公开(公告)号：US08487973B2

公开(公告)日：2013-07-16

申请号：US13315417

申请日：2011-12-09

申请人： Izumi Kinoshita ,  Kunihiro Komai ,  Tatsuya Miyadera

发明人： Izumi Kinoshita ,  Kunihiro Komai ,  Tatsuya Miyadera

IPC分类号： B41J2/435 ,  B41J2/385

CPC分类号： B41J2/447 ,  B41J2/473 ,  G02B26/127 ,  G06K15/1219

摘要： An optical writing device forms an electrostatic latent image on a photosensitive element by a connected light source controlled by a light source control circuit that includes: a pixel data output unit; a pixel data correcting unit that corrects a skew between main scanning line of electrostatic latent image and photosensitive element and a local deviation of the electrostatic latent image on the main scanning line, and outputs pixel data; a pattern generating unit that outputs pixel data for forming a predetermined pattern in an electrostatic latent image; a first light source control unit for causing a first light source, that needs correction of the local deviation, to emit light; a second light source control unit for causing a second light source, that does not need correction of the local deviation, to emit light; and a switch that switches between a first transmission status and a second transmission status.

摘要翻译： 光学写入装置通过由光源控制电路控制的连接的光源在感光元件上形成静电潜像，该光源控制电路包括：像素数据输出单元; 像素数据校正单元，其校正静电潜像的主扫描线与感光元件之间的偏斜和主扫描线上的静电潜像的局部偏差，并输出像素数据; 图案生成单元，其输出用于在静电潜像中形成预定图案的像素数据; 第一光源控制单元，用于使需要校正局部偏差的第一光源发光; 第二光源控制单元，用于使不需要校正局部偏差的第二光源发光; 以及在第一传输状态和第二传输状态之间切换的开关。

公开(公告)号：US08194266B2

公开(公告)日：2012-06-05

申请号：US12333621

申请日：2008-12-12

申请人： Tatsuya Miyadera ,  Kenji Asuwa ,  Izumi Kinoshita ,  Hiroaki Ikeda ,  Tatsuya Ozaki ,  Yasuo Matsuyama ,  Hirokazu Iwata

发明人： Tatsuya Miyadera ,  Kenji Asuwa ,  Izumi Kinoshita ,  Hiroaki Ikeda ,  Tatsuya Ozaki ,  Yasuo Matsuyama ,  Hirokazu Iwata

IPC分类号： G06F3/12 ,  G06K15/00

CPC分类号： G06K15/129 ,  G03G15/0131 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/0141 ,  G03G2215/0161 ,  G06K15/1219

摘要： A positional error detection method forms, on a belt which is transported in a transport direction, positional error detection marks for detecting a positional error between image positions of first and second colors, detects the positional error detection marks on the belt, and computes the positional error based on the detected positional error detection marks. The positional error detection marks include first and second marks which are inclined in mutually opposite directions with respect to the transport direction, and third marks which are perpendicular to the transport direction.

摘要翻译： 位置误差检测方法在传送方向上传送的带上形成用于检测第一和第二颜色的图像位置之间的位置误差的位置误差检测标记，检测带上的位置错误检测标记，并计算位置 基于检测到的位置错误检测标记的错误。 位置误差检测标记包括相对于输送方向相互相反的方向倾斜的第一和第二标记以及与输送方向垂直的第三标记。

公开(公告)号：US08004546B2

公开(公告)日：2011-08-23

申请号：US12359372

申请日：2009-01-26

申请人： Tatsuya Miyadera

发明人： Tatsuya Miyadera

IPC分类号： B41J2/385 ,  G03G15/01

CPC分类号： G03G15/0194 ,  G03G2215/0125 ,  G03G2215/0161

摘要： A deviation amount detecting device for use in an electrophotographic color image forming device is configured to detect whether a deviation for each of toner images of different colors on a transporting member takes place, based on position information which is stored as a result of reading of a first set of deviation detecting patterns by a pattern reading unit.

摘要翻译： 用于电子照相彩色图像形成装置的偏差量检测装置被配置为基于作为读取的结果存储的位置信息来检测是否发生对传送构件上的不同颜色的调色剂图像的偏差 通过图案读取单元的第一组偏差检测图案。

公开(公告)号：US07791628B2

公开(公告)日：2010-09-07

申请号：US12353278

申请日：2009-01-14

申请人： Tatsuya Miyadera

发明人： Tatsuya Miyadera

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0141 ,  G03G2215/0161

摘要： A deviation amount detecting device for use in an electrophotographic color image forming device is configured to correct, during an inter-cycle period in which computation of a first deviation amount using a result of reading of deviation detection patterns is held in a waiting state, a second deviation amount computed using a result of measurement of a scanning time of a light beam, based on a first deviation amount computed at a latest cycle, so that a corrected amount of deviation of a main scanning direction and a corrected amount of deviation of a sub-scanning direction are computed.

摘要翻译： 在电子照相彩色图像形成装置中使用的偏差量检测装置被配置为在使用偏差检测图案的读取结果的第一偏差量的计算保持在等待状态的周期间期间， 基于在最后一个周期计算的第一偏差量，使用光束的扫描时间的测量结果计算出的第二偏差量，使得校正的主扫描方向的偏差量和校正偏差量 计算副扫描方向。

公开(公告)号：US20090324263A1

公开(公告)日：2009-12-31

申请号：US12457921

申请日：2009-06-25

申请人： Yoshiyuki Shimizu ,  Takafumi Miyazaki ,  Kozo Yamazaki ,  Hideyuki Masumoto ,  Tatsuya Miyadera

发明人： Yoshiyuki Shimizu ,  Takafumi Miyazaki ,  Kozo Yamazaki ,  Hideyuki Masumoto ,  Tatsuya Miyadera

IPC分类号： G03G15/00

CPC分类号： H04N1/00541 ,  B65H1/04 ,  B65H1/14 ,  B65H3/0607 ,  B65H3/5261 ,  B65H5/062 ,  B65H5/24 ,  B65H29/60 ,  B65H2402/30 ,  B65H2402/441 ,  B65H2404/6111 ,  B65H2404/632 ,  B65H2405/31 ,  B65H2405/3321 ,  B65H2511/414 ,  B65H2511/415 ,  B65H2601/324 ,  B65H2701/186 ,  B65H2801/06 ,  G03G15/6508 ,  H04N1/00519 ,  H04N1/00543 ,  H04N1/0057 ,  H04N1/00596 ,  H04N1/00602 ,  H04N1/00612 ,  H04N1/00623 ,  H04N2201/0082 ,  H04N2201/0091 ,  B65H2220/02 ,  B65H2220/01

摘要： An image forming apparatus includes a dual purpose tray that accommodates a document and a transfer sheet, a document transport mechanism to transport the document from the dual purpose tray to an image reading position, an image reading mechanism disposed beneath the document transport mechanism, an image forming mechanism disposed beneath the image reading mechanism, a transfer sheet transport mechanism to transport the transfer sheet from a bifurcation point through the image reading mechanism, a sheet feeding path that bifurcates into a first transport path through which the document is transported to the image reading position and a second transport path through which the transfer sheet is transported through the image reading mechanism to an image forming position by switching a switching member in accordance with one of a type of a recording medium set on the dual purpose tray and an operation mode of the image forming apparatus.

摘要翻译： 图像形成装置包括容纳文件和转印纸的双用途托盘，用于将文件从双用途托盘运送到图像读取位置的文件传送机构，设置在文件传送机构下方的图像读取机构，图像 形成机构，其设置在图像读取机构下方，转印纸张传送机构，用于将转印纸从分叉点输送通过图像读取机构;纸张馈送路径，其分叉成文档被传送到图像读取的第一传送路径 位置和第二传送路径，转印纸通过图像读取机构传送到图像形成位置，通过根据设置在双用途托盘上的记录介质的类型之一切换切换构件和操作模式 图像形成装置。

公开(公告)号：US20090185816A1

公开(公告)日：2009-07-23

申请号：US12353278

申请日：2009-01-14

申请人： Tatsuya Miyadera

发明人： Tatsuya Miyadera

IPC分类号： G03G15/043

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0141 ,  G03G2215/0161

摘要： A deviation amount detecting device for use in an electrophotographic color image forming device is configured to correct, during an inter-cycle period in which computation of a first deviation amount using a result of reading of deviation detection patterns is held in a waiting state, a second deviation amount computed using a result of measurement of a scanning time of a light beam, based on a first deviation amount computed at a latest cycle, so that a corrected amount of deviation of a main scanning direction and a corrected amount of deviation of a sub-scanning direction are computed.

摘要翻译： 在电子照相彩色图像形成装置中使用的偏差量检测装置被配置为在使用偏差检测图案的读取结果的第一偏差量的计算保持在等待状态的周期间期间， 基于在最后一个周期计算的第一偏差量，使用光束的扫描时间的测量结果计算出的第二偏差量，使得校正的主扫描方向的偏差量和校正偏差量 计算副扫描方向。

公开(公告)号：US20080212986A1

公开(公告)日：2008-09-04

申请号：US12003975

申请日：2008-01-04

申请人： Tatsuya Miyadera

发明人： Tatsuya Miyadera

IPC分类号： G03G15/01

CPC分类号： G03G15/011 ,  G03G2215/0141 ,  G03G2215/0161

摘要： An image forming method exposes image bearing members by simultaneously reflecting light beams corresponding to different colors by different reflection surfaces of a polygon mirror, transforms electrostatic latent images formed on the image bearing members into toner images for correction, transfers the toner images in an overlapping manner onto a transfer body, and calibrates overlapping positions of the toner images based on an optical detection of the toner images. The toner images are arranged at positions on the transfer body such that the toner images of different colors have no overlap therebetween, even if the toner images shift in a direction perpendicular to the transport direction due to a color registration error. Two first toner images simultaneously formed by two corresponding light beams reflected by one reflection surface of the polygon mirror are arranged adjacent to each other in a transport direction of the transfer body, and are sandwiched by two second toner images simultaneously formed by the two corresponding light beams reflected by the one reflection surface of the polygon mirror along the transport direction.

摘要翻译： 图像形成方法通过同时反射由多面镜的不同反射面对应于不同颜色的光束来曝光图像承载部件，将形成在图像承载部件上的静电潜像转换成用于校正的调色剂图像，以重叠的方式转印调色剂图像 并且基于调色剂图像的光学检测来校准调色剂图像的重叠位置。 调色剂图像被布置在转印体上的位置，使得即使调色剂图像由于颜色配准误差而在垂直于输送方向的方向上移动，所以不同颜色的调色剂图像之间没有重叠。 通过由多面镜的一个反射面反射的两个对应的光束同时形成的两个第一调色剂图像在转印体的输送方向上彼此相邻布置，并且被两个相应的光同时形成的两个第二调色剂图像夹持 沿着输送方向由多面镜的一个反射面反射的光束。

公开(公告)号：US10067440B2

公开(公告)日：2018-09-04

申请号：US14851591

申请日：2015-09-11

申请人： Tatsuya Miyadera

发明人： Tatsuya Miyadera

IPC分类号： G06F15/00 ,  G03G15/043

摘要： A write-control apparatus for receiving one page worth of image data, applying processes, and writing an image by exposing a photoconductor according to the processes-applied image data is provided. The write-control apparatus includes a write-control unit for including different process-function units for applying the processes; a control unit for generating setting values of parameters used by the process-function units; and a first storage for storing the generated setting values of the parameters. The write-control unit generates a second timing signal which asserts earlier than a first timing signal which starts writing the image by operating the process-function units, a second storage stores the one page worth of the setting values stored in the first storage according to an assert timing of the second timing signal, and the setting values stored in the second storage are reflected in operations of the process-function units for writing the image of the page.

公开(公告)号：US10012925B2

公开(公告)日：2018-07-03

申请号：US15600385

申请日：2017-05-19

申请人： Tatsuya Miyadera ,  Muneaki Iwata ,  Hayato Fujita

发明人： Tatsuya Miyadera ,  Muneaki Iwata ,  Hayato Fujita

IPC分类号： G06F15/00 ,  G03G15/043 ,  G03G15/04 ,  H04N1/40 ,  G06K15/02 ,  G06K15/12

CPC分类号： G03G15/043 ,  G03G15/04045 ,  G06K15/12 ,  G06K15/1873 ,  H04N1/40056 ,  H04N1/40068

摘要： An image forming apparatus includes a photoconductor, a light source, and circuitry that receives: first image data including first pixels each indicating image density or one of turning on and off the light source; and tag data indicating an attribute of each first pixels. The circuitry sets specific data to identify a first target pixel subjected to change out of the first pixels, converts the first image data into second image data having a higher resolution than that of the first image data, and controls the light source according to the second image data to form an image. In conversion, the circuitry identifies a second target pixel corresponding to the first target pixel out of second pixels of the second image data according to the specific data and the tag data, and changes the second target pixel into a pixel to turn on the light source.

公开(公告)号：US09881240B2

公开(公告)日：2018-01-30

申请号：US15413888

申请日：2017-01-24

申请人： Tatsuya Miyadera

发明人： Tatsuya Miyadera

IPC分类号： G06K15/02 ,  G03G15/01 ,  H04N1/29 ,  H04N1/40 ,  H04N1/405

CPC分类号： G06K15/1876 ,  G03G15/01 ,  G03G15/04027 ,  G03G15/043 ,  G06K15/027 ,  H04N1/29 ,  H04N1/3877 ,  H04N1/40068 ,  H04N1/405 ,  H04N1/4051

摘要： An image processing device includes a dithering circuit, a gradation correction pattern generating circuit, and a gradation correction pattern correcting circuit. The dithering circuit performs a dithering process on image data to generate dithered image data. The gradation correction pattern generating circuit sets, in multi-valued data, gradation information of each of pixels of the generated dithered image data, and generates a gradation correction pattern imitating the dithered image data. The gradation correction pattern correcting circuit performs pattern matching on the generated gradation correction pattern, and corrects the generated gradation correction pattern in accordance with a result of the pattern matching.