公开(公告)号：US10061226B2

公开(公告)日：2018-08-28

申请号：US15477576

申请日：2017-04-03

Applicant: Kazuaki Kamihara ,  Yuuichiroh Uematsu ,  Tetsuya Muto ,  Tomohide Takenaka ,  Keita Sone ,  Keita Gotoh ,  Masahiko Shakuto ,  Takamasa Ozeki ,  Mutsuki Morinaga ,  Hitoshi Yamamoto ,  Keiko Kajimura

Inventor： Kazuaki Kamihara ,  Yuuichiroh Uematsu ,  Tetsuya Muto ,  Tomohide Takenaka ,  Keita Sone ,  Keita Gotoh ,  Masahiko Shakuto ,  Takamasa Ozeki ,  Mutsuki Morinaga ,  Hitoshi Yamamoto ,  Keiko Kajimura

IPC: G03G15/00 ,  G03G15/08

CPC classification number: G03G15/0855 ,  G03G15/0131 ,  G03G15/0189 ,  G03G15/0806 ,  G03G15/0856 ,  G03G15/0865 ,  G03G15/5058 ,  G03G15/556

Abstract: An image forming apparatus includes an image bearer, a toner image forming device, a plurality of image density detectors, and a controller. The plurality of image density detectors are disposed at predetermined intervals opposite the image bearer in a width direction of the image bearer. The controller causes the toner image forming device to form toner image patterns having an identical density at the plurality of positions on the image bearer and the plurality of image density detectors detects a density of the toner image patterns. Based on the detected density of the toner image patterns, the controller identifies multiple cyclic fluctuations of the density of the toner image patterns and adjusts an image forming condition based on the multiple cyclic fluctuations of the density of the toner image patterns to decrease an amplitude caused by the multiple cyclic fluctuations of the density of the toner image patterns.

公开(公告)号：US09316950B2

公开(公告)日：2016-04-19

申请号：US13856541

申请日：2013-04-04

Applicant: Tomoko Takahashi ,  Yoshiyuki Fukuda ,  Yoshio Hattori ,  Sho Akiyama ,  Takamasa Ozeki ,  Yoshinori Nakagawa ,  Mikio Ishibashi ,  Ryuji Yoshida ,  Taichi Urayama

Inventor： Tomoko Takahashi ,  Yoshiyuki Fukuda ,  Yoshio Hattori ,  Sho Akiyama ,  Takamasa Ozeki ,  Yoshinori Nakagawa ,  Mikio Ishibashi ,  Ryuji Yoshida ,  Taichi Urayama

IPC: G03G15/09

CPC classification number: G03G15/0849 ,  G03G15/0921 ,  G03G21/18

Abstract: A development device is operable in multiple different speed modes and includes a developer bearer to carry developer, a developer regulator to adjust an amount of developer carried on the developer bearer, and multiple developer conveyance members disposed facing the developer bearer to transport developer in a longitudinal direction to circulate developer inside the development device. The multiple developer conveyance members including a first developer conveyance member to supply developer to the developer bearer and a second developer conveyance member to transport developer collected from the developer bearer. The development device executes developer amount balance adjustment in which a driving velocity of at least the multiple developer conveyance members is increased from a driving velocity in a lower-speed mode for a predetermined period after image development in the lower speed mode is completed and before image development in a higher speed mode is started.

Abstract translation: 显影装置可以多种不同的速度模式操作，并且包括用于承载显影剂的显影剂载体，显影剂调节器，用于调节显影剂载体承载的显影剂的量，以及面向显影剂载体设置的多个显影剂传送构件，以纵向传送显影剂 使显影剂在显影装置内循环的方向。 多个显影剂传送构件包括用于向显影剂载体提供显影剂的第一显影剂传送构件和用于传送从显影剂载体收集的显影剂的第二显影剂传送构件。 显影装置执行显影剂量平衡调整，其中至少多个显影剂输送构件的驱动速度在低速模式下的图像显影完成之后的预定时间段内从低速模式的驱动速度增加，并且在图像之前 开始以较高速度模式开发。

公开(公告)号：US09250593B2

公开(公告)日：2016-02-02

申请号：US14275038

申请日：2014-05-12

Applicant: Ryusuke Mase ,  Taichi Urayama ,  Tomoko Takahashi ,  Shotaro Hoshi ,  Ryuji Yoshida ,  Hiroyuki Sugiyama ,  Masahiko Shakuto ,  Hideki Zemba ,  Takamasa Ozeki ,  Yoshinori Nakagawa

Inventor： Ryusuke Mase ,  Taichi Urayama ,  Tomoko Takahashi ,  Shotaro Hoshi ,  Ryuji Yoshida ,  Hiroyuki Sugiyama ,  Masahiko Shakuto ,  Hideki Zemba ,  Takamasa Ozeki ,  Yoshinori Nakagawa

IPC: G03G15/00 ,  G03G15/08

CPC classification number: G03G15/5041 ,  G03G15/0848 ,  G03G15/5058 ,  G03G15/55 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/00063

Abstract: An image forming apparatus includes a latent image carrier, a charging device, a latent image forming device, a developing device, a transfer device, a toner amount detector, and a control circuit to execute an imaging condition determination process. The control circuit obtains a linear approximation formula of a developing potential and an amount of toner according to an exposure potential of the patch pattern and a detected amount of toner to calculate a developing gamma and a developing start voltage according to a gradient of the linear approximation formula, determines target charging potential, exposure potential and developing bias according to the developing gamma and the developing start voltage, determines an amount of a background potential to be corrected according to a difference between the developing start voltage and a target developing start voltage obtained according to environmental information, and corrects the target charging potential.

Abstract translation: 图像形成装置包括潜像载体，充电装置，潜像形成装置，显影装置，转印装置，调色剂量检测器和控制电路，以执行成像条件确定处理。 控制电路根据该贴片图案的曝光电位和检测量的调色剂获得显影电位和调色剂量的线性近似公式，以根据线性近似的梯度来计算显影伽马和显影起始电压 根据显影伽马和显影开始电压确定目标充电电位，曝光电位和显影偏压，根据显影开始电压和目标显影开始电压之间的差确定待校正的背景电位的量，根据 对环境信息，并纠正目标充电潜力。

公开(公告)号：US09244374B2

公开(公告)日：2016-01-26

申请号：US14531413

申请日：2014-11-03

Applicant: Hiroyuki Sugiyama ,  Ryoh Tanoue ,  Masahiko Shakuto ,  Tomoko Takahashi ,  Yoshinori Nakagawa ,  Ryuji Yoshida ,  Taichi Urayama ,  Shotaro Hoshi ,  Ryusuke Mase ,  Takamasa Ozeki

Inventor： Hiroyuki Sugiyama ,  Ryoh Tanoue ,  Masahiko Shakuto ,  Tomoko Takahashi ,  Yoshinori Nakagawa ,  Ryuji Yoshida ,  Taichi Urayama ,  Shotaro Hoshi ,  Ryusuke Mase ,  Takamasa Ozeki

IPC: G03G15/00 ,  G03G15/02

CPC classification number: G03G15/0266

Abstract: The image forming apparatus includes a process unit, a latent image writer, a power source, and a controller. The process unit is detachably attachable relative to the image forming apparatus and includes, as a single integrated unit, a latent image bearing member to bear a latent image on a surface thereof, a charging device to charge the surface of the latent image bearing member, and a development device to develop the latent image with toner. The controller causes the power source to output a charging bias at a predetermined target level supplied to the charging device. The process unit includes a first storage device to store correction information for calculating the predetermined target level of the charging bias in accordance with a combination of the latent image bearing member and the charging device. The controller corrects the predetermined target level based on the correction information in the first storage device.

Abstract translation: 图像形成装置包括处理单元，潜像写入器，电源和控制器。 处理单元相对于图像形成装置可拆卸地安装，并且包括作为单个集成单元的潜像承载构件以在其表面上承载潜像，对潜像承载构件的表面充电的充电装置， 以及用调色剂显影潜像的显影装置。 控制器使得电源以提供给充电装置的预定目标电平输出充电偏压。 处理单元包括第一存储装置，用于根据潜像承载部件和充电装置的组合存储用于计算充电偏压的预定目标电平的校正信息。 控制器基于第一存储装置中的校正信息来校正预定目标电平。

公开(公告)号：US20150139710A1

公开(公告)日：2015-05-21

申请号：US14540745

申请日：2014-11-13

Applicant: Kunio HASEGAWA ,  Hiroshi NAKAI ,  Kenji KOMITO ,  Tadashi KASAI ,  Takamasa OZEKI ,  Jun HITOSUGI ,  Makoto YASUDA ,  Emiko SHIRAISHI ,  Wakana ITOH ,  Takatsugu KOMORI ,  Mutsuki MORINAGA ,  Hitoshi YAMAMOTO

Inventor： Kunio HASEGAWA ,  Hiroshi NAKAI ,  Kenji KOMITO ,  Tadashi KASAI ,  Takamasa OZEKI ,  Jun HITOSUGI ,  Makoto YASUDA ,  Emiko SHIRAISHI ,  Wakana ITOH ,  Takatsugu KOMORI ,  Mutsuki MORINAGA ,  Hitoshi YAMAMOTO

IPC: G03G21/00 ,  B05C1/08

CPC classification number: G03G21/0094

Abstract: A protective layer forming device, including: a powdery image bearer protecting agent formed of a granulated product containing a fatty acid metal salt and an inorganic lubricant; and a roller-shaped protecting agent supplying member configured to supply the powdery image bearer protecting agent to a surface of an image bearer.

Abstract translation: 一种保护层形成装置，包括：由含有脂肪酸金属盐和无机润滑剂的造粒产物形成的粉状图像载体保护剂; 以及辊状保护剂供给构件，其构造成将粉状图像载体保护剂供给到图像载体的表面。

公开(公告)号：US08326189B2

公开(公告)日：2012-12-04

申请号：US12860203

申请日：2010-08-20

Applicant: Yoshiyuki Fukuda ,  Katsumi Masuda ,  Nobuyuki Taguchi ,  Yuuki Satoh ,  Yasufumi Takahashi ,  Keiichi Yoshida ,  Yoshio Hattori ,  Akira Azami ,  Takamasa Ozeki ,  Toshiki Hayashi

Inventor： Yoshiyuki Fukuda ,  Katsumi Masuda ,  Nobuyuki Taguchi ,  Yuuki Satoh ,  Yasufumi Takahashi ,  Keiichi Yoshida ,  Yoshio Hattori ,  Akira Azami ,  Takamasa Ozeki ,  Toshiki Hayashi

IPC: G03G15/06 ,  G03G15/09

CPC classification number: G03G15/0921 ,  G03G15/0806 ,  G03G2215/0822

Abstract: There is provided a separation member for separating a first conveying path formed by a first conveying member from a second conveying path formed by a second conveying member. There is also provided an opposed member facing a magnetic pole H4 at an upstream side of two magnetic poles H4 and H6 that forms a developer-releasing magnetic pole H5.

Abstract translation: 设置有用于将由第一输送构件形成的第一输送路径与由第二输送构件形成的第二输送路径分离的分离构件。 另外，在形成显影剂释放用磁极H5的两个磁极H4，H6的上游侧也设有面向磁极H4的相对构件。

公开(公告)号：US20110058858A1

公开(公告)日：2011-03-10

申请号：US12860203

申请日：2010-08-20

Applicant: Yoshiyuki Fukuda ,  Katsumi Masuda ,  Nobuyuki Taguchi ,  Yuuki Satoh ,  Yasufumi Takahashi ,  Keiichi Yoshida ,  Yoshio Hattori ,  Akira Azami ,  Takamasa Ozeki ,  Toshiki Hayashi

Inventor： Yoshiyuki Fukuda ,  Katsumi Masuda ,  Nobuyuki Taguchi ,  Yuuki Satoh ,  Yasufumi Takahashi ,  Keiichi Yoshida ,  Yoshio Hattori ,  Akira Azami ,  Takamasa Ozeki ,  Toshiki Hayashi

IPC: G03G15/09

CPC classification number: G03G15/0921 ,  G03G15/0806 ,  G03G2215/0822

Abstract: There is provided a separation member for separating a first conveying path formed by a first conveying member from a second conveying path formed by a second conveying member. There is also provided an opposed member facing a magnetic pole H4 at an upstream side of two magnetic poles H4 and H6 that forms a developer-releasing magnetic pole H5.

Abstract translation: 设置有用于将由第一输送构件形成的第一输送路径与由第二输送构件形成的第二输送路径分离的分离构件。 另外，在形成显影剂释放用磁极H5的两个磁极H4，H6的上游侧也设有面向磁极H4的相对构件。

公开(公告)号：US20090245882A1

公开(公告)日：2009-10-01

申请号：US12412892

申请日：2009-03-27

Applicant: Takamasa OZEKI ,  Katsumi Masuda ,  Yoahio Hattori ,  Hiroyuki Uenishi ,  Yuji Suzuki ,  Kyohta Koetsuka ,  Masayuki Ohsawa ,  Yoshlyuki Takano ,  Takeroh Kurenuma

Inventor： Takamasa OZEKI ,  Katsumi Masuda ,  Yoahio Hattori ,  Hiroyuki Uenishi ,  Yuji Suzuki ,  Kyohta Koetsuka ,  Masayuki Ohsawa ,  Yoshlyuki Takano ,  Takeroh Kurenuma

IPC: G03G15/08

CPC classification number: G03G15/0812 ,  G03G15/0921 ,  G03G2215/0609

Abstract: A developing unit includable in a process cartridge and in an image forming apparatus includes a developer bearing member including a magnetic field generator and a nonmagnetic hollow member, a developer container, an agitation/conveyance member, a developer regulating member to regulate the thickness of a layer of the two-component developer. The magnetic field generator has first and second magnetic poles to generate respective magnetic forces for removing the developer from the developer bearing member after the developer passes the development region. The second magnetic pole generates a magnetic force to attract the developer to form a magnetic brush on the developer bearing member. The developer regulating member includes a magnetic member outwardly disposed on an exterior perimeter surface of the developer bearing member upstream from the developer regulating member, and one planar surface of the magnetic member faces the second magnetic pole across an effective development region.

Abstract translation: 可包括在处理盒和图像形成装置中的显影单元包括显影剂承载部件，该显影剂承载部件包括磁场发生器和非磁性中空部件，显影剂容器，搅拌/传送部件，显影剂调节部件， 双组分显影剂层。 磁场发生器具有第一和第二磁极，以在显影剂通过显影区域之后产生用于从显影剂承载部件移除显影剂的相应磁力。 第二磁极产生磁力以吸引显影剂以在显影剂承载部件上形成磁刷。 显影剂调节构件包括在显影剂调节构件的上游向外设置在显影剂承载构件的外周表面上的磁性构件，磁性构件的一个平坦表面横跨有效显影区域面对第二磁极。

公开(公告)号：US20170315471A1

公开(公告)日：2017-11-02

申请号：US15477576

申请日：2017-04-03

Applicant: Kazuaki KAMIHARA ,  Yuuichiroh UEMATSU ,  Tetsuya MUTO ,  Tomohide TAKENAKA ,  Keita SONE ,  Keita GOTOH ,  Masahiko SHAKUTO ,  Takamasa OZEKI ,  Mutsuki MORINAGA ,  Hitoshi YAMAMOTO ,  Keiko KAJIMURA

Inventor： Kazuaki KAMIHARA ,  Yuuichiroh UEMATSU ,  Tetsuya MUTO ,  Tomohide TAKENAKA ,  Keita SONE ,  Keita GOTOH ,  Masahiko SHAKUTO ,  Takamasa OZEKI ,  Mutsuki MORINAGA ,  Hitoshi YAMAMOTO ,  Keiko KAJIMURA

IPC: G03G15/08

CPC classification number: G03G15/0855 ,  G03G15/0131 ,  G03G15/0189 ,  G03G15/0806 ,  G03G15/0856 ,  G03G15/0865 ,  G03G15/5058 ,  G03G15/556

Abstract: An image forming apparatus includes an image bearer, a toner image forming device, a plurality of image density detectors, and a controller. The plurality of image density detectors are disposed at predetermined intervals opposite the image bearer in a width direction of the image bearer. The controller causes the toner image forming device to form toner image patterns having an identical density at the plurality of positions on the image bearer and the plurality of image density detectors detects a density of the toner image patterns. Based on the detected density of the toner image patterns, the controller identifies multiple cyclic fluctuations of the density of the toner image patterns and adjusts an image forming condition based on the multiple cyclic fluctuations of the density of the toner image patterns to decrease an amplitude caused by the multiple cyclic fluctuations of the density of the toner image patterns.

公开(公告)号：US09684259B2

公开(公告)日：2017-06-20

申请号：US14971251

申请日：2015-12-16

Applicant: Takatsugu Komori ,  Emiko Shiraishi ,  Tadashi Kasai ,  Takamasa Ozeki ,  Jun Hitosugi ,  Kunio Hasegawa ,  Makoto Yasuda ,  Wakana Itoh ,  Mutsuki Morinaga ,  Hitoshi Yamamoto

Inventor： Takatsugu Komori ,  Emiko Shiraishi ,  Tadashi Kasai ,  Takamasa Ozeki ,  Jun Hitosugi ,  Kunio Hasegawa ,  Makoto Yasuda ,  Wakana Itoh ,  Mutsuki Morinaga ,  Hitoshi Yamamoto

IPC: G03G15/00 ,  G03G15/01

CPC classification number: G03G15/0189 ,  G03G15/5029 ,  G03G15/5066 ,  G03G15/55

Abstract: An image forming apparatus includes an image formation processor to perform image formation to a recording medium with a primary color toner and a secondary color toner that is different from the primary color toner, a database to store multiple setting values, each of which corresponding a combination of a mode type depending on the primary color toner and the secondary color toner and a media type of the recording medium and being applied to a process of the image formation performed by the image forming processor, a database retriever to retrieve an optimum setting value from the multiple setting values stored in the database according to a specified combination of the mode type and the media type, and an operation setting arranger to perform the image formation based on the optimum setting value acquired from the database retriever.