公开(公告)号：US08801140B2

公开(公告)日：2014-08-12

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 ,  B41J2/045

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用于调整点火信号，并使得打印头能够在围绕平均反射率的预定范围内打印 值和预定的光密度。

公开(公告)号：US20140198146A1

公开(公告)日：2014-07-17

申请号：US13743618

申请日：2013-01-17

Applicant: XEROX CORPORATION

Inventor： Helen Haekyung Shin ,  Howard A. Mizes ,  Jeffrey J. Folkins ,  Yeqing Zhang

IPC: B41J2/21

CPC classification number: B41J2/2132 ,  B41J2/2135 ,  B41J2/2146

Abstract: A method for process direction registration in an inkjet printer includes ejecting ink drops from a first inkjet at less than a maximum operating rate onto an image receiving surface moving in a process direction. The method includes generating image data samples of the image receiving surface including the ink drops. The method further includes identifying a center of the ink drops in the process direction with reference to the image data samples and storing a time offset value in a memory to correct an identified process direction offset between the identified center of the ink drops and another identified center of ink drops that are ejected by another inkjet.

Abstract translation: 喷墨打印机中的处理方向对准的方法包括：以小于最大工作速率将墨滴从第一喷墨喷射到沿加工方向移动的图像接收表面上。 该方法包括生成包括墨滴的图像接收表面的图像数据样本。 该方法还包括参考图像数据样本来识别处理方向上的墨滴的中心，并将时间偏移值存储在存储器中，以校正识别的墨滴中心与另一识别中心之间的识别过程方向偏移 由另一喷墨喷射的墨滴。

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。

公开(公告)号：US08764149B1

公开(公告)日：2014-07-01

申请号：US13743618

申请日：2013-01-17

Applicant: Xerox Corporation

Inventor： Helen Haekyung Shin ,  Howard A. Mizes ,  Jeffrey J. Folkins ,  Yeqing Zhang

IPC: B41J29/38

CPC classification number: B41J2/2132 ,  B41J2/2135 ,  B41J2/2146

Abstract: A method for process direction registration in an inkjet printer includes ejecting ink drops from a first inkjet at less than a maximum operating rate onto an image receiving surface moving in a process direction. The method includes generating image data samples of the image receiving surface including the ink drops. The method further includes identifying a center of the ink drops in the process direction with reference to the image data samples and storing a time offset value in a memory to correct an identified process direction offset between the identified center of the ink drops and another identified center of ink drops that are ejected by another inkjet.

Abstract translation: 喷墨打印机中的处理方向对准的方法包括：以小于最大工作速率将墨滴从第一喷墨喷射到沿加工方向移动的图像接收表面上。 该方法包括生成包括墨滴的图像接收表面的图像数据样本。 该方法还包括参考图像数据样本来识别处理方向上的墨滴的中心，并将时间偏移值存储在存储器中，以校正识别的墨滴中心与另一识别中心之间的识别过程方向偏移 由另一喷墨喷射的墨滴。