公开(公告)号：US20030016960A1

公开(公告)日：2003-01-23

申请号：US10176956

申请日：2002-06-21

发明人： Eric C. Stelter ,  Kenneth P. Friedrich ,  Joseph Guth

IPC分类号： G03G015/00

CPC分类号： G03G15/5041 ,  G03G15/5037 ,  G03G2215/00042 ,  G03G2215/00054

摘要： A mechanism and process for detecting mottle or banding in a developed electrophotographic image. Within an electrophotographic reproduction apparatus 10, a photoconductor is used for receiving and developing a latent image. The photoconductor traverses a path that passes a charging station 28, an exposure station 34, a toning station 38, and a transfer station 46. Either a densitometer 76 for measuring the density of the developed image on the photoconductor, or an electrometer 50a or 50b for detecting the voltage of the image on the photoconductor, detects mottle or banding on the developed image. The densitometer 76 or electrometer 50a or 50b has an aperture small enough to detect mottle or banding with wavelengths perceptible by human eyes. A logic and control unit 24 averages the image density or voltage measurements, calculates the variations of the measurements about the average and the periodicities of the measurements, and if the variations or periodicities indicate mottle or banding is present, changes the operation of one or more stations to reduce mottle or banding.

摘要翻译： 用于在显影的电子照相图像中检测斑点或条带的机理和方法。 在电子照相再现装置10中，光电导体用于接收和显影潜像。 光电导体穿过通过充电站28，曝光站34，调色站38和传送站46的路径。用于测量感光体上显影图像的密度的密度计76或静电计50a或50b 为了检测光电导体上的图像的电压，检测显影图像上的斑点或条带。 密度计76或静电计50a或50b具有足够小的孔径以用人眼可察觉的波长检测斑点或条带。 逻辑和控制单元24对图像浓度或电压测量进行平均，计算关于测量的平均值和周期性的测量值的变化，并且如果变化或周期性指示斑点或条带存在，则改变一个或多个 站点减少斑驳或条带。

公开(公告)号：US06493524B2

公开(公告)日：2002-12-10

申请号：US09804264

申请日：2001-03-13

申请人： Yuji Kamiya

发明人： Yuji Kamiya

IPC分类号： G03G1500

CPC分类号： G03G15/5037 ,  G03G2215/00054

摘要： An image forming apparatus includes an image bearing member, an image forming unit for forming an image on the image bearing member and a detector for detecting the surface potential of the image bearing member, wherein a first image forming mode and a second image forming mode in which the image forming conditions of the image forming unit are different from each other can be selected, and further, the apparatus includes a controller for controlling the image forming conditions in the first and second image forming modes on the basis of the result detected by the detector for the first image forming mode.

摘要翻译： 图像形成装置包括图像承载部件，用于在图像承载部件上形成图像的图像形成单元和用于检测图像承载部件的表面电位的检测器，其中，第一图像形成模式和第二图像形成模式 可以选择图像形成单元的图像形成条件彼此不同的装置，并且还包括控制器，用于基于由第一和第二图像形成模式检测到的结果来控制第一和第二图像形成模式中的图像形成条件 检测器用于第一图像形成模式。

公开(公告)号：US06463240B2

公开(公告)日：2002-10-08

申请号：US09789923

申请日：2001-02-22

申请人： Tomio Onuki ,  Junichi Hama

发明人： Tomio Onuki ,  Junichi Hama

IPC分类号： G03G1508

CPC分类号： G03G15/0266 ,  G03G15/065 ,  G03G2215/00054 ,  G03G2215/0119

摘要： There is provided a potential controlling method and potential controller of an image forming apparatus, which can certainly prevent toner and carrier from adhering to the surface of an image bearing body at the time of start and stop of image formation and which can also be applied to an image forming apparatus having a high image forming speed. In the potential controller, at the time of rising or falling of a charged potential of the image bearing body and a developing bias voltage, at least one of the charged potential of the image bearing body and the developing bias voltage is controlled to an objective value through plural stages with the rising or falling of the other occurring through the stages, so that a potential difference between a potential of a non-charged portion of the image bearing body and the developing bias voltage does not exceed a first predetermined value, and a potential difference between a potential of a charged portion of the image bearing body and the developing bias voltage does not exceed a second predetermined value.

摘要翻译： 提供了图像形成装置的电位控制方法和电位控制器，其能够在图像形成开始和停止时肯定地防止调色剂和载体粘附到图像承载体的表面，并且也可以应用于 具有高图像形成速度的图​​像形成装置。 在电位控制器中，在图像承载体的充电电位上升或下降时，显影偏压，图像承载体的充电电位和显影偏压中的至少一个被控制为目标值 通过多个阶段，通过阶段发生另一阶段的上升或下降，使得图像承载体的未充电部分的电位与显影偏压之间的电位差不超过第一预定值，并且 图像承载体的带电部分的电位与显影偏压之间的电位差不超过第二预定值。

公开(公告)号：US06384856B2

公开(公告)日：2002-05-07

申请号：US09764051

申请日：2001-01-19

申请人： Kenichi Nakagawa ,  Kazuo Suzuki

发明人： Kenichi Nakagawa ,  Kazuo Suzuki

IPC分类号： B41J2435

CPC分类号： H04N1/4078 ,  B41J2/473 ,  G02B26/12 ,  G02B26/123 ,  G03G2215/00054

摘要： An image formation apparatus includes a plurality of light sources for emitting a plurality of light beams and a scanning system for scanning the plurality of light beams emitted by the plurality of light sources on a common photosensitive body. A storage medium stores a look-up table containing setting values corresponding to each of the plurality of light sources. A processing unit processes image data based on the setting values corresponding to each of the plurality of light sources contained in the look-up table stored in the storage medium. Finally, a drive circuit drives each of the plurality of light sources based on the image data processed by the image processing unit.

摘要翻译： 图像形成装置包括用于发射多个光束的多个光源和用于在公共感光体上扫描由多个光源发射的多个光束的扫描系统。 存储介质存储包含与多个光源中的每一个对应的设置值的查找表。 处理单元基于与存储在存储介质中的查找表中包含的多个光源中的每个光源相对应的设置值来处理图像数据。 最后，驱动电路基于由图像处理单元处理的图像数据来驱动多个光源中的每一个。

公开(公告)号：US6100907A

公开(公告)日：2000-08-08

申请号：US059430

申请日：1998-04-14

申请人： Bruno Van Uffel

发明人： Bruno Van Uffel

IPC分类号： B41J2/44 ,  B41J2/47 ,  G02B26/10 ,  G03G15/00 ,  G03G15/04 ,  H04N1/40 ,  H04N1/401 ,  H04N1/407 ,  B41J2/385

CPC分类号： B41J2/473 ,  G03G15/5037 ,  H04N1/4005 ,  H04N1/4015 ,  H04N1/4078 ,  G03G2215/00054

摘要： A multi-beam scanning system has a beam control using an Electrostatic Voltage Sensor or an Image Density Sensor on the Organic Photoconductor. The laser beams can be attuned according to the voltage or density results. This results in a more reliable system as compared to the use of one or more photodetectors.

摘要翻译： 多光束扫描系统具有使用静电电压传感器或有机感光体上的图像密度传感器的光束控制。 可以根据电压或密度结果调整激光束。 与使用一个或多个光电检测器相比，这导致更可靠的系统。

公开(公告)号：US6006047A

公开(公告)日：1999-12-21

申请号：US974448

申请日：1997-11-20

申请人： Robert M. Mara ,  Barbara A. Sampath ,  Lai C. Lam ,  Patrick O. Waller ,  Joseph A. Mastrandrea

发明人： Robert M. Mara ,  Barbara A. Sampath ,  Lai C. Lam ,  Patrick O. Waller ,  Joseph A. Mastrandrea

IPC分类号： G03G15/02 ,  G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043

CPC分类号： G03G15/5037 ,  G03G2215/00054

摘要： An apparatus for monitoring and controlling electrical parameter of an imaging surface, the monitoring controlling apparatus including a patch generator for recording a first control patch at a first voltage level and a second control patch at a second voltage level on the imaging surface; electrostatic voltmeter for measuring voltage potentials associated with the first control patch and second control patch. A processor, in communication with the patch generator, calculates the electrical parameters of the imaging surface from the measured voltage potentials from the first and second control patches. The processor determines a deviation between the calculated electrical parameters values and setup values. Then, the processor produces and sends a feedback error signal to the patch generator if the deviation exceed a threshold level. The patch generator records a third control patch at a third voltage level on the imaging surface upon reception of the error signal. The ESV senses the third control patch. The processor calculates the electrical parameters of the imaging surface from the measured voltage potential of the third control patch and determines a correction factor. The charging device, exposure system and developer are adjusted in accordance to the correction factor.

摘要翻译： 一种用于监测和控制成像表面的电参数的装置，所述监测控制装置包括用于在所述成像表面上以第二电压电平记录第一电压电平的第一控制贴片和第二控制贴片的贴片发生器; 用于测量与第一控制贴片和第二控制贴片相关联的电压电位的静电电压表。 与贴片发生器通信的处理器根据来自第一和第二控制贴片的测量电压电位计算成像表面的电参数。 处理器确定计算的电气参数值和设定值之间的偏差。 然后，如果偏差超过阈值水平，则处理器产生并发送反馈误差信号给补丁发生器。 贴片发生器在接收到误差信号时，在成像表面上记录第三电压电平的第三控制电平。 ESV感觉到第三个控制补丁。 处理器根据测量的第三控制补丁的电压电位计算成像表面的电气参数，并确定校正因子。 充电装置，曝光系统和显影剂根据校正因子进行调整。

公开(公告)号：US5995776A

公开(公告)日：1999-11-30

申请号：US83142

申请日：1998-05-22

申请人： Lingappa K. Mestha ,  Yao Rong Wang ,  John Buranicz ,  Meera Sampath ,  Mark A. Scheuer

发明人： Lingappa K. Mestha ,  Yao Rong Wang ,  John Buranicz ,  Meera Sampath ,  Mark A. Scheuer

IPC分类号： G03G15/00

CPC分类号： G03G15/5041 ,  G03G2215/00042 ,  G03G2215/00054 ,  G03G2215/0174

摘要： An online printing parameter establishment apparatus is used with a xerographic printing device for printing high quality prints given a target value. The xerographic printing device is capable of producing at least one print control patch on a photoreceptor and is capable of sensing a value of the at least one print control patch. The xerographic printing device has a plurality of sets of inherent performance characteristic values. The online printing parameter establishment apparatus includes a controller device and a switch device. The controller device is operative to produce a first database of different ones of the sensed values. Each sensed value is associated with a respective one of the plurality of sets of inherent performance characteristic values based upon the target value. The controller device is also operative to produce a second database of a plurality of control values. Each one of the control values is extracted from a respective one of the sensed values and the associated set of inherent performance characteristic values. Further, the controller device selects one of the control values which is closely comparable to the target value. A method for online establishment of print control parameters to render high quality prints using a xerographic printing process is also described.

摘要翻译： 在线打印参数建立装置与静电印刷装置一起使用，用于打印给定目标值的高质量打印。 静电印刷装置能够在感光体上产生至少一个打印控制贴片并且能够感测至少一个打印控制贴片的值。 静电印刷装置具有多组固有的性能特征值。 在线打印参数设置装置包括控制器设备和开关设备。 控制器装置可操作以产生不同感测值的第一数据库。 基于目标值，每个感测值与多组固有性能特征值中的相应一个相关联。 控制器设备还可操作以产生多个控制值的第二数据库。 控制值中的每一个都从相应的一个感测值和相关的固有性能特征值集合中提取出来。 此外，控制器设备选择与目标值非常相似的一个控制值。 还描述了用于在线建立打印控制参数以使用静电印刷处理来呈现高质量打印的方法。

公开(公告)号：US5974276A

公开(公告)日：1999-10-26

申请号：US17054

申请日：1998-01-27

申请人： Syuji Oogi

发明人： Syuji Oogi

IPC分类号： G03G21/00 ,  G03G15/00 ,  G03G15/02 ,  G03G15/08

CPC分类号： G03G15/0266 ,  G03G15/0853 ,  G03G15/0855 ,  G03G15/5041 ,  G03G2215/00042 ,  G03G2215/00054 ,  G03G2215/00059 ,  G03G2215/00067

摘要： The present invention, for example, forms a test pattern image on the surface of a photosensitive member at predetermined periodicity and detects the density of said test pattern image. If the detected density value of the test pattern image is other than said target value, the charging voltage is preferentially adjusted to maintain a stable toner density. When the adjusted charging voltage attains either an upper limit or a lower limit, the toner density is adjusted.

摘要翻译： 例如，本发明以预定的周期在感光构件的表面上形成测试图案图像，并检测所述测试图案图像的密度。 如果检测图案图像的检测浓度值不是所述目标值，则优先调整充电电压以保持稳定的调色剂密度。 当调整后的充电电压达到上限或下限时，调节调色剂浓度。

公开(公告)号：US5920747A

公开(公告)日：1999-07-06

申请号：US94614

申请日：1998-06-15

申请人： Shinichi Takemoto ,  Yasuyuki Inada

发明人： Shinichi Takemoto ,  Yasuyuki Inada

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/08

CPC分类号： G03G15/5054 ,  G03G15/1675 ,  G03G15/5041 ,  G03G2215/00042 ,  G03G2215/00054 ,  G03G2215/00763 ,  G03G2215/1623

摘要： In an electrophotographic image forming apparatus, the density of a dot image is stabilized by detecting the toner density of a first standard toner image having toners of a uniform density formed on a photoconductor, adjusting the development bias voltage applied to a development device according to the detected toner density. The adjusted development bias voltage is used to form on the photoconductor a second standard toner image having toners of dots with predetermined spaces there between. Then, an area ratio of dot area to unit area of the second standard toner image is detected and is used to control the image forming conditions of the image forming apparatus to stabilize the density of a dot image.

摘要翻译： 在电子照相图像形成装置中，通过检测具有形成在感光体上的具有均匀密度的调色剂的第一标准调色剂图像的调色剂浓度来调节点图像的浓度，调整施加到显影装置上的显影偏压 检测到调色剂浓度。 经调整的显影偏压用于在光电导体上形成具有其间具有预定空间的点墨粉的第二标准调色剂图像。 然后，检测第二标准调色剂图像的点面积与单位面积的面积比，并且用于控制图像形成装置的图像形成条件以稳定点图像的浓度。

公开(公告)号：US5774762A

公开(公告)日：1998-06-30

申请号：US815767

申请日：1997-03-12

申请人： Shinichi Takemoto ,  Yasuyuki Inada ,  Tetsuya Sakai

发明人： Shinichi Takemoto ,  Yasuyuki Inada ,  Tetsuya Sakai

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/02 ,  G03G15/043 ,  G03G15/06

CPC分类号： G03G15/5054 ,  G03G15/1675 ,  G03G15/5041 ,  G03G2215/00042 ,  G03G2215/00054 ,  G03G2215/00763 ,  G03G2215/1623

摘要： In an electrophotographic image forming apparatus, the resistance of an transfer material is detected to which a toner image is transferred. The amount of adhered toners of a standard image is detected, and the development bias voltage is controlled according to the detected amount of adhered toners. Then, the transfer voltage is controlled by taking into account the resistance of the transfer material, the charges of adhered toners and the development bias voltage. Thus, the transfer efficiency is stabilized so that a stable image is formed with reproducible colors and densities. For a dot image, an area ratio of a standard dot toner image is detected, and at least one of an amount of charges for charging the photoconductor uniformly, an intensity of the light beam for exposing the photoconductor and the development bias voltage is controlled according to the detected area ratio.

摘要翻译： 在电子照相图像形成装置中，检测转印材料的电阻，调色剂图像被转印到转印材料上。 检测标准图像的粘附调色剂的量，并且根据检测到的粘附的调色剂的量来控制显影偏压。 然后，通过考虑转印材料的电阻，粘附的调色剂的电荷和显影偏压来控制转印电压。 因此，转印效率稳定，从而形成具有可再现的颜色和密度的稳定图像。 对于点图像，检测标准点调色剂图像的面积比，并且均匀地对感光体充电的电荷量中的至少一个，用于曝光感光体的光束的强度和显影偏压被控制为根据 到检测面积比。