公开(公告)号：US07518625B2

公开(公告)日：2009-04-14

申请号：US11466676

申请日：2006-08-23

申请人： Yoshito Ikeda

发明人： Yoshito Ikeda

IPC分类号： B41J2/435 ,  B41J2/47 ,  H04N1/393

CPC分类号： H04N1/506 ,  G03G15/011 ,  G03G15/5095 ,  G03G2215/0158 ,  G03G2215/0429 ,  G03G2215/047

摘要： An exposing unit optically writes respective color-separated image data on a photosensitive drum to form a latent image by using both a forward direction scanning and a backward direction scanning. A writing control unit outputs input pixel data to the exposing unit a plurality of times for enlarging and printing an input image. The writing control unit includes an output unit that outputs a main-scanning effective gate signal of dot period lengths of common multiples of all available enlargement ratios; and a suppressing unit that suppresses an output of a pixel signal to an outside of a printing range.

摘要翻译： 曝光单元通过使用正向扫描和向后扫描两者来将相应的分色图像数据光学地写入感光鼓上以形成潜像。 写入控制单元将输入像素数据多次输出到曝光单元，以放大和打印输入图像。 写入控制单元包括输出单元，其输出所有可用放大率的公共倍数的点周期长度的主扫描有效栅极信号; 以及抑制单元，其将像素信号的输出抑制到打印范围的外部。

公开(公告)号：US20090079780A1

公开(公告)日：2009-03-26

申请号：US11860507

申请日：2007-09-24

申请人： Carl E. Picciotto ,  Jun Gao

发明人： Carl E. Picciotto ,  Jun Gao

IPC分类号： G03G21/00 ,  B41J29/38 ,  B41J29/393

CPC分类号： B41J29/393 ,  G03G15/5062 ,  G03G2215/0059 ,  G03G2215/00776 ,  G03G2215/0158

摘要： A reference image of an area of a print media is captured at approximately a first time by an image acquisition system. A first application of ink is applied onto the print media area by a printing assembly at the first time. A comparison image of the print media area is captured at a second time by the image acquisition system subsequent to the first application of ink onto the print media area. The reference image and the comparison image are processed to determine a relative displacement of a feature pattern on the print media between approximately the first time and the second time. A second application of ink from the printing assembly onto the print media is adjusted based on the determination.

摘要翻译： 由图像采集系统在大约第一时间捕获打印介质的区域的参考图像。 第一次使用墨水通过印刷组件在印刷介质区域上施加。 在将墨水首次施加到打印介质区域之后，由图像采集系统第二次捕获打印介质区域的比较图像。 处理参考图像和比较图像以在大约第一时间和第二时间之间确定打印介质上的特征图案的相对位移。 基于该确定来调整从打印组件到打印介质的墨水的第二次应用。

公开(公告)号：US20090073515A1

公开(公告)日：2009-03-19

申请号：US12211471

申请日：2008-09-16

申请人： Hajime TAKACHI

发明人： Hajime TAKACHI

IPC分类号： H04N1/46

CPC分类号： G03G15/5008 ,  G03G15/0194 ,  G03G2215/0135 ,  G03G2215/0158

摘要： When forming images in respective colors each being formed on each block obtained by dividing one circumference of a photoreceptor drum into n parts, there are provided an image forming section that has photoreceptor drums respectively for Y, M, C and BK colors which form respective color images, encoder that detects TRIG signal of any one photoreceptor drum, corrected index generating section that corrects reference index signals based on the TRIG signal and generates Y-IDX signals after correction for each image forming color and timing control section that compares the pulse number of Y-IDX signals with the pulse number of reference index signals, and adjusts output timing of image data for Y, M, C and BK colors based on the aforesaid comparison.

摘要翻译： 当通过将感光鼓的一个圆周分成n个部分而获得的每个块上形成各自的各种颜色的图像时，设置有分别具有形成各自颜色的Y，M，C和BK颜色的感光鼓的图像形成部 图像，检测任何一个感光鼓的TRIG信号的编码器，校正索引生成部，其基于TRIG信号校正参考索引信号，并且在对每个图像形成颜色进行校正之后产生Y-IDX信号，并将定时控制部分的脉冲数 Y-IDX信号具有参考索引信号的脉冲数，并且基于上述比较来调整Y，M，C和BK颜色的图像数据的输出定时。

公开(公告)号：US07471307B2

公开(公告)日：2008-12-30

申请号：US11409981

申请日：2006-04-25

申请人： Kazuyuki Iwamoto

发明人： Kazuyuki Iwamoto

IPC分类号： B41J2/47 ,  B41J2/385 ,  B41J15/14 ,  B41J2/435 ,  G02B26/08

CPC分类号： G03G15/011 ,  G03G15/50 ,  G03G2215/0119 ,  G03G2215/0158

摘要： An electrophotographic image forming apparatus senses amounts of color misregistration of toner images, which are formed using n-number (where n is a natural number and n=2 holds) of photosensitive bodies, when light beams from a plurality of light sources are made to deflect and scan across the n-number of photosensitive bodies by a single rotating polygonal mirror. The timing of light emission from the light sources is controlled in such a manner that light beams from the light sources will be deflected and scanned by mirror surfaces of the polygonal mirror, from among the plurality of mirror surfaces that form the polygonal mirror, such that the amount of color misregistration of every toner image will be less than (n−1)/n pixels.

摘要翻译： 电子照相图像形成装置感测当使来自多个光源的光束被制成为使得将来自多个光源的光束制成为感光体的n数（其中n是自然数并且n = 2个保持））形成的调色剂图像的颜色重合失调 通过单个旋转多面镜偏转和扫描n个感光体。 来自光源的光发射的定时被控制为使得来自光源的光束将从形成多面镜的多个反射镜表面中的多面镜的镜面偏转和扫描，使得 每个调色剂图像的颜色重合不足量将小于（n-1）/ n个像素。

公开(公告)号：US20080240788A1

公开(公告)日：2008-10-02

申请号：US11692411

申请日：2007-03-28

申请人： Dale R. Mashtare ,  Martin E. Banton

发明人： Dale R. Mashtare ,  Martin E. Banton

IPC分类号： G03G15/01

CPC分类号： G03G15/0121 ,  G03G2215/0158 ,  G03G2215/0495

摘要： A xerographic system and method use a tri-level development process in which at least one xerographic imaging unit includes a photoreceptor and a pair of developer units. A first developer unit includes a full strength toner of a given color and a second developer unit includes a reduced strength toner of the same or substantially the same color. By use of the tri-level process, excellent color-to-color registration can be achieved for each processed color separation. Moreover, by use of two strengths of the same colorant, a tighter control of the tone reproduction curve can be achieved. Additional xerographic imaging units can include a developer unit that provides spot color, custom color or specialty color capabilities. Additional benefits and gamut expansion can be achieved through use of a tandem architecture. A preferred implementation uses a four drum, eight color tandem architecture with full strength and reduced strength toners formulations of Cyan, Magenta, Yellow, and Black (CYMK) colorant.

摘要翻译： 静电复印系统和方法使用三级开发过程，其中至少一个静电复印成像单元包括感光体和一对显影剂单元。 第一显影剂单元包括给定颜色的全强度调色剂，第二显影剂单元包括相同或基本上相同颜色的减少强度的调色剂。 通过使用三级处理，可以对每个处理的颜色分离实现优异的颜色到颜色配准。 此外，通过使用相同着色剂的两个强度，可以实现对色调再现曲线的更严格的控制。 附加的静电复印成像单元可以包括提供专色，自定义颜色或特殊颜色能力的显影剂单元。 通过使用串联架构可以实现额外的优点和色域扩展。 优选的实施方案使用具有全部强度和减少强度的青色，品红色，黄色和黑色（CYMK）着色剂调色剂配方的四鼓八色串联结构。

公开(公告)号：US07426043B2

公开(公告)日：2008-09-16

申请号：US10691174

申请日：2003-10-22

申请人： Jeffrey J. Folkins

发明人： Jeffrey J. Folkins

IPC分类号： G06F15/00 ,  G06K1/00 ,  G06K15/00

CPC分类号： G03G15/0131 ,  G03G2215/0158 ,  G03G2215/0174

摘要： What is disclosed is a system and method for minimizing the Inter-Document Zone (IDZ) in printing system architectures with print engines running at constant speed. The asymmetric IDZ precession disclosed herein is intended for those multi-pass systems where there is a difference in required start and stop durations of various transition subsystems such as transfer engagement and disengagement processes. This mode reduces the required inter-document zone region by shifting the zone in accordance with asymmetric timing of start and stop times of processes that must occur during this time. Advantageously, productivity gains are effectuated without altering process speeds.

摘要翻译： 公开的是一种用于在具有以恒定速度运行的打印引擎的打印系统架构中最小化文档间区域（IDZ）的系统和方法。 本文公开的非对称IDZ进动适用于那些在各种过渡子系统（例如转移接合和分离过程）的所需启动和停止持续时间差异的多通道系统。 该模式通过根据在此期间必须发生的进程的启动和停止时间的不对称定时移动区域来减少所需的文档间区域。 有利地，在不改变处理速度的情况下实现生产率增益。

公开(公告)号：US20080213009A1

公开(公告)日：2008-09-04

申请号：US11976519

申请日：2007-10-25

申请人： Mikio Kamoshita ,  Koichi Kudo ,  Masahiko Kato ,  Hideaki Kibune

发明人： Mikio Kamoshita ,  Koichi Kudo ,  Masahiko Kato ,  Hideaki Kibune

IPC分类号： G03G15/20

CPC分类号： G03G15/0131 ,  G03G15/1615 ,  G03G15/1685 ,  G03G2215/00156 ,  G03G2215/0016 ,  G03G2215/0129 ,  G03G2215/0141 ,  G03G2215/0158

摘要： In a belt moving device that is capable of reducing belt speed fluctuation and positional deviation from a target belt position in a sub-scanning direction and performing highly precise position control in a main scanning direction, and an image forming apparatus that uses this belt moving device to prevent color shift in both the main scanning direction and sub-scanning direction of a formed image such that a high-quality image can be formed, belt shift control means reduce shift position variation within a single round trip of an endless belt by feeding back a target value for canceling out the shift position variation within a single round trip of the endless belt and feeding forward a value obtained by multiplying an inverse transfer characteristic of moving means by a transfer characteristic of a target value of the moving means in relation to the control content of the moving means.

摘要翻译： 在能够减少皮带速度变动和副扫描方向上的目标皮带位置的位置偏离并且在主扫描方向上执行高精度位置控制的皮带移动装置中，以及使用该皮带移动装置的图像形成装置 为了防止形成图像的主扫描方向和副扫描方向的颜色偏移，能够形成高质量的图像，带位移控制装置通过反馈减少环形带的单次往返行驶中的位移变化 用于消除环形带的单次往返行驶期间的换档位置变化的目标值，并且将通过将移动装置的反向传递特性乘以移动装置的目标值的传递特性而获得的值相对于 控制移动装置的内容。

公开(公告)号：US20080187364A1

公开(公告)日：2008-08-07

申请号：US12061160

申请日：2008-04-02

申请人： Tetsuo YAMANAKA ,  Kazuhiko Kobayashi ,  Hiroyasu Shijo ,  Yuzoh Katsumata ,  Mineyo Takahashi

发明人： Tetsuo YAMANAKA ,  Kazuhiko Kobayashi ,  Hiroyasu Shijo ,  Yuzoh Katsumata ,  Mineyo Takahashi

IPC分类号： G03G15/00

CPC分类号： G03G15/0194 ,  G03G2215/0158

摘要： An image forming apparatus of the present invention includes image carriers arranged side by side in a preselected direction, developing means each for forming a toner image on one of the image carriers, a drive mechanism for driving in the preselected direction a member to which toner images are to be sequentially transferred from the image carriers one above the other, and image transferring devices each for transferring a toner image from one of the image carriers to the above member. At least during an image forming process, a slip condition is substantially the same throughout all image transfer positions where the image carriers face the member.

摘要翻译： 本发明的图像形成装置包括沿预定方向并排布置的图像载体，用于在其中一个图像载体上形成调色剂图像的显影装置，用于沿预选方向驱动调色剂图像的构件的驱动机构 从图像载体一个一个地依次传送，以及用于将调色剂图像从一个图像载体转印到上述构件的图像转印装置。 至少在图像形成处理期间，在图像载体面向构件的所有图像转印位置中，滑动条件基本相同。

公开(公告)号：US07376376B2

公开(公告)日：2008-05-20

申请号：US11374970

申请日：2006-03-15

申请人： Joh Ebara ,  Toshiyuki Uchida

发明人： Joh Ebara ,  Toshiyuki Uchida

IPC分类号： G03G15/01 ,  B41J2/385 ,  G01D15/16

CPC分类号： G03G15/5008 ,  G03G15/011 ,  G03G2215/0119 ,  G03G2215/0158

摘要： An image forming apparatus includes a plurality of image bearing members configured to bear respective images, an optical writing unit configured to write the respective images on the plurality of image bearing members by deflecting a laser beam on a polygon mirror, a transfer unit configured to transfer the respective images onto an image receiving member, and a controlling unit configured to perform an adjustment of a difference in phase of respective rotation speeds between the plurality of image bearing members at a timing of one of non-image forming operations during a series of image forming operations performed by the plurality of image bearing members, the optical writing unit, and the transfer unit.

摘要翻译： 一种图像形成装置包括：多个图像承载部件，被配置为承载各自的图像;光学写入单元，被配置为通过使多个反射镜上的激光束偏转来将各个图像写入多个图像承载部件;转移单元， 各图像到图像接收部件上，以及控制部，被配置为在一系列图像中的非图像形成操作之一的定时执行多个图像承载部件之间的各个旋转速度的相位差的调整 由多个图像承载部件，光学写入单元和转印单元执行的成形操作。

公开(公告)号：US07366444B2

公开(公告)日：2008-04-29

申请号：US11253695

申请日：2005-10-20

申请人： Toshiaki Takane

发明人： Toshiaki Takane

IPC分类号： G03G15/00

CPC分类号： G03G15/5008 ,  G03G15/0178 ,  G03G2215/00075 ,  G03G2215/0119 ,  G03G2215/0158

摘要： A color image forming apparatus includes a first detecting device that detects a first detection objective and generates a pulse signal having a prescribed voltage, and a second detecting device that detects the second detection objective and generates a pulse signal having the same width and a prescribed voltage. A time measuring device measures a time difference between a time when one of the first and second detecting devices firstly generates a pulse signal and a time when the other one of the first and second detecting devices firstly generates a pulse signal after measuring start. A phase calculation device calculates a difference in phase between the monochrome photoconductive member and mono color photoconductive member in accordance with the time difference. Driving speed of one of the first and second driving motors is controlled so that the phase difference decreases to a prescribed level.

摘要翻译： 彩色图像形成装置包括检测第一检测对象并产生具有规定电压的脉冲信号的第一检测装置和检测第二检测对象的第二检测装置，并生成具有相同宽度和规定电压的脉冲信号 。 时间测量装置测量第一和第二检测装置中的一个首先产生脉冲信号的时间与第一和第二检测装置中的另一个首先在测量开始之后产生脉冲信号的时间之间的时间差。 相位计算装置根据时间差计算单色感光体与单色感光体之间的相位差。 控制第一和第二驱动电动机之一的驱动速度使得相位差降低到规定的水平。