公开(公告)号：US20120008995A1

公开(公告)日：2012-01-12

申请号：US13177978

申请日：2011-07-07

申请人： Yoshihiro Shigemura ,  Yuri Mizutani ,  Ichiro Okumura ,  Jiro Shirakata

发明人： Yoshihiro Shigemura ,  Yuri Mizutani ,  Ichiro Okumura ,  Jiro Shirakata

IPC分类号： G03G15/01

CPC分类号： G03G15/5037 ,  G03G15/0131 ,  G03G15/0189 ,  G03G15/5041 ,  G03G15/5054 ,  G03G2215/00054 ,  G03G2215/0129 ,  G03G2215/0158

摘要： An image forming apparatus includes a first drum; first code forming means for forming a first electrostatic image code outside a developing zone for a toner image; a second drum; second code forming means for forming a second electrostatic image code outside the developing zone for the toner image; a transfer belt provided with an electrostatic image recording track capable of holding the first electrostatic image code transferred from the first drum to the second drum; transferring means for applying a voltage to a side of the transfer belt which is opposite a side contactable to the first drum to transfer the first electrostatic image code onto the electrostatic image recording track; detecting means including an electroconductive member provided which is parallel with the electrostatic image code and which is spaced from a surface of the electrostatic image code of the electrostatic image recording track to be detected with a predetermined gap, and a detecting portion for detecting an induced current generated in the electroconductive member with relative movement relative to the lines of the electrostatic image code, the detecting means detecting the first electrostatic image code of the electrostatic image recording track and the second electrostatic image code of the second drum at a position of the second drum; and control means for controlling image formation on the first drum or the second drum on the basis of a detection result of the detecting means such that the toner image on the second drum is transferred onto a recording material on the transfer belt and overlaid on the toner image transferred onto the recording material from the first drum.

摘要翻译： 图像形成装置包括：第一鼓; 第一代码形成装置，用于在调色剂图像的显影区域之外形成第一静电图像代码; 第二鼓; 第二代码形成装置，用于在调色剂图像的显影区域外部形成第二静电图像代码; 设置有静电图像记录轨道的转印带，其能够将从第一鼓转印的第一静电图像代码保持到第二滚筒; 转印装置，用于将电压施加到转印带的与第一滚筒可接触的一侧相反的一侧，以将第一静电图像代码转印到静电图像记录轨道上; 检测装置，包括设置有与静电图像代码平行的导电部件，并且与要被检测的静电图像记录轨道的静电图像代码的表面间隔开预定间隙;以及检测部分，用于检测感应电流 在所述导电构件中相对于所述静电图像代码的线相对移动地产生，所述检测装置在所述第二鼓的位置处检测静电图像记录轨道的第一静电图像代码和第二鼓的第二静电图像代码 ; 以及控制装置，用于根据检测装置的检测结果控制第一滚筒或第二滚筒上的图像形成，使得第二滚筒上的调色剂图像转印到转印带上的记录材料上，并重叠在调色剂上 图像从第一鼓转印到记录材料上。

公开(公告)号：US20100028027A1

公开(公告)日：2010-02-04

申请号：US12518768

申请日：2007-12-12

申请人： Ralph Dorfner

发明人： Ralph Dorfner

IPC分类号： G03G15/00 ,  G01R27/26

CPC分类号： G03G15/5041 ,  G03G2215/00037 ,  G03G2215/00054

摘要： In a method or system for processing a measurement signal for detecting a property of a toner mark, the toner mark is produced and detected. A measurement signal is output, a signal curve of the measurement signal being determined. A temporal measurement window is provided for detecting a property of the toner mark, the temporal measurement window having a beginning and an end. A plausibility check is carried out of the determined signal curve wherein a maximum value and a minimum value of the signal curve are determined, a first difference value between a maximum value and the minimum value is determined, a first temporal distance is determined between an occurrence of the maximum value and an occurrence of the minimum value, a second temporal distance is determined between at least one of the beginning and end of the measurement window and the occurrence of at least one of the maximum value and the minimum value, and a second difference value is determined between a first distance of the maximum value from a reference value and a second distance of the minimum value from the reference value, and the second determined difference value is compared to at least one of a defined minimum difference value and a defined maximum difference value.

摘要翻译： 在用于处理用于检测调色剂标记的性质的测量信号的方法或系统中，产生并检测调色剂标记。 输出测量信号，确定测量信号的信号曲线。 提供了用于检测调色剂标记的属性的时间测量窗口，该时间测量窗口具有开始和结束。 对所确定的信号曲线进行合理性检查，其中确定信号曲线的最大值和最小值，确定最大值与最小值之间的第一差分值，在发生之间确定第一时间距离 的最大值和最小值的出现，在测量窗口的开始和结束的至少一个与最大值和最小值中的至少一个之间确定第二时间距离，第二时间距离 在从参考值的最大值的第一距离和最小值与参考值的第二距离之间确定差值，并将第二确定的差值与定义的最小差值和定义的最小值中的至少一个进行比较 最大差值。

公开(公告)号：US07612570B2

公开(公告)日：2009-11-03

申请号：US11847790

申请日：2007-08-30

申请人： Hiroyuki Suhara

发明人： Hiroyuki Suhara

IPC分类号： G01R31/305

CPC分类号： G01R31/305 ,  G03G15/5037 ,  G03G2215/00033 ,  G03G2215/00054 ,  H01J37/244 ,  H01J37/268 ,  H01J2237/0047 ,  H01J2237/0048 ,  H01J2237/2444 ,  H01J2237/24564 ,  H01J2237/2594

摘要： A surface-potential distribution measuring apparatus includes an electron gun, an electron-beam optical system, an electron-emission panel, a detector, and a control system. The electron-beam optical system is located between the electron gun and a sample, and focuses a beam of electrons emitted from the electron gun to the surface of the sample. The electron-emission panel is located near the sample to be collided with at least part of the electrons via the sample, and emits secondary electrons corresponding to the number of collided electrons. The detector detects at least part of the secondary electrons. The control system obtains potential distribution on the surface of the sample based on a detection result obtained by the detector.

摘要翻译： 表面电位分布测量装置包括电子枪，电子束光学系统，电子发射面板，检测器和控制系统。 电子束光学系统位于电子枪和样品之间，并将从电子枪发射的电子束聚焦到样品的表面。 电子发射面板位于样品附近，通过样品与至少部分电子碰撞，并发射对应于碰撞电子数的二次电子。 检测器检测至少部分二次电子。 控制系统根据检测器得到的检测结果，获得样品表面的电位分布。

公开(公告)号：US20070047986A1

公开(公告)日：2007-03-01

申请号：US11465971

申请日：2006-08-21

申请人： Takashi Fujimori ,  Yoritsugu Maeda ,  Satoru Kanno

发明人： Takashi Fujimori ,  Yoritsugu Maeda ,  Satoru Kanno

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/5058 ,  G03G15/0173 ,  G03G2215/00054 ,  G03G2215/00059 ,  G03G2215/0177

摘要： The present invention performs density adjustment (ATR process) and transfer voltage control (ATVC) in parallel; the ATR process transfers and forms a patch image on an intermediate transfer member and detects and adjusts the density of the patch image, and the ATVC gradually raises a transfer voltage to measure a transfer current and generates a transfer voltage corresponding to a target transfer current to control a transfer of an image from an image carrier to the intermediate transfer member. The present invention determines the timing at which the patch image is formed in the density adjustment, in association with the transfer voltage in the transfer voltage control step, to allow a density adjustment process based on density adjustment and transfer voltage control to be executed in parallel.

摘要翻译： 本发明并行执行密度调节（ATR处理）和转印电压控制（ATVC）; ATR处理在中间转印部件上传送并形成贴片图像，并检测并调整贴片图像的浓度，并且ATVC逐渐升高转印电压以测量转印电流，并产生对应于目标转印电流的转印电压 控制图像从图像载体到中间转印部件的转印。 本发明与转印电压控制步骤中的转印电压相关联地确定在浓度调节中形成贴片图像的定时，以便能够并行地执行基于浓度调节和转印电压控制的浓度调整处理 。

公开(公告)号：US06885833B2

公开(公告)日：2005-04-26

申请号：US10176956

申请日：2002-06-21

申请人： Eric C. Stelter ,  Kenneth P. Friedrich ,  Joseph Guth

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

IPC分类号： G03G15/00

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。 用于测量光电导体上显影图像的浓度的光密度计76或用于检测感光体上的图像的电压的静电计50a或50b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：US06750892B2

公开(公告)日：2004-06-15

申请号：US09904093

申请日：2001-07-13

申请人： Takayoshi Suzuki

发明人： Takayoshi Suzuki

IPC分类号： B41J2385

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G15/5037 ,  G03G2215/00054 ,  G03G2215/00059 ,  G03G2215/00067 ,  G03G2215/0119 ,  G03G2215/0151 ,  H04N1/4015

摘要： Based on the density of an image formed on a photosensitive member or an image recording medium, an amount of correction for uniformalizing the image density in a main scanning direction of a light beam is set. Based on the set amount of correction, the intensity of a light beam in an image region is corrected within a range of one main scan.

摘要翻译： 基于形成在感光构件或图像记录介质上的图像的浓度，设置用于使光束的主扫描方向上的图像浓度均匀化的校正量。 基于设定的校正量，在一次主扫描的范围内校正图像区域中的光束的强度。

公开(公告)号：US06684036B2

公开(公告)日：2004-01-27

申请号：US10092522

申请日：2002-03-08

申请人： Keisuke Kubota ,  Teruaki Mitsuya ,  Hiroyuki Mabuchi ,  Masayoshi Ishii ,  Shinichi Akatsu

发明人： Keisuke Kubota ,  Teruaki Mitsuya ,  Hiroyuki Mabuchi ,  Masayoshi Ishii ,  Shinichi Akatsu

IPC分类号： G03G1500

CPC分类号： G03G15/5037 ,  G03G15/065 ,  G03G2215/00054

摘要： An image forming apparatus restricts disturbance of a potential patch in the case where a potential sensor for detecting the potential patch is provided downstream of a developing device of a multiple developing roller type so as to enable stable reproduction of a high quality image for a long period. The apparatus includes a potential sensor provided downstream in the moving direction of the image carrier relative to the developing device for detecting a potential on the image carrier, and a controller for setting the developing bias to a value restricting disturbance of a potential portion as an object for potential detection by the potential sensor by the developer when the potential portion passes across the developing device.

摘要翻译： 在用于检测电位贴片的潜在传感器设置在多重显影辊型的显影装置的下游的情况下，图像形成装置限制电位贴片的干扰，以便能够长期稳定再现高品质图像 。 该装置包括相对于显影装置在图像载体的移动方向下游设置用于检测图像载体上的电位的电位传感器，以及用于将显影偏压设定为限制作为对象的电位部分的干扰的值的控制器 用于当潜在部分穿过显影装置时由显影剂通过潜在的传感器进行潜在的检测。

公开(公告)号：US06665502B2

公开(公告)日：2003-12-16

申请号：US09873292

申请日：2001-06-05

申请人： Fumitake Hirobe ,  Shigeo Kimura

发明人： Fumitake Hirobe ,  Shigeo Kimura

IPC分类号： G03G1500

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

摘要： The present invention concerns controlling a potential used to form an electrostatic image for image formation. According to the invention, an electrostatic latent image is formed on an image bearing member using, for example, a potential stored in a memory. The potential of the latent image is detected, and if the potential is not within a specified range, the potential is controlled (i.e., changed) to form another latent image with the changed potential. The latent image is then developed and the density of the developed image detected. In one embodiment, the amount of developer to be replenished is then controlled based upon the detected density and a target potential value, where the target potential value is determined and set based on the detected density and the potential used in the potential controlling step. In a related embodiment, when a result of the potential obtained after termination of a normal image formation process is out of a designated range, potential control is performed after termination of a next normal image formation process.

摘要翻译： 本发明涉及控制用于形成用于图像形成的静电图像的电位。 根据本发明，使用例如存储在存储器中的电位，在图像承载部件上形成静电潜像。 检测潜像的电位，如果电位不在规定范围内，则电位被控制（即改变），形成具有变化的电位的另一潜像。 然后显影潜像，并检测显影图像的浓度。 在一个实施例中，然后基于检测到的密度和目标电位值来控制要补充的显影剂的量，其中基于检测到的浓度和在电势控制步骤中使用的电位来确定和设定目标电势值。 在相关实施例中，当在正常图像形成处理结束之后获得的电位的结果超出指定范围时，在下一个正常图像形成处理结束之后执行电位控制。

公开(公告)号：US20030086717A1

公开(公告)日：2003-05-08

申请号：US10214940

申请日：2002-08-09

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Woo-jung Shim ,  Min-Seon Kim

IPC分类号： G03G015/00

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

摘要： A toner reproduction curve (TRC) control method is provided. The TRC method for controlling a printer including a color toner density (CTD) sensor includes the steps of (a) measuring a development potential VB, a charging potential VO, an exposure potential VR, and a development current Id and evaluating a development vector VD, which is the difference between the development potential VB and the exposure potential VR, and a backplating vector VBP, which is the difference between the charging potential VO and the exposure potential VR; (b) forming a TRC space using TRC data detected from the CTD sensor; (c) obtaining a TRC characteristic function from the TRC data, the development vector VDnullx, the backplating vector VBPnully, and the development current Idnullz; (d) forming an RTRC by setting TRC data, whose covariance is smaller than a threshold value among the detected TRC data, as RTRC data; and (e) measuring TRC data, comparing the measured TRC data with the RTRC data to calculate control parameter values, and controlling the printer using the control parameter values. The TRC method does not require other sensors but the CTD sensor. By using internal parameters covering environmental changes, the charging potential of a photosensitive body, a state of a developer, and the efficiency of a charger can be estimated, thereby realizing efficient TRC control.

摘要翻译： 提供调色剂再现曲线（TRC）控制方法。 用于控制包括彩色调色剂密度（CTD）传感器的打印机的TRC方法包括以下步骤：（a）测量显影电位VB，充电电位VO，曝光电位VR和显影电流Id，并评估显影矢量VD ，其是显影电位VB和曝光电位VR之间的差异，以及作为充电电位VO和曝光电位VR之间的差的背板矢量VBP; （b）使用从CTD传感器检测的TRC数据形成TRC空间; （c）从TRC数据获得TRC特征函数，开发向量VD = x，背板矢量VBP = y，显影电流Id = z; （d）通过将检测到的TRC数据中的协方差小于阈值的TRC数据设置为RTRC数据来形成RTRC; 和（e）测量TRC数据，将测量的TRC数据与RTRC数据进行比较以计算控制参数值，以及使用控制参数值来控制打印机。 TRC方法不需要其他传感器，但不需要CTD传感器。 通过使用覆盖环境变化的内部参数，可以估计感光体的充电电位，显影剂的状态和充电器的效率，从而实现有效的TRC控制。

公开(公告)号：US20030058325A1

公开(公告)日：2003-03-27

申请号：US10235823

申请日：2002-09-06

申请人： Dainippon Screen Mfg. Co., Ltd.

发明人： Tamio Fukui

IPC分类号： G03G015/00

CPC分类号： H04N1/4005 ,  G03G15/043 ,  G03G15/326 ,  G03G2215/00054 ,  G06K15/128 ,  H04N1/40037

摘要： An electrophotographic apparatus includes a controller having an image processor and an image storage unit. The controller is connected to a recording head having a light source and a light source driver, and to a surface electrometer. Based on surface potentials of a latent image area on a photoreceptor measured by the surface electrometer, the image processor of the controller processes image signals stored in the image storage unit or controls the light source driver to correct the intensity of a light beam emitted from the light source.

摘要翻译： 电子照相设备包括具有图像处理器和图像存储单元的控制器。 控制器连接到具有光源和光源驱动器的记录头以及表面静电计。 基于由表面静电计测量的感光体上的潜像区域的表面电位，控制器的图像处理器处理存储在图像存储单元中的图像信号，或者控制光源驱动器，以校正从 光源。