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1. 发明授权

US07636533B2 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US07636533B2
公开(公告)日：2009-12-22
申请号：US11787149
申请日：2007-04-12
申请人： Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita , Kengo Matsuyama , Yutaka Eba , Tetsushi Ito
发明人： Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita , Kengo Matsuyama , Yutaka Eba , Tetsushi Ito
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G15/0194 , G03G2215/0119 , G03G2215/0132 , G03G2215/0161
摘要： A color image forming apparatus including: a plurality of drum-type photoconductors for forming an image in a different color on each peripheral surface and the photoconductors having at least two different diameters; a plurality of driving sections for driving each photoconductor at a driving speed in accordance with the diameter so that each photoconductor rotates at a predetermined peripheral speed; a correction signal output section for outputting a speed correction signal to correct a periodic pitch fluctuation included in each formed image; and a drive control section for controlling the driving section to correct the driving speed of each photoconductor by the speed correction signal, wherein the speed correction signal is a signal having the same cycle as a rotational cycle of each photoconductor.
摘要翻译：一种彩色图像形成装置，包括：用于在每个外围表面上形成不同颜色的图像的多个鼓型光电导体和具有至少两个不同直径的光电导体; 多个驱动部分，用于根据直径以驱动速度驱动每个感光体，使得每个感光体以预定的圆周速度旋转; 校正信号输出部分，用于输出速度校正信号以校正每个形成的图像中包括的周期性音调波动; 以及驱动控制部分，用于控制驱动部分以通过速度校正信号校正每个感光体的驱动速度，其中速度校正信号是具有与每个感光体的旋转周期相同周期的信号。

2. 发明申请

US20070071510A1 Image forming apparatus and image forming adjustment method 有权
标题翻译：图像形成装置和图像形成调整方法
公开(公告)号：US20070071510A1
公开(公告)日：2007-03-29
申请号：US11523321
申请日：2006-09-18
申请人： Kengo Matsuyama , Yoshikazu Harada , Norio Tomita
发明人： Kengo Matsuyama , Yoshikazu Harada , Norio Tomita
IPC分类号： G03G15/01
CPC分类号： G03G15/5008 , G03G2215/0008
摘要： Multiple photoconductive drums on which images with different color components are formed respectively are rotated using individual motors, multiple adjustment images are formed at a predetermined interval along the cycle length of one rotation of each photoconductive drum, the reference phases for the rotation of the respective photoconductive drums are determined based on the maximum portions of the divergences between the predetermined interval and the detection interval of each adjustment image, and the individual motors are controlled so that the respective reference phases determined are aligned. The image forming region corresponding to the cycle length of one rotation of the photoconductive drum is divided into four or more even numbered regions, the, divergence amount of each region is calculated, and the maximum portions of the divergences are determined based on the difference between the divergence amounts of the divided regions being away from each other by a half cycle length.
摘要翻译：分别在其上分别形成具有不同颜色分量的图像的多个感光鼓被旋转，使用各个电动机，沿着每个感光鼓的一个旋转的周期长度以预定间隔形成多个调整图像，用于各个感光鼓旋转的参考相位基于预定间隔和每个调整图像的检测间隔之间的差异的最大部分来确定滚筒，并且控制各个马达，使得确定的各个参考相对齐。对应于感光鼓的一圈旋转长度的图像形成区域被划分为四个或更多个偶数区域，计算每个区域的发散量，并且基于区域的差异来确定偏差的最大部分分割区域的发散量彼此远离半周期长度。

3. 发明授权

US07949289B2 Image forming apparatus and image forming adjustment method 有权
标题翻译：图像形成装置和图像形成调整方法
公开(公告)号：US07949289B2
公开(公告)日：2011-05-24
申请号：US11523321
申请日：2006-09-18
申请人： Kengo Matsuyama , Yoshikazu Harada , Norio Tomita
发明人： Kengo Matsuyama , Yoshikazu Harada , Norio Tomita
IPC分类号： G03G15/01
CPC分类号： G03G15/5008 , G03G2215/0008
摘要： Multiple photoconductive drums on which images with different color components are formed respectively are rotated using individual motors, multiple adjustment images are formed at a predetermined interval along the cycle length of one rotation of each photoconductive drum, the reference phases for the rotation of the respective photoconductive drums are determined based on the maximum portions of the divergences between the predetermined interval and the detection interval of each adjustment image, and the individual motors are controlled so that the respective reference phases determined are aligned. The image forming region corresponding to the cycle length of one rotation of the photoconductive drum is divided into four or more even-numbered regions, the divergence amount of each region is calculated, and the maximum portions of the divergences are determined based on the difference between the divergence amounts of the divided regions being away from each other by a half cycle length.
摘要翻译：分别在其上分别形成具有不同颜色分量的图像的多个感光鼓被旋转，使用各个电动机，沿着每个感光鼓的一个旋转的周期长度以预定间隔形成多个调整图像，用于各个感光鼓旋转的参考相位基于预定间隔和每个调整图像的检测间隔之间的差异的最大部分来确定滚筒，并且控制各个马达，使得确定的各个参考相对齐。对应于感光鼓的一个旋转周期的图像形成区域被划分为四个或更多个偶数区域，计算每个区域的发散量，并且基于区域的差异来确定分歧的最大部分分割区域的发散量彼此远离半周期长度。

4. 发明授权

US07619642B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07619642B2
公开(公告)日：2009-11-17
申请号：US11371975
申请日：2006-03-08
申请人： Kengo Matsuyama , Norio Tomita , Yoshikazu Harada , Kenji Tanaka
发明人： Kengo Matsuyama , Norio Tomita , Yoshikazu Harada , Kenji Tanaka
IPC分类号： B41J2/385 , B41J2/415 , G01D15/06 , G03G15/01
CPC分类号： G03G15/0131 , G03G2215/0119 , G03G2215/0161
摘要： An image forming apparatus in which a plurality of color component images of different colors, which include a reference color (e.g. black) serving as a reference and adjustment colors (e.g. cyan, magenta and yellow) to be adjusted, are formed on respective photosensitive drums and then transferred to a transfer belt. Respective positions of the color component images transferred to the transfer belt are detected by a CCD. Timing adjustment can be performed so that the difference between the detected position of each of the color component images and a prescribed position is not more than a predetermined value, based on the reference color image as the reference. In this case, the color component images are formed on the corresponding photosensitive drums with the same timing by utilizing a single polygon mirror.
摘要翻译：一种图像形成装置，其中在各个感光鼓上形成包括用作基准的参考颜色（例如黑色）和要调节的调节颜色（例如，青色，品红色和黄色）的不同颜色的多个颜色分量图像然后转移到转印带上。通过CCD检测转印到转印带上的颜色成分图像的各个位置。可以进行定时调整，使得基于参考彩色图像作为参考，每个颜色分量图像的检测位置与规定位置之间的差不超过预定值。在这种情况下，通过利用单个多面镜，以相同的定时在相应的感光鼓上形成彩色分量图像。

5. 发明申请

US20070242980A1 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US20070242980A1
公开(公告)日：2007-10-18
申请号：US11787149
申请日：2007-04-12
申请人： Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita , Kengo Matsuyama , Yutaka Eba , Tetsushi Ito
发明人： Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita , Kengo Matsuyama , Yutaka Eba , Tetsushi Ito
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G15/0194 , G03G2215/0119 , G03G2215/0132 , G03G2215/0161
摘要： A color image forming apparatus including: a plurality of drum-type photoconductors for forming an image in a different color on each peripheral surface and the photoconductors having at least two different diameters; a plurality of driving sections for driving each photoconductor at a driving speed in accordance with the diameter so that each photoconductor rotates at a predetermined peripheral speed; a correction signal output section for outputting a speed correction signal to correct a periodic pitch fluctuation included in each formed image; and a drive control section for controlling the driving section to correct the driving speed of each photoconductor by the speed correction signal, wherein the speed correction signal is a signal having the same cycle as a rotational cycle of each photoconductor.
摘要翻译：一种彩色图像形成装置，包括：用于在每个外围表面上形成不同颜色的图像的多个鼓型光电导体和具有至少两个不同直径的光电导体; 多个驱动部分，用于根据直径以驱动速度驱动每个感光体，使得每个感光体以预定的圆周速度旋转; 校正信号输出部分，用于输出速度校正信号以校正每个形成的图像中包括的周期性音调波动; 以及驱动控制部分，用于控制驱动部分以通过速度校正信号校正每个感光体的驱动速度，其中速度校正信号是具有与每个感光体的旋转周期相同周期的信号。

6. 发明授权

US07865119B2 Color registration method and image forming apparatus 有权
标题翻译：彩色配准方法和图像形成装置
公开(公告)号：US07865119B2
公开(公告)日：2011-01-04
申请号：US11787147
申请日：2007-04-12
申请人： Kengo Matsuyama , Yoshikazu Harada , Norio Tomita , Yoshiteru Kikuchi , Hirokazu Fujita
发明人： Kengo Matsuyama , Yoshikazu Harada , Norio Tomita , Yoshiteru Kikuchi , Hirokazu Fujita
IPC分类号： G03G15/01
CPC分类号： G03G15/0194 , G03G2215/0161
摘要： A color registration method in a color image forming apparatus including a plurality of drum-type photoconductors for driving some or all of the photoconductors having the same diameter to match pitch fluctuations which correspond to a rotational cycle of the photoconductors, the method including: a first measurement step for forming a first registration image for each color and measuring formation positions of a plurality of predetermined portions in each registration image; a second measurement step for forming a second registration image for each color and measuring formation positions of a plurality of predetermined portions in each registration image; a calculation step for calculating a periodic fluctuation component being contained in the images in different colors and corresponding to the rotational cycle of the photoconductors so as to obtain phases thereof; and a step for adjusting a rotational phase of the photoconductors in order for the obtained phases matching to each other, wherein the interval between first and second registration images in the rotating direction is set such that disturbance components in which a cycle is assumed beforehand, cancel with each other by calculating the deviation.
摘要翻译：一种彩色图像形成装置中的彩色配准方法，该彩色图像形成装置包括用于驱动具有相同直径的一部分或全部感光体的多个鼓式光电导体，以匹配与感光体的旋转周期对应的音调波动，该方法包括：第一测量步骤，用于形成每个颜色的第一登记图像，并测量每个配准图像中的多个预定部分的形成位置; 第二测量步骤，用于形成每种颜色的第二对准图像，并测量每个配准图像中的多个预定部分的形成位置; 计算步骤，用于计算包含在不同颜色的图像中的周期性波动分量，并且对应于感光体的旋转周期，以获得其相位; 以及用于调整所述光电导体的旋转相位以使所获得的相位相互匹配的步骤，其中，将所述旋转方向上的第一和第二对准图像之间的间隔设定为预先假定周期的干扰分量，通过计算偏差。

7. 发明申请

US20070242986A1 Color registration method and image forming apparatus 有权
标题翻译：彩色配准方法和图像形成装置
公开(公告)号：US20070242986A1
公开(公告)日：2007-10-18
申请号：US11787147
申请日：2007-04-12
申请人： Kengo Matsuyama , Yoshikazu Harada , Norio Tomita , Yoshiteru Kikuchi , Hirokazu Fujita
发明人： Kengo Matsuyama , Yoshikazu Harada , Norio Tomita , Yoshiteru Kikuchi , Hirokazu Fujita
IPC分类号： G03G15/01
CPC分类号： G03G15/0194 , G03G2215/0161
摘要： A color registration method in a color image forming apparatus including a plurality of drum-type photoconductors for driving some or all of the photoconductors having the same diameter to match pitch fluctuations which correspond to a rotational cycle of the photoconductors, the method including: a first measurement step for forming a first registration image for each color and measuring formation positions of a plurality of predetermined portions in each registration image; a second measurement step for forming a second registration image for each color and measuring formation positions of a plurality of predetermined portions in each registration image; a calculation step for calculating a periodic fluctuation component being contained in the images in different colors and corresponding to the rotational cycle of the photoconductors so as to obtain phases thereof; and a step for adjusting a rotational phase of the photoconductors in order for the obtained phases matching to each other, wherein the interval between first and second registration images in the rotating direction is set such that disturbance components in which a cycle is assumed beforehand, cancel with each other by calculating the deviation.
摘要翻译：一种彩色图像形成装置中的彩色配准方法，该彩色图像形成装置包括用于驱动具有相同直径的一部分或全部感光体的多个鼓式光电导体，以匹配与感光体的旋转周期对应的音调波动，该方法包括：第一测量步骤，用于形成每个颜色的第一登记图像，并测量每个配准图像中的多个预定部分的形成位置; 第二测量步骤，用于形成每种颜色的第二对准图像，并测量每个配准图像中的多个预定部分的形成位置; 计算步骤，用于计算包含在不同颜色的图像中的周期性波动分量，并且对应于感光体的旋转周期，以获得其相位; 以及用于调整光电导体的旋转相位以使所获得的相位彼此匹配的步骤，其中第一和第二对准图像之间的旋转方向上的间隔被设定为使得预先假定周期的干扰分量取消通过计算偏差。

8. 发明申请

US20070109393A1 Image forming apparatus and method of adjusting color shift 有权
标题翻译：图像形成装置及调色方法
公开(公告)号：US20070109393A1
公开(公告)日：2007-05-17
申请号：US11592051
申请日：2006-11-01
申请人： Norio Tomita , Yoshikazu Harada , Kengo Matsuyama , Shinichi Yamane
发明人： Norio Tomita , Yoshikazu Harada , Kengo Matsuyama , Shinichi Yamane
IPC分类号： B41J2/47
CPC分类号： G03G15/5033 , G03G15/011 , G03G15/0194 , G03G2215/0119 , G03G2215/0161
摘要： An image forming apparatus includes an image forming unit that forms a color image in which a plurality of color component images are superimposed; and a formation controlling unit that allows the image forming unit to form images for adjustment of formation positions of the respective color component images. The formation controlling unit allows the image forming unit to form, for each color, a plurality of adjustment images having different tilts with respect to a main scanning direction. A shift of a detected position of each adjustment image from a reference position in which each adjustment image should be formed is calculated, a tilt and an intercept of a regression line that uses the reference positions and the calculated shifts as variables are calculated, and a shift in the main scanning direction and a shift in a sub-scanning direction are determined based on the calculated tilt and intercept.
摘要翻译：图像形成装置包括：图像形成单元，其形成多个彩色分量图像重叠的彩色图像; 以及形成控制单元，其允许图像形成单元形成用于调整各个颜色分量图像的形成位置的图像。形成控制单元允许图像形成单元针对每种颜色形成相对于主扫描方向具有不同倾斜的多个调整图像。计算出每个调整图像的检测位置从其中应形成每个调整图像的参考位置的偏移，计算使用参考位置和计算的位移作为变量的回归线的倾斜和截距，并且基于计算出的倾斜和截距来确定主扫描方向上的偏移和副扫描方向的偏移。

9. 发明申请

US20060203070A1 Image forming apparatus 有权
公开(公告)号：US20060203070A1
公开(公告)日：2006-09-14
申请号：US11371975
申请日：2006-03-08
申请人： Kengo Matsuyama , Norio Tomita , Yoshikazu Harada , Kenji Tanaka
发明人： Kengo Matsuyama , Norio Tomita , Yoshikazu Harada , Kenji Tanaka
IPC分类号： B41J2/385 , G03G15/01
CPC分类号： G03G15/0131 , G03G2215/0119 , G03G2215/0161
摘要： An image forming apparatus in which a plurality of color component images of different colors, which include a reference color (e.g. black) serving as a reference and adjustment colors (e.g. cyan, magenta and yellow) to be adjusted, are formed on respective photosensitive drums and then transferred to a transfer belt. Respective positions of the color component images transferred to the transfer belt are detected by a CCD. Timing adjustment can be performed so that the difference between the detected position of each of the color component images and a prescribed position is not more than a predetermined value, based on the reference color image as the reference. In this case, the color component images are formed on the corresponding photosensitive drums with the same timing by utilizing a single polygon mirror.

10. 发明授权

US07777767B2 Image forming apparatus and method of adjusting color shift 有权
标题翻译：图像形成装置及调色方法
公开(公告)号：US07777767B2
公开(公告)日：2010-08-17
申请号：US11592051
申请日：2006-11-01
申请人： Norio Tomita , Yoshikazu Harada , Kengo Matsuyama , Shinichi Yamane
发明人： Norio Tomita , Yoshikazu Harada , Kengo Matsuyama , Shinichi Yamane
IPC分类号： B41J2/385 , B41J2/47 , B41J2/435 , G01D15/14
CPC分类号： G03G15/5033 , G03G15/011 , G03G15/0194 , G03G2215/0119 , G03G2215/0161
摘要： An image forming apparatus includes an image forming unit that forms a color image in which a plurality of color component images are superimposed; and a formation controlling unit that allows the image forming unit to form images for adjustment of formation positions of the respective color component images. The formation controlling unit allows the image forming unit to form, for each color, a plurality of adjustment images having different tilts with respect to a main scanning direction. A shift of a detected position of each adjustment image from a reference position in which each adjustment image should be formed is calculated, a tilt and an intercept of a regression line that uses the reference positions and the calculated shifts as variables are calculated, and a shift in the main scanning direction and a shift in a sub-scanning direction are determined based on the calculated tilt and intercept.
摘要翻译：图像形成装置包括：图像形成单元，其形成多个彩色分量图像重叠的彩色图像; 以及形成控制单元，其允许图像形成单元形成用于调整各个颜色分量图像的形成位置的图像。形成控制单元允许图像形成单元针对每种颜色形成相对于主扫描方向具有不同倾斜的多个调整图像。计算出每个调整图像的检测位置从其中应形成每个调整图像的参考位置的偏移，计算使用参考位置和计算的位移作为变量的回归线的倾斜和截距，并且基于计算出的倾斜和截距来确定主扫描方向上的偏移和副扫描方向的偏移。

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