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1. 发明授权

US06808259B2 Controlling media curl in print-zone 失效
标题翻译：在打印区域控制介质卷曲
公开(公告)号：US06808259B2
公开(公告)日：2004-10-26
申请号：US10066111
申请日：2002-01-31
申请人： Steve O. Rasmussen , Robert M. Yraceburu , Steven P. Downing , Stuart D. Spencer , Jason S. Belbey , Vance M. Stephens
发明人： Steve O. Rasmussen , Robert M. Yraceburu , Steven P. Downing , Stuart D. Spencer , Jason S. Belbey , Vance M. Stephens
IPC分类号： B41J201
CPC分类号： B41J11/005
摘要： In an inkjet printing apparatus an inkjet printhead has a plurality of inkjet nozzles which eject ink onto media located within a print-zone. A drive shaft is located upstream of the printhead and is incrementally rotated to advance the media. The drive shaft has a longitudinal axis, a first radius over a central length and a second radius less than the first radius at a first recess and a second recess, each said recess being peripheral to the central length. A plurality of pinch devices stabilize the media against the drive shaft. A first guide is aligned with the first recess and is spaced from an axis of the drive shaft by a first distance which is less than the first radius. A second guide is aligned with the second recess and is spaced from the axis by a second distance less than the first radius.
摘要翻译：在喷墨打印设备中，喷墨打印头具有将墨水喷射到位于打印区域内的介质上的多个喷墨喷嘴。驱动轴位于打印头的上游，并逐渐旋转以推动介质。驱动轴具有纵向轴线，中心长度上的第一半径和小于第一凹部处的第一半径的第二半径和第二凹部，每个所述凹部围绕中心长度。多个夹紧装置将介质稳定地抵靠驱动轴。第一引导件与第一凹部对准，并且与驱动轴的轴线间隔开小于第一半径的第一距离。第二引导件与第二凹部对准，并且与轴线间隔小于第一半径的第二距离。

2. 发明授权

US5152622A Printer with improved anti-skew mechanisms 失效
标题翻译：打印机具有改进的反倾斜机制
公开(公告)号：US5152622A
公开(公告)日：1992-10-06
申请号：US722744
申请日：1991-06-28
申请人： Steve O. Rasmussen , Allan G. Olson , Vance M. Stephens , William R. Huseby
发明人： Steve O. Rasmussen , Allan G. Olson , Vance M. Stephens , William R. Huseby
IPC分类号： B41J13/10 , B41J13/30
CPC分类号： B41J13/30 , B41J13/103
摘要： The invented printer includes a paper drive and mechanisms which hold paper in proper alignment in the drive. Specifically, it includes a pressure plate capable of bringing a sheet of paper into contact with a drive roller so that the paper is properly aligned, a wrapper which keeps paper in proper contact with the drive roller, a media edge contactor that presses against paper, a carriage guide support which helps to insure proper alignment of the paper during printing, and a back-out restraint to prevent paper from backing out of the printer.
摘要翻译：本发明的打印机包括纸张驱动器和在驱动器中保持正确对准的纸张的机构。具体而言，它包括能够使一张纸与驱动辊接触以使纸张正确对准的压板，使纸保持与驱动辊正确接触的包装纸，压纸的介质边缘接触器，一个滑架导轨支架，有助于确保打印过程中纸张的正确对齐，以及一个退出限制，以防止纸张从打印机中退出。

3. 再颁专利

USRE40775E1 Method for adjusting drive roller linefeed distance 有权
标题翻译：调整驱动辊线路进给距离的方法
公开(公告)号：USRE40775E1
公开(公告)日：2009-06-23
申请号：US10279709
申请日：2002-10-23
申请人： Dan Arquilevich , Steve O. Rasmussen , Vance M. Stephens
发明人： Dan Arquilevich , Steve O. Rasmussen , Vance M. Stephens
IPC分类号： B41J11/00 , B41J11/42 , B41J11/46
CPC分类号： B41J11/42 , B41J11/008 , B41J11/009 , B41J11/46
摘要： A difference in feed roller diameter from one printer to another causes a media to advance by a different amount for a given rotation of a drive shaft to which the feed roller is coupled. Such variation in advance distance is a linefeed error. Mean linefeed error is determined and corrected by printing a test plot having several areas. Each area is formed of the same image pattern, but is printed at a different linefeed error adjustment to compensate for mean linefeed error. The different adjustments are prescribed and span a typical compensation range for a given print engine model. The different adjustment factors cause banding to occur in some areas. The user picks one of the test pattern areas which has the highest print quality (i.e., least or no banding). The linefeed adjustment factor corresponding to such area is used for normal printing.
摘要翻译：进料辊直径从一台打印机到另一台打印机之间的差异导致介质在进给辊联接到的驱动轴的给定旋转中前进不同的量。预先距离的这种变化是换行错误。通过打印具有几个区域的测试图来确定和校正平均换行错误。每个区域由相同的图像图案形成，但以不同的换行错误调整打印以补偿平均换行错误。对于给定的打印引擎模型，规定了不同的调整并跨越了典型的补偿范围。不同的调整因素导致一些地区发生捆绑。用户选择具有最高打印质量的测试图案区域之一（即，最少或不包带）。与该区域对应的换行调整系数用于正常打印。

4. 发明授权

US06733110B1 Printing mechanism 失效
标题翻译：打印机制
公开(公告)号：US06733110B1
公开(公告)日：2004-05-11
申请号：US10384960
申请日：2003-03-10
申请人： David W. Pinkernell , Steve O. Rasmussen , Vance M. Stephens
发明人： David W. Pinkernell , Steve O. Rasmussen , Vance M. Stephens
IPC分类号： B41J215
CPC分类号： B41J3/60 , B41J11/0015
摘要： A printing mechanism comprises a print engine that prints an image on a first side of a photographic print media, a laminator that laminates the first side of said photographic print media having said image printed thereon, and a duplexer that returns said photographic print media to said print engine for printing on a second side of said photographic print media.
摘要翻译：打印机构包括在照相打印介质的第一面上打印图像的打印引擎，将印刷有所述图像的所述照相打印介质的第一面层压的层压机，以及将所述照相打印介质返回到所述打印机的双工器用于在所述照相打印介质的第二面上打印的打印引擎。

5. 发明授权

US06789890B2 Holddown for a hardcopy device 失效
标题翻译：锁定硬拷贝设备
公开(公告)号：US06789890B2
公开(公告)日：2004-09-14
申请号：US10183827
申请日：2002-06-27
申请人： Victor H. Bruhn , Vance M. Stephens
发明人： Victor H. Bruhn , Vance M. Stephens
IPC分类号： B41J201
CPC分类号： B41J11/0085
摘要： A holddown for a hard copy device comprises a member having a surface and plural vacuum zones. Each of the vacuum zones defines a cavity in the surface having at least one port therethrough, and each cavity is defined by a sidewall circumscribing the cavity. At least one of the cavities has sidewall with a first section at a first height relative to the surface and a second section at a second height relative to the surface.
摘要翻译：硬拷贝装置的按压包括具有表面和多个真空区的构件。每个真空区限定了表面中的空腔，其中至少有一个通过其的端口，并且每个空腔由限定空腔的侧壁限定。空腔中的至少一个具有侧壁，第一部分相对于表面具有第一高度，第二部分相对于表面具有第二高度。

6. 发明授权

US06655679B2 Input converger for hardcopy devices 失效
标题翻译：硬拷贝设备的输入收敛
公开(公告)号：US06655679B2
公开(公告)日：2003-12-02
申请号：US10062996
申请日：2002-01-31
申请人： Peter Boucher , Vance M. Stephens
发明人： Peter Boucher , Vance M. Stephens
IPC分类号： B65H306
CPC分类号： B65H9/006 , B65H3/0676 , B65H5/068 , B65H2301/512125 , B65H2403/51 , B65H2404/1112 , B65H2404/133 , B65H2404/1411 , B65H2404/612 , B65H2404/7231
摘要： Apparatus for advancing media through a hardcopy device includes a cylindrical guide wheel having a first radius mounted on a shaft having an axis transverse to a media feed path axis. A guide surface is spaced apart from the guide wheel and defines a media feed path between the guide wheel and the guide surface. A drive wheel having an extended portion that is concentric with the guide wheel, and which has a greater radius than the first radius is fixed to the shaft. A pinch roller communicates with the media feed path.
摘要翻译：用于通过硬拷贝装置推进介质的装置包括圆柱形导轮，其具有安装在具有横向于介质进给路径轴线的轴的轴上的第一半径。引导表面与引导轮间隔开并且限定了引导轮和引导表面之间的介质馈送路径。具有与导轮同心的延伸部分并且具有比第一半径大的半径的驱动轮被固定到轴上。夹送辊与介质进给路径通信。

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