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1. 发明授权

US06792218B2 Method of compensating for low toner consumption 有权
标题翻译：补偿低碳粉消耗的方法
公开(公告)号：US06792218B2
公开(公告)日：2004-09-14
申请号：US10167376
申请日：2002-06-11
申请人： Stanley C. Tungate, Jr. , Cary Ravitz , Thomas G. Twardeck , Albert M. Carter, Jr. , Gary A. Denton
发明人： Stanley C. Tungate, Jr. , Cary Ravitz , Thomas G. Twardeck , Albert M. Carter, Jr. , Gary A. Denton
IPC分类号： G03G1508
CPC分类号： G03G15/08 , G03G15/50 , G03G21/0005
摘要： Artificial toner consumption is triggered to minimize the incidence of “conditioned” toner when a comparison of the rate of toner consumption to the mechanical activity of the electrophotographic printing device indicates that the toner consumption rate is too low. The artificial toner consumption operation may be achieved through a dummy print operation where an intentionally un-printed image is formed on a photoconductive drum, but the corresponding toner is routed to appropriate waste toner reservoir(s) and the image is not printed on the recording medium. The dummy print toner may be cleaned from the photoconductive drum without being transferred to an intermediate transfer medium and/or may be cleaned from the intermediate transfer medium, both without transferring the toner to the recording medium. The dummy print operation may correspond to a next normally occurring interdocument gap or a dedicated dummy print period inserted between print jobs.
摘要翻译：当比较调色剂消耗速率与电子照相印刷装置的机械活性相比显示调色剂消耗率太低时，触发人造墨粉消耗以最小化“调理”调色剂的发生率。可以通过虚拟打印操作来实现人造墨粉消耗操作，其中在感光鼓上形成有意未打印的图像，但是相应的调色剂被路由到适当的废调色剂储存器，并且图像不被打印在记录中。可以从感光鼓清洁虚拟打印碳粉，而不转移到中间转印介质和/或可以从中间转印介质清洁，而不将调色剂转印到记录介质上。虚拟打印操作可以对应于插入在打印作业之间的下一个正常发生的文档间隙或专用的虚拟打印时段。

2. 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。

3. 发明申请

US20070071469A1 Background energy density control in an electrophotographic device 有权
标题翻译：背景技术电子照相装置中的能量密度控制
公开(公告)号：US20070071469A1
公开(公告)日：2007-03-29
申请号：US11238314
申请日：2005-09-29
申请人： Cary Ravitz
发明人： Cary Ravitz
IPC分类号： G03G15/00 , G03G15/02 , G03G15/06
CPC分类号： G03G15/045
摘要： Control circuitry associated with an electrophotographic imaging device is adapted to manage bias levels of components in an image forming unit. A photoconductive surface is charged to a first bias level, a developer member is charged to a second bias level, and an imaging unit selectively discharges image feature locations on the photoconductive surface to a third bias level. In certain regions having a predetermined image feature density, the imaging unit may discharge an area in the vicinity of the image features to a fourth bias level that is between the first and third bias levels. The amount by which the imaging unit discharges the area in the vicinity of the image features changes as image feature density changes and as the difference between the first and third bias levels change.
摘要翻译：与电子照相成像装置相关联的控制电路适于管理图像形成单元中的部件的偏置电平。光电导表面被充电到第一偏置电平，显影剂构件被充电到第二偏置电平，并且成像单元选择性地将光电导表面上的图像特征位置放电到第三偏置电平。在具有预定图像特征密度的某些区域中，成像单元可以将图像特征附近的区域放电到处于第一和第三偏置电平之间的第四偏置电平。成像单元放电图像特征附近的区域的量随着图像特征密度变化以及第一和第三偏压电平之间的差异而改变。

4. 发明申请

US20050083541A1 Methods and systems for estimating single or multi-color toner coverage on a printer page 有权
标题翻译：用于在打印机页面上估计单色或多色墨粉覆盖度的方法和系统
公开(公告)号：US20050083541A1
公开(公告)日：2005-04-21
申请号：US10688110
申请日：2003-10-16
申请人： Raymond Clark , David Lane , Cary Ravitz , Stanley Tungate
发明人： Raymond Clark , David Lane , Cary Ravitz , Stanley Tungate
IPC分类号： H04N1/407 , H04N1/52 , H04N1/56
CPC分类号： H04N1/4076
摘要： Methods and systems for estimating single or multi-colored toner coverage on a printed page. One method includes generating color plane bitmaps corresponding to each color in a contone bitmap and calculating pixel coverage values for each of the color plane contone bitmaps. Another method includes receiving image data to be printed, generating color separations for the image data corresponding to available toner colors, printing each color separation on a printed page, scanning each printed page comprising the color separation and calculating toner coverage on each of the scanned printed pages.
摘要翻译：用于估算打印页面上单色或多色调色剂覆盖率的方法和系统。一种方法包括在连续色调位图中生成对应于每种颜色的彩色平面位图，并且计算每个彩色连续色调位图的像素覆盖值。另一种方法包括接收要打印的图像数据，产生对应于可用调色剂颜色的图像数据的分色，在打印页上打印每种颜色分离，扫描包括颜色分离的每个打印页面，并计算每个扫描打印的页面。

5. 发明申请

US20060257159A1 White vector feedback adjustment 有权
标题翻译：白色矢量反馈调整
公开(公告)号：US20060257159A1
公开(公告)日：2006-11-16
申请号：US11126814
申请日：2005-05-11
申请人： Alan Campbell , Albert Carter, , Cary Ravitz
发明人： Alan Campbell , Albert Carter, , Cary Ravitz
IPC分类号： G03G15/00
CPC分类号： G03G15/5062 , G03G15/065 , G03G2215/0634
摘要： Control circuitry associated with an electrophotographic imaging device is adapted to operate in conjunction with a sensor to adjust a difference in electrical bias between a photoconductive surface and an associated roller. The sensor detects a reflectance or luminosity of a developed image and the control circuitry uses this detected information and information related to reflectance or luminosity of the underlying surface and the developing toner to determine whether the developed image is produced as desired. The control circuitry adjusts the difference in electrical bias between the photoconductive surface and an associated roller in response to a comparison between the detected and desired images. In one embodiment, a predetermined test pattern is developed over a range of electrical bias differences and an optimum operating point is determined from the iterations.
摘要翻译：与电子照相成像装置相关联的控制电路适于与传感器一起操作以调节光电导表面和相关辊之间的电偏差的差异。传感器检测显影图像的反射率或亮度，并且控制电路使用该检测到的信息和与下表面和显影调色剂的反射率或发光度相关的信息来确定显影图像是否根据需要产生。响应于检测到的和期望的图像之间的比较，控制电路调节光电导表面和相关联的辊之间的电偏差的差异。在一个实施例中，在一定范围的电偏差上形成预定的测试图案，并从迭代确定最佳工作点。

6. 发明申请

US20070077081A1 Optimization of operating parameters, including imaging power, in an electrophotographic device 有权
标题翻译：在电子照相装置中优化操作参数，包括成像功率
公开(公告)号：US20070077081A1
公开(公告)日：2007-04-05
申请号：US11240217
申请日：2005-09-30
申请人： Alan Campbell , Cary Ravitz , Albert Carter
发明人： Alan Campbell , Cary Ravitz , Albert Carter
IPC分类号： G03G15/00
CPC分类号： G03G15/5062 , G03G2215/00067
摘要： Control circuitry associated with an electrophotographic imaging device is adapted to operate in conjunction with a sensor to adjust operating parameters, including an imaging power. The sensor detects a reflectivity of a developed image and the control circuitry uses this detected information and information related to reflectivity of the underlying surface and the developing toner to determine whether the developed image is produced as desired. The control circuitry adjusts imaging power in response to a comparison between the detected reflectivity and a target reflectivity. In one embodiment, a predetermined halftone pattern is developed over a range of imaging powers and an optimum operating point is determined from the iterations. A predictive model may be generated based on many data points to select imaging power based on optimized surface potentials.
摘要翻译：与电子照相成像装置相关联的控制电路适于与传感器一起操作以调整包括成像功率在内的操作参数。传感器检测显影图像的反射率，并且控制电路使用该检测到的信息和与下面的表面和显影调色剂的反射率相关的信息来确定显影的图像是否根据需要产生。控制电路响应于检测到的反射率和目标反射率之间的比较来调整成像功率。在一个实施例中，在成像功率的范围上形成预定的半色调图案，并且从迭代确定最佳工作点。可以基于许多数据点生成预测模型，以基于优化的表面电位来选择成像功率。

7. 发明申请

US20070071470A1 Method and device for determining one or more operating points in an image forming device 有权
标题翻译：用于确定图像形成装置中的一个或多个操作点的方法和装置
公开(公告)号：US20070071470A1
公开(公告)日：2007-03-29
申请号：US11239587
申请日：2005-09-29
申请人： Cary Ravitz , Gary Overall
发明人： Cary Ravitz , Gary Overall
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0194 , G03G2215/00059 , G03G2215/0119
摘要： Methods and devices for setting an operating point within an image forming device. The operating point for one or more image forming stations may be determined without performing a toner patch sensing procedure. The operating points are determined based on other information, such as the operating points of one or more other image forming stations, information about the device, and information about the image forming stations themselves. The different factors may be weighted to more accurately determine the operating parameter(s).
摘要翻译：用于在图像形成装置内设置工作点的方法和装置。可以在不执行调色剂片感测程序的情况下确定一个或多个图像形成站的操作点。操作点基于诸如一个或多个其它成像站的操作点，关于设备的信息以及关于图像形成站本身的信息等其他信息来确定。可以加权不同的因素以更准确地确定操作参数。

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