公开(公告)号：US05999777A

公开(公告)日：1999-12-07

申请号：US989030

申请日：1997-12-11

申请人： Koji Masuda ,  Yuji Sakemi ,  Takao Ogata ,  Kazuhiro Hasegawa

发明人： Koji Masuda ,  Yuji Sakemi ,  Takao Ogata ,  Kazuhiro Hasegawa

IPC分类号： G03G15/01 ,  G03G15/06

CPC分类号： G03G15/0126 ,  G03G2215/0174 ,  G03G2215/0643

摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic latent image; a first developing device for developing the electrostatic latent image on the image bearing member; a second developing device, faced to the image bearing member and having a movable developer carrying member for carrying toner and carrier, for effecting development after a first developed image provided by the first developing device passes through a position where the developer carrying member is faced to the image bearing member; and a preventing device for forming an alternating electric field between the developer carrying member and the image bearing member, while the second developing device is at reset to prevent the carrier of the second developing device from rubbing the first developed image.

摘要翻译： 图像形成装置包括用于承载静电潜像的图像承载部件; 用于在图像承载部件上显影静电潜像的第一显影装置; 第二显影装置，面对图像承载部件并具有用于承载调色剂和载体的可移动的显影剂承载部件，用于在由第一显影装置提供的第一显影图像通过显影剂承载部件面对的位置之后进行显影 图像承载部件; 以及用于在显影剂承载构件和图像承载构件之间形成交变电场的防止装置，同时第二显影装置被复位以防止第二显影装置的载体摩擦第一显影图像。

公开(公告)号：US6067433A

公开(公告)日：2000-05-23

申请号：US110019

申请日：1998-07-02

申请人： Shigeo Kimura ,  Koji Masuda ,  Takao Ogata ,  Kazuhiro Hasegawa

发明人： Shigeo Kimura ,  Koji Masuda ,  Takao Ogata ,  Kazuhiro Hasegawa

IPC分类号： G03G15/09

CPC分类号： G03G15/09

摘要： A developing apparatus includes a developer bearing member, a first magnetic pole and a second magnetic pole of a same polarity as that of the first magnetic pole, and a regulating member. A regulating portion of the regulating member is provided within a range from a point of the maximum magnetic flux density of the second magnetic pole and an angular point corresponding to a half of the half value width of the second magnetic pole at the downstream side in the rotating direction of the developer bearing member.

摘要翻译： 显影装置包括与第一磁极的极性相同的显影剂承载部件，第一磁极和第二磁极以及调节部件。 调节部件的调节部设置在从第二磁极的最大磁通密度的点和对应于第二磁极的下游侧的第二磁极的半值宽度的一半的角度的范围内 显影剂承载部件的旋转方向。

公开(公告)号：US06421520B2

公开(公告)日：2002-07-16

申请号：US09757620

申请日：2001-01-11

申请人： Koji Masuda ,  Shigeo Kimura ,  Takao Ogata ,  Kazuhiro Hasegawa

发明人： Koji Masuda ,  Shigeo Kimura ,  Takao Ogata ,  Kazuhiro Hasegawa

IPC分类号： G03G1509

CPC分类号： G03G15/0921

摘要： When the structure is arranged such that one of the repulsion poles is used as a developer layer thickness regulation pole, screw pitch-shaped density unevenness occurred at the rear end of a solid black image. To provide a developing apparatus, comprising a developing container containing developer including magnetic carrier and non-magnetic toner, a developer bearing body provided at an opening of the developer container, for rotating while bearing the developer, a magnet member provided within the developer bearing body, the magnet member having a first magnetic pole, and a second magnetic pole adjacent on the downstream side of the developer bearing body of the first magnetic pole in a direction of rotation thereof, having a second magnetic pole having the same polarity as the first magnetic pole, a regulating member provided in the vicinity of the second magnetic pole, for regulating an amount of developer on the developer bearing body, in which between the first magnetic pole and the second magnetic pole, there exists 40° or more an area having 8 mT or less in magnetic flux density in the direction of the normal to the surface of the developer bearing body.

摘要翻译： 当结构被布置为使得排斥极中的一个用作显影剂层厚度调节极时，在黑色黑色图像的后端处发生螺距螺距形密度不均匀。 为了提供一种显影装置，包括显影容器，该显影容器含有包含磁性载体和非磁性调色剂的显影剂，显影剂承载体，设置在显影剂容器的开口处，用于在承载显影剂的同时旋转;设置在显影剂承载体内的磁性构件 具有第一磁极的磁体部件和与第一磁极的旋转方向相邻的第一磁极的显影剂承载体的下游侧的第二磁极，具有与第一磁极相同极性的第二磁极 极，设置在第二磁极附近的调节构件，用于调节在第一磁极和第二磁极之间的显影剂承载体上的显影剂的量存在40°以上的面积为8 在显影剂承载体的表面的法线方向上的磁通密度为mT以下。

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：US5581326A

公开(公告)日：1996-12-03

申请号：US350742

申请日：1994-12-07

申请人： Takao Ogata ,  Yuji Sakemi ,  Masami Izumizaki

发明人： Takao Ogata ,  Yuji Sakemi ,  Masami Izumizaki

IPC分类号： G03G15/08 ,  G03G21/00

CPC分类号： G03G15/0849 ,  G03G15/5041 ,  G03G15/556

摘要： In an image forming apparatus for forming an electrostatic latent image corresponding to an image signal and for developing the latent image, a signal value corresponding to an amount of toner consumed by the development is counted by using the image signal. A toner supplement mechanism is controlled on the basis of the signal value, and an error component of the counted signal value. In addition, toner is supplied based on the counted signal value or a detected toner density in accordance with the number of image formations.

摘要翻译： 在用于形成对应于图像信号的静电潜像并用于显影潜像的图像形成装置中，通过使用图像信号对与显影消耗的调色剂量相对应的信号值进行计数。 基于信号值和计数信号值的误差分量来控制调色剂补充机构。 此外，根据计数的信号值或根据图像形成数量的检测到的调色剂浓度来提供调色剂。

公开(公告)号：US6075954A

公开(公告)日：2000-06-13

申请号：US312830

申请日：1999-05-17

申请人： Takao Ogata ,  Kazuhiro Hasegawa

发明人： Takao Ogata ,  Kazuhiro Hasegawa

IPC分类号： G03G15/08

CPC分类号： G03G15/0855 ,  G03G15/0849 ,  G03G15/0877 ,  G03G15/5041 ,  G03G2215/00037

摘要： A toner density a control device which has first toner density control device and a second toner density control device including a detecting member and, in case the density of the image detected by the detecting member changes by not less than a predetermined value with respect to a standard density, a ratio of the number of density controls by the second density control device with respect to the number of image formations changes.

摘要翻译： 一种调色剂浓度控制装置，其具有第一调色剂浓度控制装置和包括检测部件的第二调色剂浓度控制装置，并且在由所述检测部件检测到的图像的浓度相对于a 标准密度，第二密度控制装置的密度控制数相对于图像形成数量的变化的比率。

公开(公告)号：US08091975B2

公开(公告)日：2012-01-10

申请号：US12131573

申请日：2008-06-02

申请人： Takumi Kaneko ,  Takao Ogata ,  Rie Takekoshi ,  Noboru Kunimine

发明人： Takumi Kaneko ,  Takao Ogata ,  Rie Takekoshi ,  Noboru Kunimine

IPC分类号： B41J29/38

CPC分类号： B41J19/147 ,  B41J2/2107

摘要： One or more scans used to apply a specific ink are varied according to the overlapping conditions of the specific ink and a non-specific ink, and bias in the specific ink nozzle usage frequency and bias in the printing ratio among passes is suppressed. For this purpose, one or more scans used to apply the specific ink are determined on the basis of applying amount information for the specific ink and the non-specific ink. For example, the one or more scans used to apply the specific ink are determined such that the ratio of specific ink applied by the last half of plural scans is greater for a unit pixel whose application ratio of non-specific ink to specific ink is greater than a predetermined ratio than for a unit pixel whose application ratio of non-specific ink to the specific ink is less than the predetermined ratio.

摘要翻译： 根据特定墨水和非特定墨水的重叠条件，用于施加特定墨水的一次或多次扫描被改变，并且抑制了特定墨水喷嘴使用频率中的偏压和通过之间的打印比率的偏差。 为此，基于特定油墨和非特定油墨的施加量信息来确定用于施加特定油墨的一次或多次扫描。 例如，用于施加特定墨水的一次或多次扫描被确定为使得对于非特定墨水与特定墨水的应用比例更大的单位像素，多次扫描的后半部分所施加的特定墨水的比率更大 比预定比例，其比非特定墨水与特定墨水的应用比例小于预定比率的单位像素。

公开(公告)号：US20090073204A1

公开(公告)日：2009-03-19

申请号：US12209883

申请日：2008-09-12

申请人： Rie Takekoshi ,  Takao Ogata ,  Takumi Kaneko ,  Noboru Kunimine

发明人： Rie Takekoshi ,  Takao Ogata ,  Takumi Kaneko ,  Noboru Kunimine

IPC分类号： B41J29/38

CPC分类号： B41J2/2114

摘要： The present invention provides an ink jet printing apparatus, an ink jet printing method, a data generation apparatus, a computer program, and an ink jet printing system by which a timing for ejecting a processing liquid can be changed to improve image performance of a printed image such as abrasion resistance, to provide the printing head with a longer life, and to improve a throughput. The processing liquid is ejected to a predetermined area on a printing medium, for which a formation of an image by ink is completed, in two or more scannings among five scannings of the printing head. When an amount of ejection data for ejecting the processing liquid in the fifth scanning for ejecting only the processing liquid is equal to or lower than a predetermined amount, the fifth scanning is not carried out.

摘要翻译： 本发明提供一种喷墨打印装置，喷墨打印方法，数据生成装置，计算机程序和喷墨打印系统，通过该系统可以改变喷射处理液的时间，以改善打印的图像的图像性能 图像如耐磨性，为打印头提供更长的使用寿命，并提高产量。 在打印头的五次扫描中，将处理液喷射到打印介质上，其中通过油墨形成图像的预定区域在两个或更多个扫描中被完成。 当在仅第一次喷射处理液的第五次扫描中喷射处理液体的喷射数据量等于或低于预定量时，不执行第五次扫描。

公开(公告)号：US07359651B2

公开(公告)日：2008-04-15

申请号：US11330181

申请日：2006-01-12

申请人： Hitoshi Nishitani ,  Hiroyuki Takahashi ,  Takao Ogata

发明人： Hitoshi Nishitani ,  Hiroyuki Takahashi ,  Takao Ogata

IPC分类号： G03G15/08

CPC分类号： G03G15/0121 ,  G03G2215/0119

摘要： The image forming apparatus includes first and second developing apparatuses for developing electrostatic images on first and second image bearing members, a first developer container containing a developer, first supplying device for supplying the developer in the first developer container to the first developing apparatus, a second developer container containing a developer to be supplied to the second developing apparatus, second supplying device for supplying the developer in the second developer container to the second developing apparatus, driving device for driving the first and second supplying device, changeover device which changes over the driving force of the driving device during one image forming operation to first and second states in which the driving force is respectively transmitted to each of the first and second supplying device, and control device for changing the times of the first and second states according to a condition of an image to be formed.

摘要翻译： 图像形成装置包括用于在第一和第二图像承载部件上显影静电图像的第一和第二显影装置，包含显影剂的第一显影剂容器，用于将第一显影剂容器中的显影剂供应到第一显影装置的第一供应装置， 包含供给第二显影装置的显影剂的显影剂容器，用于将第二显影剂容器中的显影剂供应到第二显影装置的第二供给装置，用于驱动第一和第二供给装置的驱动装置，改变驱动的转换装置 驱动装置在一个图像形成操作期间的力分别向第一和第二供给装置中的每一个发送驱动力的第一和第二状态，以及根据条件改变第一和第二状态的时间的控制装置 要形成的图像。

公开(公告)号：US5253018A

公开(公告)日：1993-10-12

申请号：US839366

申请日：1992-02-21

申请人： Tatsuo Takeuchi ,  Koji Amemiya ,  Takao Ogata ,  Nobuatsu Sasanuma

发明人： Tatsuo Takeuchi ,  Koji Amemiya ,  Takao Ogata ,  Nobuatsu Sasanuma

IPC分类号： G03G15/00 ,  G03G15/04 ,  G03G15/043 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G15/5041 ,  G03G2215/00042

摘要： The present invention relates to a toner image density detecting mechanism for an image forming apparatus which includes an image bearing layer supported on a rotatable cylindrical member, a device for forming a plurality of toner reference patterns on the image bearing layer at respective positions which equally divide a circumference of the cylindrical member, a detector for detecting an image density of the toner image of the reference pattern, and a controller controlling an image forming condition in accordance with an output of the detector; wherein an average of the image densities is determined for use in a control operation of the controller. Preferably, the toner used has a reflective or absorbing rate not less than 1.5 times that of the image bearing layer.

摘要翻译： 本发明涉及一种用于图像形成装置的调色剂图像浓度检测机构，其包括支撑在可旋转圆柱形构件上的图像承载层，用于在图像承载层上形成多个调色剂参考图案的装置， 圆柱形构件的圆周，用于检测参考图案的调色剂图像的图像浓度的检测器，以及根据检测器的输出控制图像形成条件的控制器; 其中确定图像密度的平均值用于控制器的控制操作。 优选地，所使用的调色剂具有不小于图像承载层的1.5倍的反射或吸收速率。