公开(公告)号：US5740494A

公开(公告)日：1998-04-14

申请号：US699922

申请日：1996-08-20

申请人： Hisashi Shoji ,  Osamu Endo ,  Kei Yasutomi ,  Masako Yoshii ,  Hidetoshi Yano ,  Yasushi Nakazato ,  Takayuki Kimura

发明人： Hisashi Shoji ,  Osamu Endo ,  Kei Yasutomi ,  Masako Yoshii ,  Hidetoshi Yano ,  Yasushi Nakazato ,  Takayuki Kimura

IPC分类号： G03G21/00

CPC分类号： G03G21/0064 ,  G03G21/0005

摘要： An image forming apparatus includes a cleaning member for collecting toner left on an image carrier after image transfer, and then redepositing it on the carrier, so that a developing unit can collect the redeposited toner to reuse it. Even when the frictional charging ability of the cleaning member falls due to aging or varying environment, the charge of the toner left on the image carrier is regulated to preselected polarity before the toner reaches the cleaning member, thereby enhancing a toner collecting efficiency and a toner redepositing efficiency. The charge of the toner redeposited on the image carrier and moved away from the cleaning member is regulated to preselected polarity while being increased, thereby reducing a load to act on the developing unit. The toner is redeposited on the image carrier efficiently without regard to the polarity of the toner collected by the cleaning member. The developing unit is allowed to collect all the toner redeposited on the image carrier, thereby freeing the background of an image from contamination. When the cleaning member collects the toner from the image carrier, the toner is prevented from being transferred from the cleaning member to the image carrier, thereby obviating defective cleaning. An image forming speed is increased by reducing the interval between consecutive image forming areas. A pressure is caused to act uniformly between the cleaning member and the image carrier in the axial direction of the roller, further enhancing the toner collecting efficiency and toner redepositing efficiency while obviating background contamination.

摘要翻译： 图像形成装置包括用于在图像转印之后收集在图像载体上的调色剂的清洁部件，然后将其重新沉积在载体上，使得显影单元可以收集再沉积的调色剂以重新使用。 即使当清洁部件的摩擦带电能力由于老化或环境变化而降低时，在调色剂到达清洁部件之前，留在图像载体上的调色剂的电荷被调节为预选的极性，从而提高调色剂收集效率和调色剂 重新沉积效率。 再次沉积在图像载体上并移动离开清洁部件的调色剂的电荷在增加时被调节到预选的极性，从而减少作用于显影单元的负载。 调色剂有效地再沉积在图像载体上，而不考虑由清洁部件收集的调色剂的极性。 允许显影单元收集重新沉积在图像载体上的所有调色剂，从而释放图像的背景污染。 当清洁构件从图像载体收集调色剂时，防止调色剂从清洁构件转移到图像载体，从而避免了有缺陷的清洁。 通过减小连续的图像形成区域之间的间隔来增加图像形成速度。 导致压力在辊的轴向上在清洁构件和图像载体之间均匀地作用，进一步提高调色剂收集效率和调色剂再沉积效率，同时避免背景污染。

公开(公告)号：US5606408A

公开(公告)日：1997-02-25

申请号：US536205

申请日：1995-09-29

申请人： Hidetoshi Yano ,  Hisashi Shoji ,  Tsukuru Kai ,  Osamu Endo ,  Yoshiko Ishii ,  Nobuto Yokokawa ,  Masako Suzuki ,  Yukiko Iwasaki ,  Koji Sakamoto ,  Yasushi Nakazato ,  Takayuki Kimura

发明人： Hidetoshi Yano ,  Hisashi Shoji ,  Tsukuru Kai ,  Osamu Endo ,  Yoshiko Ishii ,  Nobuto Yokokawa ,  Masako Suzuki ,  Yukiko Iwasaki ,  Koji Sakamoto ,  Yasushi Nakazato ,  Takayuki Kimura

IPC分类号： G03G21/00

CPC分类号： G03G21/0064 ,  G03G2221/0005

摘要： In an image forming apparatus, during the course of recording, a cleaning roller is rotated together with an image carrier. The roller frictionally charges toner left on the image carrier after image transfer to the same polarity. A cleaning member electrostatically collects the charged toner. At the same time, a voltage is applied to the cleaning member by a voltage applying device in order to cause it to attract the charged toner, thereby cleaning the image carrier. Hence, even when the toner remaining on image carrier is charged partly to the positive polarity and partly to the negative polarity, the toner can be entirely transferred to the cleaning member by a simple construction.

摘要翻译： 在图像形成装置中，在记录过程中，清洁辊与图像载体一起旋转。 图像转印后，滚轮会摩擦将图像载体上剩下的墨粉充电至相同的极性。 清洁部件静电收集带电的调色剂。 同时，通过电压施加装置将电压施加到清洁部件，以使其吸引带电的调色剂，从而清洁图像载体。 因此，即使剩余在图像载体上的调色剂被部分地充电到正极性并且部分地被充电到负极性，也可以通过简单的结构将调色剂完全转印到清洁部件。

公开(公告)号：US06778805B2

公开(公告)日：2004-08-17

申请号：US10459562

申请日：2003-06-12

申请人： Tsukuru Kai ,  Nobutaka Takeuchi ,  Hisashi Shoji ,  Kei Yasutomi ,  Takeyoshi Sekine ,  Osamu Ariizumi

发明人： Tsukuru Kai ,  Nobutaka Takeuchi ,  Hisashi Shoji ,  Kei Yasutomi ,  Takeyoshi Sekine ,  Osamu Ariizumi

IPC分类号： G03G1509

CPC分类号： G03G21/00 ,  G03G15/0921

摘要： An image forming apparatus of the present invention includes a lubricator for applying a lubricant to an image carrier or a process unit around the image carrier to thereby reduce friction. The apparatus of the present invention insures a uniform halftone image, prevents the trailing edge of an image from being lost, and faithfully reproduces even a horizontal line.

摘要翻译： 本发明的图像形成装置包括：润滑剂，用于向图像载体或图像载体周围的处理单元施加润滑剂，从而减少摩擦。 本发明的装置确保了均匀的半色调图像，防止图像的后缘丢失，并忠实地再现水平线。

公开(公告)号：US06978109B2

公开(公告)日：2005-12-20

申请号：US10793849

申请日：2004-03-08

申请人： Hisashi Shoji ,  Tsukuru Kai ,  Kei Yasutomi ,  Nekka Matsuura ,  Nobutaka Takeuchi ,  Hirokatsu Suzuki

发明人： Hisashi Shoji ,  Tsukuru Kai ,  Kei Yasutomi ,  Nekka Matsuura ,  Nobutaka Takeuchi ,  Hirokatsu Suzuki

IPC分类号： G03G9/10 ,  G03G13/09 ,  G03G15/09

CPC分类号： G03G9/10 ,  G03G13/09 ,  G03G2215/0119 ,  G03G2215/0177

摘要： An electrophotographic image forming apparatus of the present invention frees images from various defects including the thinning of horizontal lines, the omission of the trailing edge of an image, background contamination, granularity particular to a halftone image, carrier scattering, and image noise. Further, the apparatus of the present invention solves problems ascribable to patches used to sense image density. Moreover, the apparatus of the present invention faithfully reproduces tonality and has a high developing ability.

摘要翻译： 本发明的电子照相图像形成装置可以从各种缺陷中释放图像，包括水平线的变薄，图像的后缘的遗漏，背景污染，半色调图像特有的粒度，载体散射和图像噪声。 此外，本发明的装置解决了归因于用于检测图像密度的贴片的问题。 此外，本发明的装置忠实地再现音调并具有高显影能力。

公开(公告)号：US06597885B2

公开(公告)日：2003-07-22

申请号：US09873246

申请日：2001-06-05

申请人： Tsukuru Kai ,  Nobutaka Takeuchi ,  Hisashi Shoji ,  Kei Yasutomi ,  Takeyoshi Sekine ,  Osamu Ariizumi

发明人： Tsukuru Kai ,  Nobutaka Takeuchi ,  Hisashi Shoji ,  Kei Yasutomi ,  Takeyoshi Sekine ,  Osamu Ariizumi

IPC分类号： G03G1509

CPC分类号： G03G21/00 ,  G03G15/0921

摘要： An image forming apparatus including a developing device and an image carrier facing the developing device. The developing device includes a main magnetic pole for causing a developer to magnetically deposit on an outer periphery of a developer carrier in a form of a magnet brush. The image carrier has a coefficient of friction of 0.5 or below, and a flux density in a normal direction has an attenuation ratio of 40% or above.

摘要翻译： 一种图像形成装置，包括显影装置和面向显影装置的图像载体。 显影装置包括用于使显影剂以磁刷的形式磁性沉积在显影剂载体的外周上的主磁极。 图像载体的摩擦系数为0.5以下，并且正常方向的磁通密度具有40％以上的衰减比。

公开(公告)号：US06819901B1

公开(公告)日：2004-11-16

申请号：US09708659

申请日：2000-11-09

申请人： Kei Yasutomi ,  Tsukuru Kai ,  Hisashi Shoji ,  Nobutaka Takeuchi

发明人： Kei Yasutomi ,  Tsukuru Kai ,  Hisashi Shoji ,  Nobutaka Takeuchi

IPC分类号： G03G1509

CPC分类号： G03G15/0921 ,  G03G2215/0609 ,  G03G2215/0634

摘要： An image forming method including providing a developer including a toner and a magnetic carrier, a developer carrier configured to convey the developer deposited thereon, and magnetic field generating means fixed within the developer carrier, and forming a magnetic field which forms a magnet brush between the image carrier and the developer carrier such that the magnet brush rises, contacts the image carrier and collapses within a range in which the magnetic field is more intense than an electric field capable of separating the toner and the magnetic carrier from each other by using the magnetic field generating means. The magnetic brush rubs the image carrier to thereby develop a latent image formed on the image carrier.

摘要翻译： 一种图像形成方法，包括提供包括调色剂和磁性载体的显影剂，构造成输送沉积在其上的显影剂的显影剂载体和固定在显影剂载体内的磁场产生装置，并形成磁场，该磁场在第 图像载体和显影剂载体，使得磁刷上升，与图像载体接触并且在磁场比能够通过使用磁性分离调色剂和磁性载体的电场更强的范围内塌陷 场产生装置。 磁刷摩擦图像载体，从而显影形成在图像载体上的潜像。

公开(公告)号：US06757509B2

公开(公告)日：2004-06-29

申请号：US09846244

申请日：2001-05-02

申请人： Hisashi Shoji ,  Tsukuru Kai ,  Kei Yasutomi ,  Nekka Matsuura ,  Nobutaka Takeuchi ,  Hirokatsu Suzuki

发明人： Hisashi Shoji ,  Tsukuru Kai ,  Kei Yasutomi ,  Nekka Matsuura ,  Nobutaka Takeuchi ,  Hirokatsu Suzuki

IPC分类号： G03G1309

CPC分类号： G03G9/10 ,  G03G13/09 ,  G03G2215/0119 ,  G03G2215/0177

摘要： An electrophotographic image forming apparatus of the present invention frees images from various defects including the thinning of horizontal lines, the omission of the trailing edge an image, background contamination, granularity particular to a halftone image, carrier scattering, and image noise. Further, the apparatus of the present invention solves problems ascribable to patches used to sense image density. Moreover, the apparatus of the present invention faithfully reproduces tonality and has a high developing ability.

摘要翻译： 本发明的电子照相图像形成装置从各种缺陷中释放图像，包括水平线的变薄，图像的后缘的省略，背景污染，半色调图像特定的粒度，载体散射和图像噪声。 此外，本发明的装置解决了归因于用于检测图像密度的贴片的问题。 此外，本发明的装置忠实地再现音调并具有高显影能力。

公开(公告)号：US07903269B2

公开(公告)日：2011-03-08

申请号：US11156552

申请日：2005-06-21

申请人： Yoshinori Nakagawa ,  Hisashi Shoji ,  Yasushi Nakazato ,  Satoshi Ouchi ,  Nekka Matsuura ,  Osamu Satoh ,  Shuji Hirai ,  Seiji Hoshino ,  Katsuaki Miyawaki

发明人： Yoshinori Nakagawa ,  Hisashi Shoji ,  Yasushi Nakazato ,  Satoshi Ouchi ,  Nekka Matsuura ,  Osamu Satoh ,  Shuji Hirai ,  Seiji Hoshino ,  Katsuaki Miyawaki

IPC分类号： G06K15/00 ,  G06F3/12 ,  G03G15/00 ,  G03G15/22

CPC分类号： G03G15/556 ,  G03G15/0131 ,  G03G15/5054 ,  G03G15/5079 ,  G03G15/55 ,  G03G2215/00059

摘要： An abnormality determining apparatus includes an information storing device that stores information, an information obtaining device that obtains information of a detection subject, a receiving device that receives abnormality presence/absence information indicative of the presence or absence of an abnormality in the detection subject detected by a user, a normal group data set constructing device that constructs a normal group data set that is a collection of normal data indicating that the detection subject is in a normal state based on the abnormality presence/absence information received by the receiving device and based on the information obtained by the information obtaining device during a preset period, and a determining device that determines the presence or absence of an abnormality in the detection subject by performing calculations based on the normal group data set stored in the information storing device and based on the information obtained by the information obtaining device.

摘要翻译： 异常判定装置包括存储信息的信息存储装置，获取检测对象的信息的信息获取装置，接收装置，其接收表示检测对象中存在或不存在异常的异常存在/不存在信息，所述异常存在/不存在信息由 基于由接收装置接收到的异常存在/不存在信息，构成正常组数据组的正常组数据组构成装置，其构成正常组数据集，该正常组数据集是正常数据的集合，该正常数据表示检测对象处于正常状态 在预设期间由信息获取装置获取的信息，以及确定装置，通过基于存储在信息存储装置中的正常组数据集进行计算，并且基于 信息获取获得的信息d 服务。

公开(公告)号：US20050281596A1

公开(公告)日：2005-12-22

申请号：US11156552

申请日：2005-06-21

申请人： Yoshinori Nakagawa ,  Hisashi Shoji ,  Yasushi Nakazato ,  Satoshi Ouchi ,  Nekka Matsuura ,  Osamu Satoh ,  Shuji Hirai ,  Seiji Hoshino ,  Katsuaki Miyawaki

发明人： Yoshinori Nakagawa ,  Hisashi Shoji ,  Yasushi Nakazato ,  Satoshi Ouchi ,  Nekka Matsuura ,  Osamu Satoh ,  Shuji Hirai ,  Seiji Hoshino ,  Katsuaki Miyawaki

IPC分类号： G03G15/00 ,  G03G21/00 ,  G06F15/00

CPC分类号： G03G15/556 ,  G03G15/0131 ,  G03G15/5054 ,  G03G15/5079 ,  G03G15/55 ,  G03G2215/00059

摘要： An abnormality determining apparatus includes an information storing device that stores information, an information obtaining device that obtains information of a detection subject, a receiving device that receives abnormality presence/absence information indicative of the presence or absence of an abnormality in the detection subject detected by a user, a normal group data set constructing device that constructs a normal group data set that is a collection of normal data indicating that the detection subject is in a normal state based on the abnormality presence/absence information received by the receiving device and based on the information obtained by the information obtaining device during a preset period, and a determining device that determines the presence or absence of an abnormality in the detection subject by performing calculations based on the normal group data set stored in the information storing device and based on the information obtained by the information obtaining device.

摘要翻译： 异常判定装置包括存储信息的信息存储装置，获取检测对象的信息的信息获取装置，接收装置，其接收表示检测对象中存在或不存在异常的异常存在/不存在信息，所述异常存在/不存在信息由 基于由接收装置接收到的异常存在/不存在信息，构成正常组数据组的正常组数据组构成装置，其构成正常组数据集，该正常组数据集是正常数据的集合，该正常数据表示检测对象处于正常状态 在预设期间由信息获取装置获取的信息，以及确定装置，通过基于存储在信息存储装置中的正常组数据集进行计算，并且基于 信息获取获得的信息d 服务。

公开(公告)号：US20050157327A1

公开(公告)日：2005-07-21

申请号：US11020729

申请日：2004-12-27

申请人： Hisashi Shoji ,  Osamu Satoh ,  Masaaki Yamada ,  Shuji Hirai ,  Yoshinori Nakagawa ,  Tomoko Takahashi ,  Katsuaki Miyawaki ,  Takashi Seto ,  Nekka Matsuura ,  Satoshi Ouchi ,  Yasushi Nakazato

发明人： Hisashi Shoji ,  Osamu Satoh ,  Masaaki Yamada ,  Shuji Hirai ,  Yoshinori Nakagawa ,  Tomoko Takahashi ,  Katsuaki Miyawaki ,  Takashi Seto ,  Nekka Matsuura ,  Satoshi Ouchi ,  Yasushi Nakazato

IPC分类号： G06F3/12 ,  G06F11/30

CPC分类号： G06F11/0751 ,  G06F3/121 ,  G06F3/1229 ,  G06F11/0754 ,  G06K15/408

摘要： An image forming apparatus is capable of specifying the type of an occurring abnormality to a certain extent while avoiding the increasingly complicated control that is caused when a plurality of abnormalities is detected individually according to the presence of their respective causes. A normal group data set, which is a collection of normal value combinations relating to grouped information constituted by a plurality of information of differing types, is stored in RAM or ROM serving as information storage means of a control unit. At least two or more sets of grouped information, comprising first grouped information constituted by a plurality of different types of information, and second grouped information constituted by a plurality of information in a different combination to that of the first grouped information, are obtained from the RAM, the ROM, various sensors, and an operation display unit. A CPU serving as determining means determines a Mahalanobis distance for each set of grouped information on the basis of the normal group data set and the obtained results of each set of grouped information, and uses this Mahalanobis distance to determine the presence of an abnormality according to categories.

摘要翻译： 图像形成装置能够在一定程度上指定出现的异常的类型，同时避免根据各自原因的存在单独检测到多个异常时引起的越来越复杂的控制。 作为与由多个不同类型的信息构成的分组信息相关的正常值组合的正常组数据集存储在用作控制单元的信息存储装置的RAM或ROM中。 包括由多个不同类型的信息构成的第一分组信息和由与第一分组信息的组合不同的多个信息构成的第二分组信息的至少两组或更多组分组信息从 RAM，ROM，各种传感器以及操作显示单元。 用作确定装置的CPU基于正常组数据集合和每组分组信息的获得结果确定每组分组信息的马氏距离，并且使用该马氏距离来确定根据 类别。