公开(公告)号：US09857745B2

公开(公告)日：2018-01-02

申请号：US15274366

申请日：2016-09-23

申请人： Natsumi Matsue ,  Akira Yoshida ,  Akio Kosuge ,  Yoichi Sakurai ,  Yuuichiroh Uematsu ,  Keiko Matsumoto

发明人： Natsumi Matsue ,  Akira Yoshida ,  Akio Kosuge ,  Yoichi Sakurai ,  Yuuichiroh Uematsu ,  Keiko Matsumoto

IPC分类号： G03G15/00

CPC分类号： G03G15/5041 ,  G03G15/5058

摘要： An image forming apparatus includes a rotatable image bearer, a toner image forming device, an image reader, and a control unit. The toner image forming device forms a test toner image on the image bearer. The image reader reads the test toner image and a predetermined reference member. The control unit calculates an amount of toner contained in the test toner image based on image data from the test toner image. Based on image data from the reference member, the control unit selects a position of a pixel to be used for calculation of the amount of toner contained in the test toner image from pixels included in the image data from the reference member, to calculate the amount of toner contained in the test toner image from data of a pixel located at the position thus selected among pixels included in the image data from the test toner image.

公开(公告)号：US09651910B2

公开(公告)日：2017-05-16

申请号：US15190685

申请日：2016-06-23

申请人： Akio Kosuge ,  Natsumi Matsue ,  Keiko Matsumoto ,  Akira Yoshida ,  Yoichi Sakurai ,  Yuuichiroh Uematsu ,  Kohta Fujimori ,  Kayoko Tanaka

发明人： Akio Kosuge ,  Natsumi Matsue ,  Keiko Matsumoto ,  Akira Yoshida ,  Yoichi Sakurai ,  Yuuichiroh Uematsu ,  Kohta Fujimori ,  Kayoko Tanaka

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/556 ,  G03G15/01 ,  G03G15/5058

摘要： An image forming apparatus includes an image bearer, an image forming device to form a toner image on the image bearer, a transfer device to transfer the toner image to a recording medium, a line sensor as an image density sensor to detect image density of the toner image, and a controller operatively connected to the image density sensor. The image density sensor is disposed so as to be shorter in a rotational direction of the image bearer than in a width direction of the image bearer perpendicular to the rotational direction of the image bearer. The controller forms a shading pattern image including a plurality of patches on the image bearer, and detects image density of the plurality of patches, so as to control image density. The shading pattern image is shorter in the rotational direction of the image bearer than in the width direction of the image bearer.

公开(公告)号：US20170248889A1

公开(公告)日：2017-08-31

申请号：US15436598

申请日：2017-02-17

申请人： Yuuichiroh Uematsu ,  Natsumi Matsue ,  Akira Yoshida ,  Akio Kosuge ,  Keiko Matsumoto

发明人： Yuuichiroh Uematsu ,  Natsumi Matsue ,  Akira Yoshida ,  Akio Kosuge ,  Keiko Matsumoto

IPC分类号： G03G15/00

CPC分类号： G03G15/5062 ,  G03G15/5058 ,  G03G2215/00042 ,  G03G2215/00063

摘要： An image density detector for detecting image density of an image borne by an image bearer includes a reference board, a light emitter, a light receiver, an image density calculator, and an image density detecting condition corrector. The reference board has a spectral reflectance distribution closer to a spectral reflectance distribution of the image forming material than a spectral reflectance distribution of white. The light emitter emits light to the reference board and the image borne by the image bearer. The light receiver receives the light reflected from the image and the reference board. The image density calculator calculates the image density of the image based on an output of the light receiver receiving the light reflected from the image. The image density detecting condition corrector corrects an image density detecting condition based on an output of the light receiver receiving the light reflected from the reference board.

公开(公告)号：US09366989B2

公开(公告)日：2016-06-14

申请号：US14589955

申请日：2015-01-05

申请人： Daisuke Ito ,  Ken Yoshida ,  Keiko Matsumoto ,  Yoichi Sakurai ,  Daisuke Takahashi

发明人： Daisuke Ito ,  Ken Yoshida ,  Keiko Matsumoto ,  Yoichi Sakurai ,  Daisuke Takahashi

IPC分类号： G03G15/01 ,  G03G15/08

CPC分类号： G03G15/0822 ,  G03G15/0121 ,  G03G15/0126 ,  G03G15/0142 ,  G03G15/0189 ,  G03G2215/0607

摘要： An image forming apparatus includes at least one image bearer; multiple developing devices to develop the latent images with developers including toner and carrier into a toner image; multiple developer supply devices to supply the developers to the multiple developing devices, respectively; and a fixing device to fix the toner image on a sheet of recording media. When one of the multiple developing devices positioned at a shortest distance from an outline of the fixing device is referred to as a first developing device, and one of the multiple developer supply devices that supplies developer to the first developing device is referred to as a first developer supply device, the first developer supply device is greater in percentage by weight of carrier in developer supplied to the first developing device than rest of the multiple developer supply devices.

摘要翻译： 图像形成装置包括至少一个图像载体; 多个显影装置将具有调色剂和载体的显影剂的潜像显影成调色剂图像; 多个显影剂供应装置分别向多个显影装置供应开发者; 以及用于将调色剂图像固定在记录介质片上的定影装置。 当定位在与定影装置的轮廓最短距离的多个显影装置中的一个被称为第一显影装置时，将显影剂供应到第一显影装置的多个显影剂供应装置中的一个被称为第一显影装置 显影剂供应装置，第一显影剂供应装置比供应给第一显影装置的显影剂中的载体的重量百分比大于其余多个显影剂供应装置。

公开(公告)号：US20140086605A1

公开(公告)日：2014-03-27

申请号：US14036194

申请日：2013-09-25

申请人： Ken YOSHIDA ,  Keiko Matsumoto ,  Tomohide Takenaka ,  Daisuke Ito ,  Daisuke Takahashi ,  Masahiro Katoh ,  Yoichi Sakurai

发明人： Ken YOSHIDA ,  Keiko Matsumoto ,  Tomohide Takenaka ,  Daisuke Ito ,  Daisuke Takahashi ,  Masahiro Katoh ,  Yoichi Sakurai

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/16 ,  G03G15/234 ,  G03G15/5025

摘要： An image forming apparatus includes an image carrier, a transfer unit, and a control unit. The image carrier has a surface to bear a toner image thereon. The transfer unit has a transfer member to transfer the toner image onto a recording sheet conveyed in a conveyance direction for trailing-end borderless image formation and duplex image formation. The transfer unit is configured to form the toner image on the recording sheet without forming a margin at a trailing end of the recording sheet in the conveyance sheet in the trailing-end borderless image formation. The transfer unit is configured to form the toner image on front and back faces of the recording sheet in the duplex image formation. When a width of the toner image formed in a borderless image area of the recording sheet in the trailing-end borderless image formation is smaller in a direction perpendicular to the conveyance direction than a threshold value, the control unit permits the duplex image formation. When the width is the threshold value or greater, the control unit prohibits the duplex image formation.

摘要翻译： 图像形成装置包括图像载体，转印单元和控制单元。 图像载体具有在其上承载调色剂图像的表面。 转印单元具有转印构件，以将调色剂图像转印到在输送方向上输送的记录纸上，用于后端无边界图像形成和双面图像形成。 转印单元构造成在记录纸上形成调色剂图像，而在后端无边框图像形成中在输送片材中的记录纸的尾端处形成余量。 转印单元被配置为在双面图像形成中在记录纸的正面和背面上形成调色剂图像。 当在后端无边框图像形成中的记录纸的无边界图像区域中形成的调色剂图像的宽度在垂直于输送方向的方向上比阈值小时，控制单元允许双面图像形成。 当宽度为阈值或更大时，控制单元禁止双面图像形成。

公开(公告)号：US09316954B2

公开(公告)日：2016-04-19

申请号：US14036194

申请日：2013-09-25

申请人： Ken Yoshida ,  Keiko Matsumoto ,  Tomohide Takenaka ,  Daisuke Ito ,  Daisuke Takahashi ,  Masahiro Katoh ,  Yoichi Sakurai

发明人： Ken Yoshida ,  Keiko Matsumoto ,  Tomohide Takenaka ,  Daisuke Ito ,  Daisuke Takahashi ,  Masahiro Katoh ,  Yoichi Sakurai

IPC分类号： G03G15/23 ,  G03G15/16 ,  G03G15/00

CPC分类号： G03G15/16 ,  G03G15/234 ,  G03G15/5025

摘要： An image forming apparatus includes an image carrier, a transfer unit, and a control unit. The image carrier has a surface to bear a toner image thereon. The transfer unit has a transfer member to transfer the toner image onto a recording sheet conveyed in a conveyance direction for trailing-end borderless image formation and duplex image formation. The transfer unit is configured to form the toner image on the recording sheet without forming a margin at a trailing end of the recording sheet in the conveyance sheet in the trailing-end borderless image formation. The transfer unit is configured to form the toner image on front and back faces of the recording sheet in the duplex image formation. When a width of the toner image formed in a borderless image area of the recording sheet in the trailing-end borderless image formation is smaller in a direction perpendicular to the conveyance direction than a threshold value, the control unit permits the duplex image formation. When the width is the threshold value or greater, the control unit prohibits the duplex image formation.

摘要翻译： 图像形成装置包括图像载体，转印单元和控制单元。 图像载体具有在其上承载调色剂图像的表面。 转印单元具有转印构件，以将调色剂图像转印到在输送方向上输送的记录纸上，用于后端无边界图像形成和双面图像形成。 转印单元构造成在记录纸上形成调色剂图像，而在后端无边框图像形成中在输送片中的记录纸的尾端处形成余量。 转印单元被配置为在双面图像形成中在记录纸的正面和背面上形成调色剂图像。 当在后端无边框图像形成中的记录纸的无边界图像区域中形成的调色剂图像的宽度在垂直于输送方向的方向上比阈值小时，控制单元允许双面图像形成。 当宽度为阈值或更大时，控制单元禁止双面图像形成。

公开(公告)号：US20150192879A1

公开(公告)日：2015-07-09

申请号：US14589955

申请日：2015-01-05

申请人： Daisuke Ito ,  Ken Yoshida ,  Keiko Matsumoto ,  Yoichi Sakurai ,  Daisuke Takahashi

发明人： Daisuke Ito ,  Ken Yoshida ,  Keiko Matsumoto ,  Yoichi Sakurai ,  Daisuke Takahashi

IPC分类号： G03G15/08 ,  G03G15/01

CPC分类号： G03G15/0822 ,  G03G15/0121 ,  G03G15/0126 ,  G03G15/0142 ,  G03G15/0189 ,  G03G2215/0607

摘要： An image forming apparatus includes at least one image bearer; multiple developing devices to develop the latent images with developers including toner and carrier into a toner image; multiple developer supply devices to supply the developers to the multiple developing devices, respectively; and a fixing device to fix the toner image on a sheet of recording media. When one of the multiple developing devices positioned at a shortest distance from an outline of the fixing device is referred to as a first developing device, and one of the multiple developer supply devices that supplies developer to the first developing device is referred to as a first developer supply device, the first developer supply device is greater in percentage by weight of carrier in developer supplied to the first developing device than rest of the multiple developer supply devices.

摘要翻译： 图像形成装置包括至少一个图像载体; 多个显影装置将具有调色剂和载体的显影剂的潜像显影成调色剂图像; 多个显影剂供应装置分别向多个显影装置供应开发者; 以及用于将调色剂图像固定在记录介质片上的定影装置。 当定位在与定影装置的轮廓最短距离的多个显影装置中的一个被称为第一显影装置时，将显影剂供应到第一显影装置的多个显影剂供应装置中的一个被称为第一显影装置 显影剂供应装置，第一显影剂供应装置比供应给第一显影装置的显影剂中的载体的重量百分比大于其余多个显影剂供应装置。

公开(公告)号：US08014704B2

公开(公告)日：2011-09-06

申请号：US12114164

申请日：2008-05-02

申请人： Keiko Matsumoto ,  Emi Kita ,  Mugijirou Uno ,  Satoru Miyamoto ,  Junichi Terai

发明人： Keiko Matsumoto ,  Emi Kita ,  Mugijirou Uno ,  Satoru Miyamoto ,  Junichi Terai

IPC分类号： G03G15/08

CPC分类号： G03G15/0879 ,  G03G15/0855 ,  G03G15/0865 ,  G03G15/0874 ,  G03G2215/0607 ,  G03G2215/0682

摘要： A developing agent storage device for storing a refill developing agent includes toner particles, carrier particles, an inner layer of the developing agent storage device. The toner particles and carrier particles compose the refill developing agent. The inner layer is provided as a wall contacting the refill developing agent. An electrostatic chargeability level of the toner particles, the carrier particles, and the inner layer is set in an order of toner, inner layer, and carrier from any one of a negative charge side and a positive charge side.

摘要翻译： 用于储存再充填显影剂的显影剂储存装置包括调色剂颗粒，载体颗粒，显影剂储存装置的内层。 调色剂颗粒和载体颗粒组成再填充显影剂。 内层设置为与再填充显影剂接触的壁。 调色剂颗粒，载体颗粒和内层的静电充电水平以负电荷侧和正电荷侧中的任一个的调色剂，内层和载体的顺序设定。

公开(公告)号：US20090103935A1

公开(公告)日：2009-04-23

申请号：US12253538

申请日：2008-10-17

申请人： Mugijiro Uno ,  Keiko Matsumoto ,  Takuzi Yoneda ,  Yuki Oshikawa

发明人： Mugijiro Uno ,  Keiko Matsumoto ,  Takuzi Yoneda ,  Yuki Oshikawa

IPC分类号： G03G15/14 ,  G03G15/08

CPC分类号： G03G15/0131 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0856 ,  G03G15/0893 ,  G03G2215/0193

摘要： An image forming apparatus includes an latent image carrier configured to carry a latent image thereon, a developing unit disposed facing the latent image carrier to develop the latent image with developer, a developer container containing the developer and attachable to the image forming apparatus, a developer detector configured to detect the presence of the developer in the developing unit, and a developer supply controller. The developer supply controller prohibits supply of the developer from the developer container to the developing unit when the developer detector detects that the developer is present in the developing unit.

摘要翻译： 图像形成装置包括构造成在其上承载潜像的潜像载体，与潜像载体相对设置的用显影剂显影潜像的显影单元，容纳显影剂的显影剂容器，可附着到图像形成装置，显影剂 检测器被配置为检测显影单元中的显影剂的存在以及显影剂供应控制器。 当显影剂检测器检测到显影剂存在于显影单元中时，显影剂供应控制器禁止将显影剂从显影剂容器供应到显影单元。

公开(公告)号：US20080175628A1

公开(公告)日：2008-07-24

申请号：US11971580

申请日：2008-01-09

申请人： Emi Kita ,  Junichi Terai ,  Yuki Oshikawa ,  Hiroyuki Okaji ,  Mugijirou Uno ,  Keiko Matsumoto

发明人： Emi Kita ,  Junichi Terai ,  Yuki Oshikawa ,  Hiroyuki Okaji ,  Mugijirou Uno ,  Keiko Matsumoto

IPC分类号： G03G15/08

CPC分类号： G03G15/0879 ,  G03G15/0855 ,  G03G15/0865 ,  G03G15/0875 ,  G03G2215/068

摘要： A powder filling method, which fills at least two kinds of powders with different specific gravities into a powder container, and by which a region having only a powder with the highest specific gravity out of the at least two kinds of powders is prevented from being generated in the filled powder container. A toner, which is a first powder that does not include a carrier having the highest specific gravity, is mixed with air in a toner storage portion. The air is introduced into the toner particles to increase the bulk of the toner, and then a toner filling device fills a toner bottle serving as the powder container with the toner having the air. Upon completion of such filling, a carrier filling device starts filling the carrier, which is a second powder, into the toner bottle. Filling of the carrier is completed before the air is released from the toner particles contained in the toner bottle and thereby the bulk of the toner is reduced and then stabilized.

摘要翻译： 一种粉末填充方法，其将至少两种具有不同比重的粉末填充到粉末容器中，并且防止仅产生至少两种粉末中具有最高比重的粉末的区域被产生 在填充的粉末容器中。 作为不具有最高比重的载体的第一粉末的调色剂与调色剂储存部分中的空气混合。 将空气引入调色剂颗粒中以增加调色剂的体积，然后调色剂填充装置填充用作粉末容器的调色剂瓶，其中调色剂具有空气。 在完成这样的填充时，载体填充装置开始将作为第二粉末的载体填充到调色剂瓶中。 在空气从包含在调色剂瓶中的调色剂颗粒释放出来之前完成载体的填充，从而减少主体的调色剂然后稳定。