公开(公告)号：US06459862B1

公开(公告)日：2002-10-01

申请号：US09688110

申请日：2000-10-16

申请人： Yuji Sakemi ,  Shigeo Kimura ,  Fumitake Hirobe

发明人： Yuji Sakemi ,  Shigeo Kimura ,  Fumitake Hirobe

IPC分类号： G03G1500

CPC分类号： G03G15/065

摘要： A developing apparatus has a developer carrying body provided to face an image bearing body. The developer carrying body carries and conveys a developer having toner and carrier to a developing region. A bias applying device applies a developing bias to the developer carrying body, wherein the bias applying device applies to the developer carrying body the developing bias having periodically a voltage portion having alternately a first voltage to generate an electric field to direct toner from the developer carrying body to the image bearing body and a second voltage to generate an electric field to direct the toner from the image bearing body to the developer carrying body and a pause portion to pause applying the alternate voltage, wherein T1 and T2 have a relationship of T1>T2, where T1 is as an applying time period of the first voltage and T2 is an applying time period of the second voltage.

摘要翻译： 显影装置具有设置成面对图像承载体的显影剂承载体。 显影剂携带体携带并将具有调色剂和载体的显影剂输送到显影区域。 偏置施加装置将显影偏压施加到显影剂承载体上，其中偏压施加装置将显影偏压周期性地施加到显影剂承载体上，所述显影偏压周期性地具有交替地具有第一电压的电压部分，以产生电场，以将调色剂从显影剂携带 并且第二电压产生电场以将调色剂从图像承载体引导到显影剂携带体和暂停部分以暂停施加交替电压，其中T1和T2的关系为T1> T2，其中T1作为第一电压的施加时间段，T2是第二电压的施加时间段。

公开(公告)号：US06856773B2

公开(公告)日：2005-02-15

申请号：US10720234

申请日：2003-11-25

申请人： Fumitake Hirobe ,  Shigeo Kimura

发明人： Fumitake Hirobe ,  Shigeo Kimura

IPC分类号： G03G15/00

CPC分类号： G03G15/5041 ,  G03G15/5037 ,  G03G2215/00042 ,  G03G2215/00054

摘要： The present invention concerns controlling a potential used to form an electrostatic image for image formation. According to the invention, an electrostatic latent image is formed on an image bearing member using, for example, a potential stored in a memory. The potential of the latent image is detected, and if the potential is not within a specified range, the potential is controlled (i.e., changed) to form another latent image with the changed potential. The latent image is then developed and the density of the developed image detected. In one embodiment, the amount of developer to be replenished is then controlled based upon the detected density and a target potential value, where the target potential value is determined and set based on the detected density and the potential used in the potential controlling step. In a related embodiment, when a result of the potential obtained after termination of a normal image formation process is out of a designated range, potential control is performed after termination of a next normal image formation process.

摘要翻译： 本发明涉及控制用于形成用于图像形成的静电图像的电位。 根据本发明，使用例如存储在存储器中的电位，在图像承载部件上形成静电潜像。 检测潜像的电位，如果电位不在规定范围内，则电位被控制（即改变），形成具有变化的电位的另一潜像。 然后显影潜像，并检测显影图像的浓度。 在一个实施例中，然后基于检测到的密度和目标电位值来控制要补充的显影剂的量，其中基于检测到的浓度和在电势控制步骤中使用的电位来确定和设定目标电势值。 在相关实施例中，当在正常图像形成处理结束之后获得的电位的结果超出指定范围时，在下一个正常图像形成处理结束之后执行电位控制。

公开(公告)号：US06442355B1

公开(公告)日：2002-08-27

申请号：US09511245

申请日：2000-02-23

申请人： Kazuhiro Hasegawa ,  Shigeo Kimura ,  Koji Masuda ,  Akihiko Sato ,  Takao Ogata ,  Fumitake Hirobe

发明人： Kazuhiro Hasegawa ,  Shigeo Kimura ,  Koji Masuda ,  Akihiko Sato ,  Takao Ogata ,  Fumitake Hirobe

IPC分类号： G03G1508

摘要： A developer density controlling apparatus includes image density detecting device for detecting a target density on the basis of a detected image and, if a difference between a toner density detected by a developer density detecting device and the target density is equal to or greater than a predetermined value, the image density detecting device does not correct the target density.

公开(公告)号：US06665502B2

公开(公告)日：2003-12-16

申请号：US09873292

申请日：2001-06-05

申请人： Fumitake Hirobe ,  Shigeo Kimura

发明人： Fumitake Hirobe ,  Shigeo Kimura

IPC分类号： G03G1500

CPC分类号： G03G15/5041 ,  G03G15/5037 ,  G03G2215/00042 ,  G03G2215/00054

摘要： The present invention concerns controlling a potential used to form an electrostatic image for image formation. According to the invention, an electrostatic latent image is formed on an image bearing member using, for example, a potential stored in a memory. The potential of the latent image is detected, and if the potential is not within a specified range, the potential is controlled (i.e., changed) to form another latent image with the changed potential. The latent image is then developed and the density of the developed image detected. In one embodiment, the amount of developer to be replenished is then controlled based upon the detected density and a target potential value, where the target potential value is determined and set based on the detected density and the potential used in the potential controlling step. In a related embodiment, when a result of the potential obtained after termination of a normal image formation process is out of a designated range, potential control is performed after termination of a next normal image formation process.

摘要翻译： 本发明涉及控制用于形成用于图像形成的静电图像的电位。 根据本发明，使用例如存储在存储器中的电位，在图像承载部件上形成静电潜像。 检测潜像的电位，如果电位不在规定范围内，则电位被控制（即改变），形成具有变化的电位的另一潜像。 然后显影潜像，并检测显影图像的浓度。 在一个实施例中，然后基于检测到的密度和目标电位值来控制要补充的显影剂的量，其中基于检测到的浓度和在电势控制步骤中使用的电位来确定和设定目标电势值。 在相关实施例中，当在正常图像形成处理结束之后获得的电位的结果超出指定范围时，在下一个正常图像形成处理结束之后执行电位控制。

公开(公告)号：US08385754B2

公开(公告)日：2013-02-26

申请号：US12859387

申请日：2010-08-19

申请人： Fumitake Hirobe ,  Hideaki Suzuki ,  Yoshiro Tsukada ,  Masahiro Ootsuka

发明人： Fumitake Hirobe ,  Hideaki Suzuki ,  Yoshiro Tsukada ,  Masahiro Ootsuka

IPC分类号： G03G15/08

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G2215/0609

摘要： An image forming apparatus includes an image bearing member for bearing a latent image; a developing device, including a developer carrying member for carrying and feeding a developer including toner and a carrier to a developing position in which the developer opposes the image bearing member, for developing the latent image formed on the image bearing member; a discharging portion for permitting discharge of an excessive developer present in the developing device by supplying the developer into the developing device; a feeding member for feeding the developer in the developing device; a controller for controlling a forced discharging operation for discharging the excessive developer from the discharging portion by changing a driving condition of at least one of the developer carrying member and the feeding member; and a detecting device for detecting information correlating to flowability of the developer in the developing device. The controller is capable of controlling the forced discharging operation on the basis of a detection result of the detecting device.

摘要翻译： 图像形成装置包括用于承载潜像的图像承载部件; 显影装置，包括用于将显影剂（包括调色剂和载体）携带并供给到显影位置的显影剂承载构件，其中显影剂与图像承载部件相对，用于使形成在图像承载部件上的潜像显影; 排出部分，用于通过将显影剂供应到显影装置中来排出存在于显影装置中的过量显影剂; 用于将显影剂供给到显影装置中的进给构件; 控制器，用于通过改变至少一个显影剂承载构件和进给构件的驱动状态来控制从排出部排出过量显影剂的强制排出操作; 以及用于检测与显影装置中的显影剂的流动性相关的信息的检测装置。 控制器能够根据检测装置的检测结果控制强制放电操作。

公开(公告)号：US07277649B2

公开(公告)日：2007-10-02

申请号：US11314091

申请日：2005-12-22

申请人： Fumitake Hirobe ,  Tadayoshi Nishihama ,  Akihiro Noguchi

发明人： Fumitake Hirobe ,  Tadayoshi Nishihama ,  Akihiro Noguchi

IPC分类号： G03G15/08

CPC分类号： G03G15/0121 ,  G03G15/0803 ,  G03G2215/0177

摘要： A developing apparatus for developing an electrostatic image with light chromatic toner and dark chromatic toner which have the same hue, the developing device includes a light color developing device for accommodating a developer containing the light chromatic toner and carrier to develop the electrostatic image; a dark color developing device for accommodating a developer containing the dark chromatic toner and carrier to develop the electrostatic image; light color developer supply container accommodating a developer containing the light chromatic toner and the carrier to be supplied to the light color developing device; and dark color developer supply container accommodating a developer containing the dark chromatic toner and the carrier to be supplied to the dark color developing device, wherein the developer in the light chromatic toner supply container and the developer in the dark chromatic toner supply container have carrier weight ratios which are different from each other.

摘要翻译： 一种显影装置，用于使用具有相同色调的浅色调色剂和深色调色剂显影静电图像，所述显影装置包括用于容纳含有所述浅色调色剂和载体的显影剂以显影所述静电图像的浅色显影装置; 深色显影装置，用于容纳含有深色调色剂和载体的显影剂以显影静电图像; 浅色显影剂供应容器，容纳含有所述浅色调色剂和所述载体的显影剂供应到所述浅色显影装置; 和深色显影剂供应容器，其容纳包含暗色调色剂和载体的显影剂供给暗色显影装置，其中，浅色调色剂供应容器中的显影剂和暗色调色剂供应容器中的显影剂具有载体重量 相互不同的比例。

公开(公告)号：US20070053720A1

公开(公告)日：2007-03-08

申请号：US11439982

申请日：2006-05-25

申请人： Tadayoshi Nishihama ,  Fumitake Hirobe ,  Akihiro Noguchi ,  Akinori Tanaka

发明人： Tadayoshi Nishihama ,  Fumitake Hirobe ,  Akihiro Noguchi ,  Akinori Tanaka

IPC分类号： G03G15/01 ,  G03G15/08

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G15/0886 ,  G03G2215/0177 ,  G03G2215/0802

摘要： In a developing apparatus provided with a developer container containing a developer, a rotary member holding the developer container and rotatively moving it relative to a developing position, an opening portion provided in the developer container and through which the developer is supplied or discharged, a valve swingable to open and close the opening portion, and a restricting wall restricting the movement of the valve in an opening direction by contacting with the valve when the valve is in an opened position, an irregularity portion is provided on at least one of the contact surface of the valve with the restricting wall and the contact surface of the restricting wall with the valve.

摘要翻译： 在设置有容纳显影剂的显影剂容器的显影装置中，保持显影剂容器并相对于显影位置使其旋转移动的旋转构件，设置在显影剂容器中并且显影剂通过其供应或排出的开口部分， 可旋转地打开和关闭开口部分;以及限制壁，其在阀处于打开位置时通过与阀接触来限制阀在打开方向上的运动，在接触表面中的至少一个上设置有不规则部分 的阀门与限制壁和限制壁的接触表面与阀。

公开(公告)号：US07054584B2

公开(公告)日：2006-05-30

申请号：US11166111

申请日：2005-06-27

申请人： Fumitake Hirobe

发明人： Fumitake Hirobe

IPC分类号： G03G15/09

CPC分类号： G03G15/0921 ,  G03G9/107 ,  G03G2215/0648

摘要： A developing apparatus for developing an electrostatic image formed on an image bearing member includes a first developer bearing member for bearing magnetic developer to transport it to a first developing portion, a first magnetic field generator stationarily provided in the first developer bearing member, a second developer bearing member for bearing magnetic developer to transport it to a second developing portion, and a second magnetic field generator stationarily provided in the second developer bearing member. The first developer bearing member and the second developer bearing member supply the magnetic developer to the electrostatic image on the image bearing member in the mentioned order. In addition, a peak value of a normal line direction component of a magnetic force generated in the vicinity of the second developing portion is greater than a peak value of a normal line direction component of a magnetic force generated in the vicinity of the first developing portion.

摘要翻译： 用于显影形成在图像承载部件上的静电图像的显影装置包括用于承载磁性显影剂以将其传送到第一显影部分的第一显影剂承载部件，固定地设置在第一显影剂承载部件中的第一磁场发生器， 支承构件用于承载磁性显影剂以将其运送到第二显影部分，以及固定地设置在第二显影剂承载构件中的第二磁场发生器。 第一显影剂承载构件和第二显影剂承载构件以所述顺序将磁性显影剂供应到图像承载构件上的静电图像。 另外，在第二显影部附近产生的磁力的法线方向分量的峰值大于在第一显影部附近产生的磁力的法线方向分量的峰值 。

公开(公告)号：US20050213999A1

公开(公告)日：2005-09-29

申请号：US11076925

申请日：2005-03-11

申请人： Fumitake Hirobe

发明人： Fumitake Hirobe

IPC分类号： G03G15/00 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G15/5041 ,  G03G2215/00037 ,  G03G2215/0891

摘要： image which develops the image density control electrostatic image formed on the image bearing member by the developing apparatus, wherein, in case the detection result by an environment detection portion is changed by a predetermined value or the replenishment developer is renewed, the process advances to a mode of performing the image density control, while performing the replenishing operation by developer replenishing means not depending on the result detected by the image density detection portion but based on the detection result of the developer density detecting means.

摘要翻译： 通过显影装置形成在图像承载部件上形成的图像浓度控制静电图像的图像，其中，如果由环境检测部分的检测结果改变预定值或补充显影剂更新，则处理进行到 执行图像浓度控制的模式，同时根据显影剂浓度检测装置的检测结果执行不依赖于图像浓度检测部分检测到的结果的显影剂补充装置的补充操作。

公开(公告)号：US20110200347A1

公开(公告)日：2011-08-18

申请号：US13025560

申请日：2011-02-11

申请人： Fumitake Hirobe

发明人： Fumitake Hirobe

IPC分类号： G03G15/00

CPC分类号： G03G15/5041 ,  G03G15/0173 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/00067

摘要： An image forming apparatus includes an image forming unit configured to form a toner image on an image bearing member, a first detection unit configured to detect a height of the toner image formed according to a predetermined image forming condition by the image forming unit, a determination unit configured to determine an image forming condition of the image forming unit according to a detection result of the first detection unit, a second detection unit configured to detect a density of the toner image formed according to a predetermined image forming condition by the image forming unit, and a correction unit configured to correct the image forming condition of the image forming unit determined by the determination unit based on the density of the toner image detected by the second detection unit.

摘要翻译： 图像形成装置包括：图像形成单元，被配置为在图像承载部件上形成调色剂图像;第一检测单元，被配置为检测由图像形成单元根据预定图像形成条件形成的调色剂图像的高度;确定 被配置为根据第一检测单元的检测结果确定图像形成单元的图像形成条件的单元，被配置为根据图像形成单元检测根据预定图像形成条件形成的调色剂图像的浓度的第二检测单元 以及校正单元，被配置为基于由第二检测单元检测到的调色剂图像的浓度来校正由确定单元确定的图像形成单元的图像形成条件。