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1. 发明申请

US20060127132A1 Method and apparatus for characterizing and compensating drive train rotational velocity errors 有权
标题翻译：表征和补偿传动系转速误差的方法和装置
公开(公告)号：US20060127132A1
公开(公告)日：2006-06-15
申请号：US11011280
申请日：2004-12-14
申请人： Stacy Pargett , Mark Omelchenko , John Richey , John Spicer , Adrian Lee
发明人： Stacy Pargett , Mark Omelchenko , John Richey , John Spicer , Adrian Lee
IPC分类号： G03G15/00
CPC分类号： G03G15/0896 , G03G15/5008
摘要： Drive train motor speed is varied in a manner that compensates for characteristic rotational velocity errors of the associated drive train, such as by modulating a drive train motor speed control signal at a modulation phase and amplitude derived from the characterized rotational velocity error. Characterization can be performed on a test system for each drive train of interest, and the compensation values thus obtained can be saved for later use by systems in which the characterized drive trains are used. Thus, a drive train used in a consumables cartridge for an electrophotographic printing (EP) system can be characterized and the corresponding data saved via a label or memory circuit that is affixed to the cartridge. Such data can be used by the EP system in which the cartridge is installed to more accurately control the velocity of the image forming process members driven by the cartridge's characterized drive train.
摘要翻译：传动系电动机速度以补偿相关联的传动系的特征旋转速度误差的方式变化，例如通过调制调制阶段的传动系电机速度控制信号和从特征旋转速度误差导出的振幅。可以在每个感兴趣的传动系统的测试系统上进行表征，并且可以将由此获得的补偿值保存以供以后使用的特征在于的驱动列车的系统使用。因此，用于电子照相印刷（EP）系统的消耗品盒中的传动系统可以被表征，并且通过固定到盒的标签或存储器电路保存相应的数据。这样的数据可以由其中安装盒的EP系统使用，以更精确地控制由盒式传动系驱动的图像形成处理构件的速度。

2. 发明申请

US20050134679A1 Margin registration of a scan line in an electrophotographic printer 审中-公开
标题翻译：电子照相打印机中的扫描线的边距注册
公开(公告)号：US20050134679A1
公开(公告)日：2005-06-23
申请号：US10727902
申请日：2003-12-04
申请人： Robert Paterson , John Richey , Mark Lund , Mark Omelchenko
发明人： Robert Paterson , John Richey , Mark Lund , Mark Omelchenko
IPC分类号： B41J2/435 , B41J2/47
CPC分类号： B41J2/471
摘要： A method of aligning a print image of an electrophotographic machine, the method including the steps of determining a power level of a laser beam, sensing a synch position of the laser beam associated with the scan line and varying a delay time before starting the scan line dependent upon the power level and the synch position.
摘要翻译：一种对准电子照相机的打印图像的方法，所述方法包括以下步骤：确定激光束的功率水平，感测与扫描线相关联的激光束的同步位置，并改变启动扫描线之前的延迟时间取决于功率水平和同步位置。

3. 发明申请

US20050201808A1 Combined paper and transparency sensor for an image forming apparatus 有权
标题翻译：用于图像形成装置的组合纸和透明度传感器
公开(公告)号：US20050201808A1
公开(公告)日：2005-09-15
申请号：US10798127
申请日：2004-03-11
申请人： Raymond Barry , John Richey , Michael Maul , Steven Rehmel
发明人： Raymond Barry , John Richey , Michael Maul , Steven Rehmel
IPC分类号： G01N21/55 , G01N21/86
CPC分类号： G01N21/86 , B41J11/009 , B41J11/0095 , G03G15/5029 , G03G2215/00447 , G03G2215/00497 , G03G2215/00751
摘要： A media sensor for an image forming apparatus is operative to sense and distinguish opaque, transparent or no media in a media path. In one embodiment, an optical source and detector are positioned on opposite sides of the media path, at an acute, non-zero angle with respect to a direction normal to the media path. In other embodiments, an optical source and detector are co-located on the same side of the media path with an optical barrier between them, and one or more reflective surfaces positioned on the opposite side. With no media in the media path, the detector receives a readily detectable amount of optical energy emitted by the source. For opaque media, the detector receives very little, if any, optical energy emitted by the source. For transparent media, the detector receives a level of optical energy between that in the cases of opaque media and no media.
摘要翻译：用于图像形成装置的介质传感器可用于感测和区分介质路径中的不透明，透明或无介质。在一个实施例中，光源和检测器相对于与介质路径垂直的方向以锐角非零角度位于介质路径的相对侧上。在其他实施例中，光源和检测器共同位于介质路径的相同侧上，其间具有光学屏障，以及位于相对侧上的一个或多个反射表面。在介质路径中没有介质的情况下，检测器接收到源头发出的容易检测到的光能量。对于不透明介质，检测器接收到源极发射的光能很少（如果有的话）。对于透明介质，检测器在不透明介质和无介质的情况下接收到一定程度的光能。

4. 发明申请

US20060170757A1 Multiple speed modes for an electrophotographic device 有权
标题翻译：用于电子照相设备的多种速度模式
公开(公告)号：US20060170757A1
公开(公告)日：2006-08-03
申请号：US11046038
申请日：2005-01-28
申请人： Alan Campbell , Cary Ravitz , John Richey
发明人： Alan Campbell , Cary Ravitz , John Richey
IPC分类号： B41J2/435 , B41J2/47
CPC分类号： B41J2/473 , G03G15/043 , G03G15/0435 , G03G15/326
摘要： An electrophotographic device comprises a printhead having at least one laser associated with a corresponding photoconductive surface. Where multiple laser beams are associated with the same photoconductive surface, the laser beams are spaced a predetermined distance from one another in a process direction, which is orthogonal to a scan direction in which the laser beams are swept. The electrophotographic device operates at one of at least two image transfer rates. A controller in the electrophotographic device selectively directs image data to the printhead based, at least in part, upon the selected image transfer rate, the facet resolution, and/or the desired output image resolution. The print speed can thus be adjusted over a relatively wide range.
摘要翻译：电子照相装置包括具有至少一个与相应的光导表面相关联的激光器的打印头。在多个激光束与相同的光电导表面相关联的情况下，激光束在与扫描激光束的扫描方向正交的处理方向上彼此隔开预定的距离。电子照相设备以至少两个图像传送速率中的一种进行操作。至少部分地基于所选择的图像传送速率，小平面分辨率和/或期望的输出图像分辨率，电子照相设备中的控制器选择性地将图像数据引导到打印头。因此可以在相对较宽的范围内调整打印速度。

5. 发明申请

US20050185731A1 Method and apparatus for reducing EMI emissions for data signals traveling over a data pathway 有权
标题翻译：用于减少在数据通路上行进的数据信号的EMI辐射的方法和装置
公开(公告)号：US20050185731A1
公开(公告)日：2005-08-25
申请号：US10772838
申请日：2004-02-05
申请人： Keith Hardin , Robert Oglesbee , John Richey
发明人： Keith Hardin , Robert Oglesbee , John Richey
IPC分类号： H04B15/00 , H04B15/02
CPC分类号： H04B15/02
摘要： An improved data signal electromagnetic emissions system is provided for sending data signals over one or more data pathways. An original data signal is encoded into a set of sideband frequencies that exhibit a lower amplitude than the original data signal; then transmitted over the data pathway and later decoded back into a signal having the original data content. The encoding scheme uses a number of modulation pattern sets that each produce a set of sidebands about the data signal's fundamental and certain harmonic frequencies, in a manner that attempts to make the maximum amplitudes for each set of sidebands substantially equal to one another, although this is also dependent upon the data signal's frequency content.
摘要翻译：提供改进的数据信号电磁辐射系统用于通过一个或多个数据路径发送数据信号。原始数据信号被编码成具有比原始数据信号更低的幅度的一组边带频率; 然后在数据通路上传输，随后被解码成具有原始数据内容的信号。编码方案使用多个调制模式集合，每个调制模式集合以产生一组关于数据信号的基本频率和某些谐波频率的边带，尝试使每组边带的最大幅度基本上彼此相等，尽管这也取决于数据信号的频率内容。

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