公开(公告)号：US20110091234A1

公开(公告)日：2011-04-21

申请号：US12980692

申请日：2010-12-29

申请人： Hirotaka Fukuyama ,  Koichiro Sato

发明人： Hirotaka Fukuyama ,  Koichiro Sato

IPC分类号： G03G15/00

CPC分类号： G03G15/161 ,  G03G15/1605

摘要： A technique capable of preventing deterioration of image quality resulting from a band-shaped toner image created on a photosensitive surface in order to prevent so-called carrier attraction is provided. An image forming method involving an abutting and separation step that allows a first image carrier (YMC) and a second image carrier (K) to abut on an intermediate transfer body to form an image and thereafter that allows only the second image carrier to abut on the intermediate transfer body by separating the first image carrier from the intermediate transfer body; and then a collecting step that collects a toner band on the first image carrier in situ to conduct new image formation.

摘要翻译： 提供了一种能够防止由于在感光表面上产生的带状调色剂图像而导致的图像质量劣化以防止所谓的载体吸引的技术。 一种图像形成方法，包括使第一图像载体（YMC）和第二图像载体（K）抵靠在中间转印体上形成图像的抵接分离步骤，然后仅允许第二图像载体抵靠 所述中间转印体通过将所述第一图像载体与所述中间转印体分离; 然后收集步骤，其在第一图像载体上原位收集调色剂带以进行新的图像形成。

公开(公告)号：US07885589B2

公开(公告)日：2011-02-08

申请号：US12488683

申请日：2009-06-22

申请人： Hirotaka Fukuyama ,  Koichiro Sato

发明人： Hirotaka Fukuyama ,  Koichiro Sato

IPC分类号： G03G15/01

CPC分类号： G03G15/161 ,  G03G15/1605

摘要： A technique capable of preventing deterioration of image quality resulting from a band-shaped toner image created on a photosensitive surface in order to prevent so-called carrier attraction is provided. An image forming method involving an abutting and separation step that allows a first image carrier (YMC) and a second image carrier (K) to abut on an intermediate transfer body to form an image and thereafter that allows only the second image carrier to abut on the intermediate transfer body by separating the first image carrier from the intermediate transfer body; and then a collecting step that collects a toner band on the first image carrier in situ to conduct new image formation.

摘要翻译： 提供了一种能够防止由于在感光表面上产生的带状调色剂图像而导致的图像质量劣化以防止所谓的载体吸引的技术。 一种图像形成方法，包括使第一图像载体（YMC）和第二图像载体（K）抵靠在中间转印体上形成图像的抵接分离步骤，然后仅允许第二图像载体抵靠 所述中间转印体通过将所述第一图像载体与所述中间转印体分离; 然后收集步骤，其在第一图像载体上原位收集调色剂带以进行新的图像形成。

公开(公告)号：US07570908B2

公开(公告)日：2009-08-04

申请号：US11743232

申请日：2007-05-02

申请人： Hirotaka Fukuyama ,  Koichiro Sato

发明人： Hirotaka Fukuyama ,  Koichiro Sato

IPC分类号： G03G15/01

CPC分类号： G03G15/161 ,  G03G15/1605

摘要： A technique capable of preventing deterioration of image quality resulting from a band-shaped toner image created on a photosensitive surface in order to prevent so-called carrier attraction is provided.An image forming device in which, on a photosensitive surface of a photoreceptor, a first region electrified by a charger is set to be positioned at an inner side of a second region to which a predetermined potential difference is applied by a developing device in order to develop an electrostatic latent image formed in the first region with two-component developer, the device including: an intermediate transfer body that is arranged to be capable of abutting and being separated from the photosensitive surface, and has an image developed by the two-component developer transferred thereon from the photosensitive surface at a predetermined transfer position; and an abutting and separation controlling unit that separates the intermediate transfer body from the photoreceptor when a region of the second region excluding the first region on the photosensitive surface passes the predetermined transfer position.

摘要翻译： 提供了一种能够防止由于在感光表面上产生的带状调色剂图像而导致的图像质量劣化以防止所谓的载体吸引的技术。 一种图像形成装置，其中在感光体的感光表面上将由充电器带电的第一区域设置为位于通过显影装置施加预定电位差的第二区域的内侧，以便 用双组分显影剂显影在第一区域中形成的静电潜像，该装置包括：中间转印体，其布置成能够抵接并与感光表面分离，并且具有由双组分显影的图像 显影剂在预定的转印位置从感光表面转印到其上; 以及抵接和分离控制单元，当除了感光表面上的第一区域之外的第二区域的区域通过预定的转印位置时，将中间转印体与感光体分离。

公开(公告)号：US5655178A

公开(公告)日：1997-08-05

申请号：US547225

申请日：1995-10-24

申请人： Masaaki Ishikawa ,  Michihisa Iguchi ,  Hiroshi Hashizume ,  Tetsuya Nakamura ,  Kouichirou Satou ,  Yoshiaki Okano ,  Hirotaka Fukuyama ,  Satoshi Katagata ,  Takashi Ishikawa ,  Seiji Arai ,  Chinobu Sakai ,  Takahito Kabai

发明人： Masaaki Ishikawa ,  Michihisa Iguchi ,  Hiroshi Hashizume ,  Tetsuya Nakamura ,  Kouichirou Satou ,  Yoshiaki Okano ,  Hirotaka Fukuyama ,  Satoshi Katagata ,  Takashi Ishikawa ,  Seiji Arai ,  Chinobu Sakai ,  Takahito Kabai

IPC分类号： G03G15/08 ,  G03G21/00

CPC分类号： G03G21/007 ,  G03G15/0815 ,  G03G15/0817 ,  G03G15/0855 ,  G03G15/0865 ,  G03G15/0882 ,  G03G15/0891 ,  G03G15/0896 ,  G03G15/0898 ,  G03G2221/1648

摘要： A developing device used in an electrophotographic apparatus has seal members fixedly disposed between both end portions of a developing roller and those portions of inner walls of a device casing which correspond to both end portions of the developing roller. The seal members are made of a material which can be charged by friction with the developing roller to have the same polarity as charged toner. The toner is blocked by the seal members and presented from entering end portions of the developing roller.

摘要翻译： 在电子照相设备中使用的显影装置具有固定地设置在显影辊的两个端部和对应于显影辊的两个端部的装置壳体的内壁部分之间的密封件。 密封构件由能够与显影辊摩擦而带电的材料制成，以具有与带电调色剂相同的极性。 调色剂被密封件阻挡并且从进入显影辊的端部呈现。

公开(公告)号：US5537192A

公开(公告)日：1996-07-16

申请号：US291748

申请日：1994-08-17

申请人： Michihisa Iguchi ,  Hiroshi Hashizume ,  Seiji Arai ,  Yoshiaki Okano ,  Chinobu Sakai ,  Hirotaka Fukuyama ,  Takahito Kabai ,  Kouichirou Satou ,  Tetsuya Nakamura ,  Satoshi Katagata

发明人： Michihisa Iguchi ,  Hiroshi Hashizume ,  Seiji Arai ,  Yoshiaki Okano ,  Chinobu Sakai ,  Hirotaka Fukuyama ,  Takahito Kabai ,  Kouichirou Satou ,  Tetsuya Nakamura ,  Satoshi Katagata

IPC分类号： G03G15/16 ,  G03G9/087 ,  G03G15/06 ,  G03G15/14

CPC分类号： G03G15/1675 ,  G03G15/1685

摘要： A transfer device of a contact transfer method wherein a transfer power supply applies a predetermined transfer voltage to a transfer roller contacting the rear surface of a printing sheet, so that an electric field for causing the toner to be attracted by the transfer roller is generated. A lumped constant resistor is electrically inserted between the transfer roller and the transfer power supply. The lumped constant resistor has an electric resistance smaller than an equivalent electric resistance obtained when the whole transfer roller is regarded as one electric resistor. When the electric resistance of the printing sheet changes in accordance with a change in ambient environment, the voltage drop across the lumped constant resistor is changed to compensate for the change in electric resistance of the printing sheet.

摘要翻译： 一种接触转印方法的转印装置，其中转印电源向接触印刷纸的后表面的转印辊施加预定的转印电压，从而产生用于使转印辊吸引调色剂的电场。 集中的恒定电阻器电插入转印辊和转印电源之间。 集总常数电阻器的电阻小于将整个转印辊视为一个电阻器时获得的等效电阻。 当印刷纸的电阻根据周围环境的变化而变化时，改变集中的恒定电阻器两端的电压降，以补偿印刷纸的电阻的变化。

公开(公告)号：US20110274452A1

公开(公告)日：2011-11-10

申请号：US13096140

申请日：2011-04-28

申请人： Hirotaka Fukuyama ,  Sunao Takenaka

发明人： Hirotaka Fukuyama ,  Sunao Takenaka

IPC分类号： G03G15/00 ,  G03G21/00

CPC分类号： G03G21/0023 ,  G03G15/065 ,  G03G21/0011

摘要： According to one embodiment, an image forming apparatus includes an image bearing member, a developing device, a cleaning executing section, and a potential adjusting section. An electrostatic latent image is formed on the image bearing member. The developing device stores a two-component developer including a toner and a carrier, includes a toner carrying member, which carries the two-component developer, arranged to be opposed to the image bearing member, and forms a toner image corresponding to the electrostatic latent image on the surface of the image bearing member. The cleaning executing section performs cleaning of the image bearing member. The potential adjusting section adjusts, during the cleaning, development contrast potential, which is a potential difference between the electrostatic latent image potential of the image bearing member and the potential of the developing device, such that the carrier adheres to the image bearing member together with the toner.

摘要翻译： 根据一个实施例，图像形成装置包括图像承载部件，显影装置，清洁执行部分和电位调节部分。 在图像承载部件上形成静电潜像。 显影装置存储包括调色剂和载体的双组分显影剂，包括携带双组分显影剂的调色剂承载构件，其布置成与图像承载构件相对，并形成对应于静电潜像的调色剂图像 图像承载部件的表面上的图像。 清洁执行部执行图像承载部件的清洁。 电位调节部分在清洁期间调节显影对比度电位，其是图像承载部件的静电潜像电位和显影装置的电位之间的潜在差异，使得载体与图像承载部件一起粘附在一起 墨粉。

公开(公告)号：US20090257765A1

公开(公告)日：2009-10-15

申请号：US12488683

申请日：2009-06-22

申请人： Hirotaka FUKUYAMA ,  Koichiro SATO

发明人： Hirotaka FUKUYAMA ,  Koichiro SATO

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/1605

摘要： A technique capable of preventing deterioration of image quality resulting from a band-shaped toner image created on a photosensitive surface in order to prevent so-called carrier attraction is provided. An image forming method involving an abutting and separation step that allows a first image carrier (YMC) and a second image carrier (K) to abut on an intermediate transfer body to form an image and thereafter that allows only the second image carrier to abut on the intermediate transfer body by separating the first image carrier from the intermediate transfer body; and then a collecting step that collects a toner band on the first image carrier in situ to conduct new image formation.

摘要翻译： 提供了一种能够防止由于在感光表面上产生的带状调色剂图像而导致的图像质量劣化以防止所谓的载体吸引的技术。 一种图像形成方法，包括使第一图像载体（YMC）和第二图像载体（K）抵靠在中间转印体上形成图像的抵接分离步骤，然后仅允许第二图像载体抵靠 所述中间转印体通过将所述第一图像载体与所述中间转印体分离; 然后收集步骤，其在第一图像载体上原位收集调色剂带以进行新的图像形成。

公开(公告)号：US07962074B2

公开(公告)日：2011-06-14

申请号：US12372001

申请日：2009-02-17

申请人： Hirotaka Fukuyama ,  Satoshi Itaya

发明人： Hirotaka Fukuyama ,  Satoshi Itaya

IPC分类号： G03G15/09 ,  G03G21/20

CPC分类号： G03G15/0942

摘要： A suction duct that sucks air is provided downstream from a magnet roller that applies a developer to a photoconductor while rotating, in a direction of rotation of the photoconductor, and upstream of a surface potential sensor that measures surface potential of the photoconductor. Moreover, ribs for adjusting an air flow are arranged within the suction duct in such a manner that a width of an air flow passage formed by a rear end in a direction of air flow and a forward end of a nearest rib in the direction of air flow is narrowed from a rib installed upstream in the direction of air flow toward a rib installed downstream. The collection duct collects a floating developer by using a negative pressure.

摘要翻译： 抽吸空气的吸入管设置在从感光体的旋转方向以及测量光电导体的表面电位的表面电位传感器的上游侧的同时向显影剂施加显影剂的磁性辊的下游。 此外，用于调节空气流的肋条以这样一种方式设置在吸入管道内，使得由空气流动方向的后端形成的空气流动通道的宽度和空气方向上最近的肋条的前端 气流从安装在空气流动方向上游的肋条向安装在下游的肋条变窄。 收集管通过使用负压收集漂浮的显影剂。

公开(公告)号：US20110064430A1

公开(公告)日：2011-03-17

申请号：US12872113

申请日：2010-08-31

申请人： Hiromichi Mitamura ,  Hirotaka Fukuyama ,  Sunao Takenaka

发明人： Hiromichi Mitamura ,  Hirotaka Fukuyama ,  Sunao Takenaka

IPC分类号： G03G15/08

CPC分类号： G03G15/556 ,  G03G15/08 ,  G03G2215/00772 ,  G03G2215/00776

摘要： In an image forming method, an execution condition of forcible toner consumption is obtained based on an environmental value at a time of final image formation and a present environmental value, the forcible toner consumption is executed under the execution condition, and image formation is performed after calibration.

摘要翻译： 在图像形成方法中，基于最终图像形成时的环境值和当前环境值获得强制调色剂消耗的执行条件，在执行条件下执行强制调色剂消耗，并且在执行条件之后执行图像形成 校准。

公开(公告)号：US20090232556A1

公开(公告)日：2009-09-17

申请号：US12401687

申请日：2009-03-11

申请人： Hirotaka Fukuyama ,  Satoshi Itaya

发明人： Hirotaka Fukuyama ,  Satoshi Itaya

IPC分类号： G03G15/08

CPC分类号： G03G15/0844 ,  G03G2215/0822 ,  G03G2215/085

摘要： A driving time count is obtained by accumulating a multiplication value which is obtained by multiplying a driving time of a mixer by a coefficient corresponding to an operation of a developing roller. When the driving time count reaches a life threshold for judgment of a life of a developer, it is judged that the developer reaches its end of life.

摘要翻译： 通过累积通过将混合器的驱动时间乘以与显影辊的操作相对应的系数而获得的乘法值来获得驾驶时间计数。 当驾驶时间计数达到用于判断显影剂寿命的寿命阈值时，判断显影剂达到其使用寿命。