printer operation enables visual detection of defective inkjets. The method includes operating inkjets in a predetermined number of printheads that eject a same color of ink to form a test pattern having three portions. One portion is printed by the even-numbered inkjets in each printhead, one portion is printed by the odd-numbered inkjets in each printhead, and a third portion is printed by all of the inkjets in each printhead. The portions are printed immediately adjacent to one another in a process direction with the third portion between the other two portions.

Abstract translation: 打印机操作的方法使得能够可视地检测有缺陷的喷墨喷嘴。 该方法包括在预定数量的打印头中操作喷墨喷嘴以喷射相同颜色的墨水以形成具有三个部分的测试图案。 一部分由每个打印头中的偶数喷墨打印头，一部分由每个打印头中的奇数喷墨打印，并且第三部分由每个打印头中的所有喷墨打印。 这些部分在处理方向上彼此紧邻地打印，其中第三部分在另外的两个部分之间。