公开(公告)号：US20150352839A1

公开(公告)日：2015-12-10

申请号：US14298047

申请日：2014-06-06

Applicant: Xerox Corporation

Inventor： Jeffrey J. Folkins ,  Patricia J. Donaldson

IPC: B41J2/045

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

Abstract: A controller in a printer operates one or more printheads in the printer with reference to a predetermined height of material above a surface of a member and a height of a top layer of material above the surface of the member. The height of the top layer is identified with reference to a first sensor that generates data corresponding to a height of a face of one of the printheads above the surface of the member and a second sensor that generates data corresponding to a distance between the face of one of the printheads and the top layer of material.

Abstract translation: 打印机中的控制器参照打印机表面上方的材料的预定高度以及在构件表面上方的顶层材料的高度来操作打印机中的一个或多个打印头。 参考第一传感器来识别顶层的高度，第一传感器产生对应于构件表面之上的一个打印头的面的高度的数据，以及第二传感器，该第二传感器产生对应于表面之间的距离的数据 其中一个打印头和顶层材料。

公开(公告)号：US20150273917A1

公开(公告)日：2015-10-01

申请号：US14231374

申请日：2014-03-31

Applicant: Xerox Corporation

Inventor： Patricia J. Donaldson ,  William H. Wayman

IPC: B41J29/393

CPC classification number: B41J2/04535 ,  B29C64/112 ,  B29C64/386 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B41J2/04585 ,  B41J2/125 ,  B41J2/14153 ,  B41J2/16579 ,  B41J2/21 ,  B41J2/2107 ,  B41J2/2114 ,  B41J2/2142 ,  B41J29/393 ,  B41J2029/3935

Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern change the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract translation: 一种装置在打印期间检测不起作用的喷墨。 该设备操作打印机中的打印头或打印头以在热衬底上形成测试图案。 用于形成测试图案的材料的热量改变了材料着陆区域的光密度。 成像测试图形的区域，分析图像数据以识别不工作的喷墨。

公开(公告)号：US09067445B2

公开(公告)日：2015-06-30

申请号：US14029509

申请日：2013-09-17

Applicant: Xerox Corporation

Inventor： Patricia J. Donaldson

IPC: B41J29/393

CPC classification number: B41J29/393 ,  B41J2/2142 ,  B41J2/2146

Abstract: A method for printhead location identification includes identifying a plurality of amplitudes for a portion of pixel columns in image data generated from a portion of an image receiving surface in which marks formed by an inkjet in the printhead are printed. The amplitudes are generated from a portion of each pixel column including expected locations for a portion of the printed marks in a process direction. The method further includes identifying a cross-process location of the inkjet from a pixel column corresponding to a pixel column with a maximum local amplitude value and storing the location of the inkjet in a memory for printhead registration.

Abstract translation: 一种用于打印头位置识别的方法包括：从图像接收表面的一部分产生的图像数据中的一部分像素列识别多个振幅，其中由打印头中的喷墨形成的标记被打印。 幅度是从每个像素列的一部分产生的，包括在处理方向上打印标记的一部分的预期位置。 该方法还包括从对应于具有最大局部振幅值的像素列的像素列识别喷墨的交叉处理位置，并将喷墨的位置存储在用于打印头注册的存储器中。

公开(公告)号：US20130187972A1

公开(公告)日：2013-07-25

申请号：US13786540

申请日：2013-03-06

Applicant: Xerox Corporation

Inventor： R. Enrique Viturro ,  Yeqing Zhang ,  Patricia J. Donaldson

IPC: B41J29/393

CPC classification number: B41J29/393 ,  B41J2/04508 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/0459 ,  B41J2029/3935 ,  B41J2202/21

Abstract: A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.

Abstract translation: 已经开发了用于在成像装置中原位校准多个打印头的方法。 发射信号操作多个打印头以在图像接收部件上形成墨测试图案。 用于从由多个打印头中的一个打印头形成的图案的一部分图案从测试图案反射的光的反射率测量值和光密度测量结果被用于调整点火信号，并使打印头能够在关于平均反射率的预定范围内打印 值和预定的光密度。