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1. 发明授权

EP1832939B1 Development apparatus, image forming apparatus and development method using mixed-in opposite polarity particles 有权
公开(公告)号：EP1832939B1
公开(公告)日：2018-06-06
申请号：EP07004354.2
申请日：2007-03-02
申请人： Konica Minolta Business Technologies, Inc.
发明人： Maeyama, Takeshi , Natsuhara, Toshiya , Hirayama, Junya , Matsuura, Masahiko , Uetake, Shigeo
IPC分类号： G03G15/08
CPC分类号： G03G15/081 , G03G15/0887 , G03G15/0891 , G03G2215/0607 , G03G2221/0005
摘要： The purpose is to provide, in a development apparatus using a two-component developer, a compact development apparatus, image forming apparatus and development method that prevents carrier deterioration and that can carry out good image formation over a long time period. In a development apparatus using a developer in which are mixed a toner, a carrier, and opposite polarity particles that are charged to a polarity opposite to the charging polarity of the toner, the surface charge density of the opposite polarity particles should be in the range of 0.5 to 3.0 times the surface charge density of the carrier.

2. 发明公开

EP1832939A3 Development apparatus, image forming apparatus and development method using mixed-in opposite polarity particles 有权
标题翻译：其中颗粒混合极性相反的显影剂的显影装置，图像形成装置及显影方法
公开(公告)号：EP1832939A3
公开(公告)日：2013-08-07
申请号：EP07004354.2
申请日：2007-03-02
申请人： Konica Minolta Business Technologies, Inc.
发明人： Maeyama, Takeshi , Natsuhara, Toshiya , Hirayama, Junya , Matsuura, Masahiko , Uetake, Shigeo
IPC分类号： G03G15/08
CPC分类号： G03G15/081 , G03G15/0887 , G03G15/0891 , G03G2215/0607 , G03G2221/0005
摘要： The purpose is to provide, in a development apparatus using a two-component developer, a compact development apparatus, image forming apparatus and development method that prevents carrier deterioration and that can carry out good image formation over a long time period. In a development apparatus using a developer in which are mixed a toner, a carrier, and opposite polarity particles that are charged to a polarity opposite to the charging polarity of the toner, the surface charge density of the opposite polarity particles should be in the range of 0.5 to 3.0 times the surface charge density of the carrier.

3. 发明公开

EP1830232A2 Development apparatus, image forming apparatus and development method 有权
标题翻译： Entwicklungsvorrichtung，Bilderzeugungsvorrichtung und Entwicklungsverfahren
公开(公告)号：EP1830232A2
公开(公告)日：2007-09-05
申请号：EP07003883.1
申请日：2007-02-26
申请人： KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
发明人： Matsuura, Masahiko , Natsuhara, Toshiya , Hirayama, Junya , Maeyama, Takeshi , Uetake, Shigeo
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G2215/0609
摘要： In a development apparatus of the hybrid method using a component developer, a development apparatus and a development method that prevent the reduction of density or the occurrence of residual images (ghost images) and can carry out good image forming over a long period. A development apparatus having the feature that the surfaces of the toner supporting member and the developer supporting member move in a mutually opposite direction at the part that they are opposite to each other, and the electric field in the closest part applied in a direction to recover the toner from the toner supporting member to the developer supporting member is in the range from 2.5 x 10 6 V/m to 5 x 10 6 V/m, and the share (PD) of the developer in the space of the closest part of the opposing portion satisfies the following relationship. 0.09 ≤ PD ≤ 650 × Dss
摘要翻译：在使用组分显影剂（24）的混合方法的显影装置中，显影装置（2）和防止残留图像（重影图像）的浓度降低或发生的显影方法，并且可以进行良好的图像形成很长一段时间一种显影装置（2），其特征在于，调色剂支撑构件（25）和显影剂支撑构件（11）的表面在它们彼此相对的部分处沿相反的方向移动，并且电场将从调色剂支撑构件（25）向显影剂支撑构件（11）回收调色剂的方向最接近的部分在2.5×10 6 V / m至5×10 6 V / m的范围内，并且在相对部分的最靠近部分的空间中的显影剂（24）的共享（PD）满足以下关系。 0.09‰¤PD‰¤650×Dss

4. 发明授权

EP1967913B1 Developing device and image forming apparatus 有权
公开(公告)号：EP1967913B1
公开(公告)日：2019-06-26
申请号：EP08004032.2
申请日：2008-03-04
申请人： Konica Minolta Business Technologies, Inc.
发明人： Hirayama, Junya , Natsuhara, Toshiya , Maeyama, Takeshi , Uetake, Shigeo
IPC分类号： G03G15/08

5. 发明公开

EP1862869A2 Image forming apparatus 有权
标题翻译： Bilderzeugungsvorrichtung
公开(公告)号：EP1862869A2
公开(公告)日：2007-12-05
申请号：EP07010493.0
申请日：2007-05-25
申请人： KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
发明人： Uetake, Shigeo , Natsuhara, Toshiya , Hirayama, Junya , Matsuura, Masahiko , Maeyama, Takeshi
IPC分类号： G03G15/18
CPC分类号： G03G15/0887 , G03G15/0891 , G03G2215/0607
摘要： A developing unit (2a) using a two-component developer (24) intended to provide an image forming apparatus capable of forming a high-quality image for a long period of time. A developing unit (2a) using a developer (24) contains toner, carrier and opposite polarity particles having a polarity opposite to the charging polarity of toner includes separation means (22) for separating the toner or opposite polarity particles, and control mechanism (Vb1,Vb2) for controlling opposite polarity particle separation ratio in response to the image area ratio and the number of prints.
摘要翻译：一种使用双组分显影剂（24）的显影单元（2a），其旨在提供能够长时间形成高质量图像的图像形成装置。使用显影剂（24）的显影单元（2a）包含具有与调色剂的充电极性相反的极性的调色剂，载体和相反极性的颗粒，包括用于分离调色剂或相反极性颗粒的分离装置（22）和控制机构，Vb2），用于响应于图像面积比和印刷数来控制相反极性的粒子分离比。

6. 发明公开

EP1967913A3 Developing device and image forming apparatus 有权
标题翻译：显影装置及图像形成装置
公开(公告)号：EP1967913A3
公开(公告)日：2012-10-03
申请号：EP08004032.2
申请日：2008-03-04
申请人： Konica Minolta Business Technologies, Inc.
发明人： Hirayama, Junya , Natsuhara, Toshiya , Maeyama, Takeshi , Uetake, Shigeo
IPC分类号： G03G15/08
CPC分类号： G03G15/0815 , G03G15/0808
摘要： An image forming apparatus provided with an image carrying member to carry an electrostatic latent image, a toner carrying member to develop the electrostatic latent image on the image carrying member with toner; a first developer carrying member to carry developer containing toner, carrier, reverse polarity particles and to supply toner to the toner carrying member; and a second developer carrying member to carry developer and to recover toner on the toner carrying member, wherein an ability to move the reverse polarity particles from the toner carrying member to the first developer carrying member is larger than an ability to move the reverse polarity particles from the second developer carrying member to the toner carrying member.

7. 发明授权

EP1830232B1 Development apparatus, image forming apparatus and development method 有权
标题翻译：显影装置，图像形成装置和方法发展
公开(公告)号：EP1830232B1
公开(公告)日：2011-12-14
申请号：EP07003883.1
申请日：2007-02-26
申请人： Konica Minolta Business Technologies, Inc.
发明人： Matsuura, Masahiko , Natsuhara, Toshiya , Hirayama, Junya , Maeyama, Takeshi , Uetake, Shigeo
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G2215/0609

8. 发明公开

EP1868040A3 Developing apparatus and image forming apparatus 审中-公开
标题翻译：显影装置及图像形成装置
公开(公告)号：EP1868040A3
公开(公告)日：2010-09-29
申请号：EP07011378.2
申请日：2007-06-11
申请人： Konica Minolta Business Technologies, Inc.
发明人： Hirayama, Junya , Natsuhara, Toshiya , Matsuura, Masahiko , Maeyama, Takeshi , Uetake, Shigeo
IPC分类号： G03G15/18
CPC分类号： G03G15/0815 , G03G2215/0602 , G03G2215/0607
摘要： A compact development apparatus (2a) using a two-component developer (24) and an image forming apparatus wherein carrier deterioration is prevented to ensure formation of a high-quality image for a long time. The development apparatus (2a) uses the developer (24) made up of a mixture of toner, carrier, and opposite polarity particles to be charged oppositely to the toner wherein the opposite polarity particles contain the particles having a relative dielectric constant of 6.7 or more.

9. 发明公开

EP1830232A3 Development apparatus, image forming apparatus and development method 有权
标题翻译：显影装置，图像形成装置和方法发展
公开(公告)号：EP1830232A3
公开(公告)日：2010-06-09
申请号：EP07003883.1
申请日：2007-02-26
申请人： Konica Minolta Business Technologies, Inc.
发明人： Matsuura, Masahiko , Natsuhara, Toshiya , Hirayama, Junya , Maeyama, Takeshi , Uetake, Shigeo
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G2215/0609
摘要： In a development apparatus of the hybrid method using a component developer (24), a development apparatus (2) and a development method that prevent the reduction of density or the occurrence of residual images (ghost images) and can carry out good image forming over a long period. A development apparatus (2) having the feature that the surfaces of the toner supporting member (25) and the developer supporting member (11) move in a mutually opposite direction at the part that they are opposite to each other, and the electric field in the closest part applied in a direction to recover the toner from the toner supporting member (25) to the developer supporting member (11) is in the range from 2.5 x 10 6 V/m to 5 x 10 6 V/m, and the share (PD) of the developer (24) in the space of the closest part of the opposing portion satisfies the following relationship. 0.09 ≤ PD ≤ 650 × Dss

10. 发明授权

EP1862869B1 Image forming apparatus 有权
公开(公告)号：EP1862869B1
公开(公告)日：2012-02-15
申请号：EP07010493.0
申请日：2007-05-25
申请人： Konica Minolta Business Technologies, Inc.
发明人： Uetake, Shigeo , Natsuhara, Toshiya , Hirayama, Junya , Matsuura, Masahiko , Maeyama, Takeshi
IPC分类号： G03G15/08
CPC分类号： G03G15/0887 , G03G15/0891 , G03G2215/0607

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