公开(公告)号：US20060203028A1

公开(公告)日：2006-09-14

申请号：US11078530

申请日：2005-03-10

申请人： Manish Agarwal ,  Xiaoxi Huang ,  Michael Nordlund

发明人： Manish Agarwal ,  Xiaoxi Huang ,  Michael Nordlund

IPC分类号： B41J29/393

CPC分类号： B41J29/393

摘要： A method is provided for print quality control. To carry out this method, a printing apparatus with optical detection capability is used. This apparatus includes: advance mechanism for advancing a print medium through a print zone; a carriage assembly having at least one pen for ejecting ink droplets onto the print medium in the print zone; an optical detection unit positioned in the print zone; and a printer controller. The optical detection unit includes an image acquisition module for capturing at least one image of the print zone within a field of view (FOV) and an image processor for performing a pixel array analysis of the captured image. The image analysis is triggered by the printer controller and the result of the analysis is fed back to the printer controller for controlling the printing operation.

摘要翻译： 提供了一种用于打印质量控制的方法。 为了实现该方法，使用具有光学检测能力的打印装置。 该装置包括：用于使打印介质前进通过打印区域的前进机构; 具有用于将墨滴喷射到打印区域中的打印介质上的至少一个笔的托架组件; 位于打印区域中的光学检测单元; 和打印机控制器。 光学检测单元包括用于捕获视场（FOV）内的打印区域的至少一个图像的图像获取模块和用于执行所捕获图像的像素阵列分析的图像处理器。 图像分析由打印机控制器触发，分析结果反馈给打印机控制器以控制打印操作。

公开(公告)号：US06709084B1

公开(公告)日：2004-03-23

申请号：US10280334

申请日：2002-10-25

申请人： Michael Nordlund ,  Manish Agarwal

发明人： Michael Nordlund ,  Manish Agarwal

IPC分类号： B41J29393

CPC分类号： B41J2/04556 ,  B41J2/04586 ,  B41J2/2132 ,  B41J29/393

摘要： A method for measuring a pen-to-paper spacing in an inkjet printing mechanism is provided. Firstly, a first nozzle of a printhead in the printing mechanism ejects a first ink drop onto a medium at a first ejection velocity when the printhead moves at a first moving velocity along a scanning axis and when the printhead reaches a first position along the scanning axis. Subsequently, a second nozzle of the printhead ejects a second ink drop onto the medium at a second ejection velocity when the printhead moves at a second moving velocity along the scanning axis and when the printhead reaches a second position along the scanning axis. The spacing between the two nozzles along the scanning axis and the spacing between the two positions along the scanning axis are predetermined. Then the spacing between the first and second ink drops on the medium along the scanning axis is measured. The pen-to-paper spacing can be determined from the first and second moving velocities, the first and second ejection velocities, the spacing between the first and second nozzles along the scanning axis, the spacing between the first and second positions along the scanning axis and the spacing between the first and second ink drops on the medium along the scanning axis.

摘要翻译： 提供了一种用于测量喷墨打印机构中笔 - 纸间距的方法。 首先，当打印头沿着扫描轴以第一移动速度移动时，当打印头沿着扫描轴到达第一位置时，打印机构中的打印头的第一喷嘴以第一喷射速度将第一墨滴喷射到介质上 。 随后，当打印头沿着扫描轴以第二移动速度移动时以及当打印头沿着扫描轴到达第二位置时，打印头以第二喷射速度将第二墨滴喷射到介质上。 沿着扫描轴的两个喷嘴之间的间隔和沿着扫描轴的两个位置之间的间隔是预定的。 然后测量第一和第二墨水之间的间距沿着扫描轴在介质上滴下。 可以从第一和第二移动速度，第一和第二排出速度，沿着扫描轴的第一和第二喷嘴之间的间隔，沿着扫描轴的第一和第二位置之间的间隔来确定笔到纸的间距 并且第一和第二墨水之间的间距沿着扫描轴在介质上滴下。

公开(公告)号：US07434901B2

公开(公告)日：2008-10-14

申请号：US11176045

申请日：2005-07-07

申请人： Seng San Koh ,  Manish Agarwal ,  Cherng Linn Teo ,  Rhea Patricia Liem ,  Michael Nordlund

发明人： Seng San Koh ,  Manish Agarwal ,  Cherng Linn Teo ,  Rhea Patricia Liem ,  Michael Nordlund

IPC分类号： B41J25/308

CPC分类号： B41J25/308 ,  B41J2/1752 ,  B41J25/3082 ,  B41J29/02

摘要： An apparatus for adjusting a spacing between a printhead and a print medium in a printer is provided. The printhead is mounted in a carriage which is slidable along a guiding rod. The apparatus includes a first and second assembly for adjusting a position of a first and second portion of the carriage, respectively. The second assembly includes a camshaft attached to and slidable with respect to the carriage, one or more cams attached to the camshaft, and a bushing member. A first surface of the bushing member abuts a predefined profile of the cam, and a second surface of the bushing member abuts the guiding rod. The sliding of the camshaft with respect to the carriage causes a distance between the bushing member and the camshaft to vary according to the predefined profile of the cam. Accordingly, the spacing between the printhead and the print medium is adjusted.

摘要翻译： 提供了一种用于调节打印机中的打印头和打印介质之间的间隔的装置。 打印头安装在可沿引导杆滑动的托架中。 该装置包括用于分别调节托架的第一和第二部分的位置的第一和第二组件。 第二组件包括附接到滑架并可相对于滑架滑动的凸轮轴，附接到凸轮轴的一个或多个凸轮以及衬套构件。 衬套构件的第一表面邻接凸轮的预定轮廓，衬套构件的第二表面邻接导杆。 凸轮轴相对于滑架的滑动导致衬套构件和凸轮轴之间的距离根据凸轮的预定轮廓而变化。 因此，调节打印头和打印介质之间的间隔。

公开(公告)号：US20070064079A1

公开(公告)日：2007-03-22

申请号：US11231136

申请日：2005-09-20

申请人： Aiqiang Yang ,  Michael Nordlund ,  Manish Agarwal ,  Sing-Yan Wan ,  Ban-Ho Chong

发明人： Aiqiang Yang ,  Michael Nordlund ,  Manish Agarwal ,  Sing-Yan Wan ,  Ban-Ho Chong

IPC分类号： B41J2/01

CPC分类号： B41J11/42 ,  B41J11/46

摘要： In a method for compensating for media linefeed errors in a media feed apparatus, a first correction parameter is applied during a first length of a media feed operation and a second correction parameter, which differs from the first correction parameter, is applied during a second length of the media feed operation.

摘要翻译： 在用于补偿介质进给装置中的介质换行错误的方法中，在介质进给操作的第一长度期间施加第一校正参数，并且在第二长度期间施加与第一校正参数不同的第二校正参数 的媒体Feed操作。

公开(公告)号：US07537334B2

公开(公告)日：2009-05-26

申请号：US11231136

申请日：2005-09-20

申请人： Aiqiang Yang ,  Michael Nordlund ,  Manish Agarwal ,  Sing-Yan Wan ,  Ban-Ho Chong

发明人： Aiqiang Yang ,  Michael Nordlund ,  Manish Agarwal ,  Sing-Yan Wan ,  Ban-Ho Chong

IPC分类号： B41J2/01

CPC分类号： B41J11/42 ,  B41J11/46

摘要： In a method for compensating for media linefeed errors in a media feed apparatus, a first correction parameter is applied during a first length of a media feed operation and a second correction parameter, which differs from the first correction parameter, is applied during a second length of the media feed operation.

摘要翻译： 在用于补偿介质进给装置中的介质换行错误的方法中，在介质进给操作的第一长度期间施加第一校正参数，并且在第二长度期间施加与第一校正参数不同的第二校正参数 的媒体Feed操作。

公开(公告)号：US20080008384A1

公开(公告)日：2008-01-10

申请号：US11858108

申请日：2007-09-19

申请人： Xiaoxi Huang ,  Michael Nordlund ,  Manish Agarwal

发明人： Xiaoxi Huang ,  Michael Nordlund ,  Manish Agarwal

IPC分类号： G06K9/34 ,  G06K9/32

CPC分类号： B41J3/4071

摘要： A method for printing to a rotational media having a surface to be printed to and being rotatable about an axis extending away from the surface is provided. The method includes dividing the image into a plurality of sectors; converting the pixel locations of at least one of the plurality of sectors of the image into polar coordinates; rotating the polar coordinates for each converted sector by predetermined respective angles; and reconverting the pixel locations of each converted sector into rasterized rectangular coordinates according to the rectangular coordinate system.

摘要翻译： 提供了一种用于打印到具有待打印表面并且能够绕远离表面延伸的轴线旋转的旋转介质的方法。 该方法包括将图像划分成多个扇区; 将图像的多个扇区中的至少一个的像素位置转换为极坐标; 将每个转换的扇区的极坐标旋转预定的相应角度; 并且根据直角坐标系将每个转换的扇区的像素位置重新转换成光栅化的直角坐标。

公开(公告)号：US07302888B2

公开(公告)日：2007-12-04

申请号：US10944300

申请日：2004-09-17

申请人： Xiaoxi Huang ,  Michael Nordlund ,  Manish Agarwal

发明人： Xiaoxi Huang ,  Michael Nordlund ,  Manish Agarwal

IPC分类号： B41F17/00

CPC分类号： B41J3/4071

摘要： An apparatus for use in printing to a rotational media having a surface to be printed to and being rotatable about an axis extending away from the surface is provided. The apparatus includes an engaging arrangement to engage the rotational media so as to impart controlled rotational movement thereto about the axis. The engaging arrangement is configured to be coupled to printer gearing on a printer, such that rotation of the printer gearing on the printer causes rotation of the rotational media when engaged on the engaging arrangement.

摘要翻译： 提供了一种用于打印到具有待打印表面并且能够围绕远离表面延伸的轴线旋转的旋转介质的装置。 该装置包括接合装置以接合旋转介质，以便绕轴线传递受控的旋转运动。 接合装置被配置为联接到打印机上的打印机传动装置，使得在打印机上传动的打印机的旋转在接合在接合装置上时导致旋转介质旋转。

公开(公告)号：US20070008352A1

公开(公告)日：2007-01-11

申请号：US11176045

申请日：2005-07-07

申请人： Seng Koh ,  Manish Agarwal ,  Cherng Teo ,  Rhea Liem ,  Michael Nordlund

发明人： Seng Koh ,  Manish Agarwal ,  Cherng Teo ,  Rhea Liem ,  Michael Nordlund

IPC分类号： B41J23/00 ,  B41J25/308 ,  B41J2/175

CPC分类号： B41J25/308 ,  B41J2/1752 ,  B41J25/3082 ,  B41J29/02

摘要： An apparatus for adjusting a spacing between a printhead and a print medium in a printer is provided. The printhead is mounted in a carriage which is slidable along a guiding rod. The apparatus includes a first and second assembly for adjusting a position of a first and second portion of the carriage, respectively. The second assembly includes a camshaft attached to and slidable with respect to the carriage, one or more cams attached to the camshaft, and a bushing member. A first surface of the bushing member abuts a predefined profile of the cam, and a second surface of the bushing member abuts the guiding rod. The sliding of the camshaft with respect to the carriage causes a distance between the bushing member and the camshaft to vary according to the predefined profile of the cam. Accordingly, the spacing between the printhead and the print medium is adjusted.

摘要翻译： 提供了一种用于调节打印机中的打印头和打印介质之间的间隔的装置。 打印头安装在可沿引导杆滑动的托架中。 该装置包括用于分别调节托架的第一和第二部分的位置的第一和第二组件。 第二组件包括附接到滑架并可相对于滑架滑动的凸轮轴，附接到凸轮轴的一个或多个凸轮以及衬套构件。 衬套构件的第一表面邻接凸轮的预定轮廓，衬套构件的第二表面邻接导杆。 凸轮轴相对于滑架的滑动导致衬套构件和凸轮轴之间的距离根据凸轮的预定轮廓而变化。 因此，调节打印头和打印介质之间的间隔。

公开(公告)号：US06761428B2

公开(公告)日：2004-07-13

申请号：US10201437

申请日：2002-07-22

申请人： Manish Agarwal ,  Michael Nordlund

发明人： Manish Agarwal ,  Michael Nordlund

IPC分类号： B41J2165

CPC分类号： B41J2/16544

摘要： In a method for independently wiping a first and a second printhead of an inkjet printing mechanism, a first and a second wiping assembly separated from each other are provided in the printing mechanism. Furthermore, the wiping of the first printhead by the first wiper and the wiping of the second printhead by the second wiper are separately controlled.

公开(公告)号：US06619780B1

公开(公告)日：2003-09-16

申请号：US10119980

申请日：2002-04-10

申请人： Manish Agarwal ,  Michael Nordlund

发明人： Manish Agarwal ,  Michael Nordlund

IPC分类号： B41J2165

CPC分类号： B41J2/16517 ,  B41J2/16579

摘要： A method for servicing a printhead of an inkjet printing mechanism is provided. Firstly, a plurality of time difference information is collected by the printing mechanism. Each time difference information represents a period of time passed between end of a last print job and receipt of a succeeding print job. The print jobs are sent from a computer connected to the printing mechanism. Subsequently, the printing mechanism uses the plurality of time difference information to determine a nominal time information representing an amount of time. After the determination of the nominal time information, the printing mechanism periodically performs a first level servicing dependent upon the nominal time information.

摘要翻译： 提供一种维修喷墨打印机构的打印头的方法。 首先，通过打印机构收集多个时差信息。 每个时差信息表示在最后一次打印作业结束和接收后续打印作业之间经过的时间段。 打印作业从连接到打印机构的计算机发送。 随后，打印机构使用多个时差信息来确定表示时间量的标称时间信息。 在确定标称时间信息之后，打印机构根据标称时间信息周期性地执行一级服务。