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21. 发明授权

US10474086B2 Image forming apparatus capable of adjusting print position of image on recording paper 有权
公开(公告)号：US10474086B2
公开(公告)日：2019-11-12
申请号：US13455289
申请日：2012-04-25
申请人： Norio Tomita , Yasuaki Fukada , Hidetoshi Atsumi , Koji Wakamoto , Atsushi Ogo , Ryosuke Sakai
发明人： Norio Tomita , Yasuaki Fukada , Hidetoshi Atsumi , Koji Wakamoto , Atsushi Ogo , Ryosuke Sakai
IPC分类号： G03G15/00 , G03G15/23
摘要： The image forming apparatus includes: a paper feed unit; a print unit; a registration roller; a sheet leading end sensor provided downstream, in a transport direction of the recording paper, of the registration roller; a time measuring unit for measuring a time from a start point of transportation of the recording paper by the registration roller to a point of detection of the leading end of the recording paper by the sheet leading end sensor; a memory unit for storing a reference image forming time and a reference time; a print control unit; and an arithmetic unit for obtaining a difference between the reference time and the time detected by the time measuring unit. The print control unit adjusts the length of the image forming period in accordance with the adjusted image forming time determined based on the difference obtained by the arithmetic unit and the reference image forming time.

22. 发明授权

US08506037B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08506037B2
公开(公告)日：2013-08-13
申请号：US11946544
申请日：2007-11-28
申请人： Yoshikazu Harada , Norio Tomita , Tetsushi Ito , Showtaro Okamoto , Tetsuya Yamaguchi , Yoshiteru Kikuchi
发明人： Yoshikazu Harada , Norio Tomita , Tetsushi Ito , Showtaro Okamoto , Tetsuya Yamaguchi , Yoshiteru Kikuchi
IPC分类号： B41J29/393
CPC分类号： H04N1/506 , H04N1/0473 , H04N1/29 , H04N2201/04722 , H04N2201/04729 , H04N2201/04731 , H04N2201/04732 , H04N2201/04734 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791
摘要： An image forming apparatus including: an output image forming section for forming an image and a pattern on a supporting medium under a prescribed condition; an output section for transferring the formed image on a recording sheet; a correction section for performing reading of the formed pattern and correcting the condition based on a result of the reading; and a correction control section for controlling operations of the output image forming section, the output section, and the correction section, wherein the correction control section identifies whether or not an area where the image is to be formed and an area where the pattern is to be formed overlap each other, and when the areas are identified that they do not overlap each other, the correction control section controls the output image forming section to simultaneously form the image and the pattern in parallel on the supporting medium.
摘要翻译：一种图像形成装置，包括：输出图像形成部，用于在规定条件下在支撑介质上形成图像和图案; 输出部，用于将形成的图像转印到记录纸上; 校正部分，用于执行所形成的图案的读取并基于读取的结果来校正条件; 以及校正控制部分，用于控制输出图像形成部分，输出部分和校正部分的操作，其中校正控制部分识别要形成图像的区域和图案的区域被形成为彼此重叠，并且当区域被识别为它们彼此不重叠时，校正控制部分控制输出图像形成部分以在支撑介质上同时形成图像和图案。

23. 发明授权

US08090296B2 Coupling mechanism for a process portion of an image forming apparatus 有权
标题翻译：用于图像形成装置的处理部分的耦合机构
公开(公告)号：US08090296B2
公开(公告)日：2012-01-03
申请号：US12254054
申请日：2008-10-20
申请人： Tetsushi Ito , Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita
发明人： Tetsushi Ito , Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita
IPC分类号： G03G15/00
CPC分类号： G03G21/1647 , G03G2221/1657 , G03G2221/1687
摘要： There is provided an image forming apparatus that includes couplings for photoreceptor drums, couplings for waste toner transporting screws, and couplings for developing rollers, that transmit driving force to each of a plurality of driving shafts for driving a process portion that performs image formation by an electrophotographic method, and a plurality of coupling attaching/detaching members for attaching/detaching the plurality of coupling members, so as to drive the process portion. In the image forming apparatus, the plurality of coupling attaching/detaching members are provided so as to be movable independently, and the image forming apparatus includes a coupling attaching/detaching member driving mechanism that operates the coupling attaching/detaching members in association with each other.
摘要翻译：提供了一种图像形成装置，其包括用于感光鼓的联接器，用于废色调剂传送螺钉的联接器和用于显影辊的联接器，其将驱动力传递到多个驱动轴中的每一个驱动轴，以驱动执行图像形成的处理部分电子照相方法，以及用于附接/分离多个联接构件的多个联接器附接/拆卸构件，以便驱动处理部分。在图像形成装置中，多个联接安装/拆卸构件被设置为可独立地移动，并且图像形成装置包括联接装置/拆卸构件驱动机构，该联接装置/拆卸构件驱动机构相互联动地操作联接装置/拆卸构件。

24. 发明申请

US20110280609A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20110280609A1
公开(公告)日：2011-11-17
申请号：US13099466
申请日：2011-05-03
申请人： Shinji NAKAZAWA , Shinichi Takeda , Norio Tomita , Kohichi Yamauchi , Noriaki Taguchi , Yoshiteru Kikuchi
发明人： Shinji NAKAZAWA , Shinichi Takeda , Norio Tomita , Kohichi Yamauchi , Noriaki Taguchi , Yoshiteru Kikuchi
IPC分类号： G03G21/20
CPC分类号： G03G21/206 , G03G2221/1603 , G03G2221/1645
摘要： In one embodiment, an image forming apparatus (100) is provided with a resin frame (300) made of resin and an image forming unit (200). The image forming apparatus further includes a first duct (410) that allows air to flow on one side of the image forming unit (200), a second duct (420) that allows air to flow on the other side, and a third duct (430) that allows air to flow between the first duct and the second duct. The resin frame (300) has a first duct portion (311) that constitutes at least a portion of the first duct (410), and a second duct portion (321) that constitutes at least a portion of the second duct (420).
摘要翻译：在一个实施例中，图像形成装置（100）设置有由树脂制成的树脂框架（300）和图像形成单元（200）。图像形成装置还包括允许空气在图像形成单元（200）的一侧流动的第一管道（410），允许空气在另一侧流动的第二管道（420）和第三管道 430），其允许空气在第一管道和第二管道之间流动。树脂框架（300）具有构成第一管道（410）的至少一部分的第一管道部分（311）和构成第二管道（420）的至少一部分的第二管道部分（321）。

25. 发明授权

US07929891B2 Alignment error correcting unit for image forming apparatus 有权
标题翻译：用于图像形成装置的对准误差校正单元
公开(公告)号：US07929891B2
公开(公告)日：2011-04-19
申请号：US12416692
申请日：2009-04-01
申请人： Norio Tomita , Yoshiteru Kikuchi , Kenichi Isomi , Yoshikazu Harada , Tetsushi Ito
发明人： Norio Tomita , Yoshiteru Kikuchi , Kenichi Isomi , Yoshikazu Harada , Tetsushi Ito
IPC分类号： G03G15/01
CPC分类号： G03G15/161 , G03G15/1605 , G03G2215/0132 , G03G2215/0161
摘要： An image forming apparatus include: a plurality of photosensitive drums; a latent image forming unit for forming an electrostatic latent image on each photosensitive drum; a developing unit for developing each electrostatic latent image; a transferring unit for superimposing and transferring the developed images onto a moving record medium; a measurement unit for measuring positions of the transferred images on the record medium; and a control unit for controlling the photosensitive drums, the latent image forming unit, the developing unit, and the transferring unit. The control unit includes: a calculating unit for calculating a value related to alignment errors in the positions measured by said measurement unit in accordance with a sine-curve fitting method; and a correcting unit for correcting the alignment errors by the calculated value.
摘要翻译：图像形成装置包括：多个感光鼓; 用于在每个感光鼓上形成静电潜像的潜像形成单元; 用于显影每个静电潜像的显影单元; 传送单元，用于将显影图像叠加并传送到移动记录介质上; 测量单元，用于测量记录介质上转印图像的位置; 以及用于控制感光鼓，潜像形成单元，显影单元和转印单元的控制单元。控制单元包括：计算单元，用于根据正弦曲线拟合方法计算由所述测量单元测量的位置中的对准误差相关的值; 以及校正单元，用于通过计算值校正对准误差。

26. 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。

27. 发明申请

US20090123181A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090123181A1
公开(公告)日：2009-05-14
申请号：US12254054
申请日：2008-10-20
申请人： Tetsushi ITO , Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita
发明人： Tetsushi ITO , Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita
IPC分类号： G03G15/00
CPC分类号： G03G21/1647 , G03G2221/1657 , G03G2221/1687
摘要： There is provided an image forming apparatus that includes couplings for photoreceptor drums, couplings for waste toner transporting screws, and couplings for developing rollers, that transmit driving force to each of a plurality of driving shafts for driving a process portion that performs image formation by an electrophotographic method, and a plurality of coupling attaching/detaching members for attaching/detaching the plurality of coupling members, so as to drive the process portion. In the image forming apparatus, the plurality of coupling attaching/detaching members are provided so as to be movable independently, and the image forming apparatus includes a coupling attaching/detaching member driving mechanism that operates the coupling attaching/detaching members in association with each other.
摘要翻译：提供了一种图像形成装置，其包括用于感光鼓的联接器，用于废色调剂传送螺钉的联接器和用于显影辊的联接器，其将驱动力传递到多个驱动轴中的每一个驱动轴，以驱动执行图像形成的处理部分电子照相方法，以及用于附接/分离多个联接构件的多个联接器附接/拆卸构件，以便驱动处理部分。在图像形成装置中，多个联接安装/拆卸构件被设置为可独立地移动，并且图像形成装置包括联接装置/拆卸构件驱动机构，该联接装置/拆卸构件驱动机构相互联动地操作联接装置/拆卸构件。

28. 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。

29. 发明授权

US07239833B2 Image forming device and color misregistration correction method for image forming device 有权
标题翻译：图像形成装置和图像形成装置的颜色对准校正方法
公开(公告)号：US07239833B2
公开(公告)日：2007-07-03
申请号：US10924766
申请日：2004-08-25
申请人： Norio Tomita , Masanobu Yamamoto , Kyosuke Taka , Yoshikazu Harada
发明人： Norio Tomita , Masanobu Yamamoto , Kyosuke Taka , Yoshikazu Harada
IPC分类号： G03G15/01
CPC分类号： G03G15/0131 , G03G15/0194 , G03G15/5058 , G03G2215/00059 , G03G2215/0119 , G03G2215/0132 , G03G2215/0141 , G03G2215/0158 , G03G2215/0164
摘要： An image forming device and a color misregistration correction method allow for stable formation of excellent images with little color misregistration. A reference patch image is formed on a reference photosensitive drum 3, and transferred to a transfer belt 7. A correction patch image is formed on a correction-target photosensitive drum 3, and transferred onto the reference patch image by superimposition. A registration detecting sensor 21 detects a density average value of the reference patch image and the correction patch image. Based on the density average value, a correction value for controlling the correction-target photosensitive drum 3 is calculated, and rotational phase control is performed in accordance with the correction value.
摘要翻译：图像形成装置和颜色对准校正方法允许稳定地形成具有很少颜色重合不良的优异图像。参考补片图像形成在参考感光鼓3上，并被转印到转印带7上。校正补丁图像形成在校正目标感光鼓3上，并通过叠加转移到参考补片图像上。登记检测传感器21检测参考斑块图像和校正斑块图像的浓度平均值。基于密度平均值，计算用于控制校正目标感光鼓3的校正值，并根据校正值进行旋转相位控制。

30. 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。

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