公开(公告)号：US06229980B1

公开(公告)日：2001-05-08

申请号：US09209494

申请日：1998-12-11

申请人： Kenya Ogawa ,  Yukihiro Ozeki ,  Katsuhiro Sakaizawa ,  Takeshi Yamamoto

发明人： Kenya Ogawa ,  Yukihiro Ozeki ,  Katsuhiro Sakaizawa ,  Takeshi Yamamoto

IPC分类号： G03G1508

CPC分类号： G03G15/09 ,  G03G15/0822

摘要： A developing apparatus has a developer carrying member for carrying a developer thereon and conveying it to a developing area opposed to an image bearing member, an agitating member for agitating the developer to be supplied to the developer carrying member and a stripping device for stripping off the developer having passed the developing area from the developer carrying member wherein the developer stripped off from the developer carrying member by the stripping device is guided to a position farther from the developer carrying member than a position at which the agitating member is disposed.

摘要翻译： 显影装置具有用于在其上承载显影剂并将其传送到与图像承载部件相对的显影区域的显影剂承载部件，用于搅拌要供应到显影剂承载部件的显影剂的搅拌部件和剥离装置 显影剂从显影剂承载构件通过显影区域，其中通过剥离装置从显影剂承载构件剥离的显影剂被引导到比设置搅拌构件的位置更远离显影剂承载构件的位置。

公开(公告)号：US5436709A

公开(公告)日：1995-07-25

申请号：US93857

申请日：1993-07-20

申请人： Katsuhiro Sakaizawa ,  Yukihiro Ozeki

发明人： Katsuhiro Sakaizawa ,  Yukihiro Ozeki

IPC分类号： B41J29/00 ,  B41J29/20 ,  G03G15/20 ,  G03G21/00 ,  G03G21/20

CPC分类号： G03G15/2039 ,  G03G15/2046

摘要： A fixing device which can be employed in an image forming apparatus controls energization of a heater which heats a fixing device, and a detector for detecting the condition of fixing operations such as the temperature of the fixing device, energizing time of the heater, types of transfer sheets to be used, and the number of previously performed fixing operations. A controller selects from plural kinds of temperature control on the basis of the condition detected by the detector, and controls energization and temperature of the heater during fixing operation including a backward revolution of the fixing device which is performed after an image is fixed. With the above constitution, both an excellent fixing property of a thick transfer sheet in low temperature environment and prevention against curls and wrinkles of thin transfer sheets in high temperature environment can be realized.

摘要翻译： 可以用于图像形成装置中的定影装置控制加热定影装置的加热器的通电，以及用于检测定影装置的温度，加热器的通电时间等定影操作的状态的检测器， 要使用的转印纸，以及先前执行的定影操作的数量。 控制器根据由检测器检测到的状况从多种温度控制中进行选择，并且在固定操作期间控制加热器的通电和温度，包括在图像被固定之后进行的定影装置的向后旋转。 利用上述结构，可以实现在低温环境中厚转印片材的优良定影性能，并且可以防止在高温环境中的薄转印片材的卷曲和皱纹。

公开(公告)号：US06389253B1

公开(公告)日：2002-05-14

申请号：US09629868

申请日：2000-08-01

申请人： Makoto Nonomura ,  Yukihiro Ozeki ,  Katsuhiro Sakaizawa ,  Manami Sekiguchi

发明人： Makoto Nonomura ,  Yukihiro Ozeki ,  Katsuhiro Sakaizawa ,  Manami Sekiguchi

IPC分类号： G03G1530

CPC分类号： G03G15/0812

摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic latent image, and a developing device for developing the electrostatic latent image with a developer and collecting the developer remaining on the image bearing member including a developer carrying member for carrying the developer. The developer carried by the developer carrying member comes into contact with the image bearing member as the developer carrying member moves and a regulating member for regulating a layer thickness of the developer carried by the developer carrying member. The regulating member regulates the layer thickness of the developer carried by the developer carrying member so that there will be three to eight layers, wherein V2/V1>1.54 holds where V1 is a peripheral velocity of said image bearing member and V2 is a peripheral velocity of said developer carrying member.

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和用显影剂显影静电潜像的显影装置，并收集包含用于承载显影剂的显影剂承载部件的图像承载部件上残留的显影剂。 当显影剂承载构件移动时，由显影剂承载构件承载的显影剂与图像承载构件接触，以及用于调节由显影剂承载构件承载的显影剂的层厚度的调节构件。 调节构件调节由显影剂承载构件承载的显影剂的层厚度，使得将存在三至八层，其中V2 / V1> 1.54成立，其中V1是所述图像承载构件的圆周速度，V2是圆周速度 的所述显影剂承载构件。

公开(公告)号：US06714754B2

公开(公告)日：2004-03-30

申请号：US10245372

申请日：2002-09-18

申请人： Yukihiro Ozeki ,  Katsuhiro Sakaizawa ,  Makoto Nonomura ,  Manami Sekiguchi

发明人： Yukihiro Ozeki ,  Katsuhiro Sakaizawa ,  Makoto Nonomura ,  Manami Sekiguchi

IPC分类号： G03G1508

CPC分类号： G03G15/0818 ,  G03G2215/0861

摘要： A developing roller for electrophotography is disclosed which is composed of a conductive mandrel, a charge-providing layer having a charge-providing performance to a non-magnetic one-component toner, formed at the surface of the roller, a base layer having an elasticity, formed at a position nearer to the mandrel of the roller than the charge-providing layer and an elastic intermediate layer formed at a position between the base layer and the charge-providing layer. The elastic intermediate layer is formed of a composition having a contact angle to water which is smaller than that of a composition for forming the base layer. Also, disclosed are a developing apparatus, an apparatus unit and an image forming apparatus using the developing roller.

摘要翻译： 公开了一种用于电子照相的显影辊，其由形成在辊的表面处的导电心轴，具有对非磁性单组分调色剂的电荷提供性能的电荷提供层，具有弹性的基底层 形成在比电荷提供层更靠近辊的心轴的位置处，以及形成在基底层和电荷提供层之间的位置处的弹性中间层。 弹性中间层由与水的接触角小于用于形成基底层的组合物的接触角的组合物形成。 还公开了使用显影辊的显影装置，装置单元和图像形成装置。

公开(公告)号：US06484007B1

公开(公告)日：2002-11-19

申请号：US09643423

申请日：2000-08-22

申请人： Yukihiro Ozeki ,  Katsuhiro Sakaizawa ,  Makoto Nonomura ,  Manami Sekiguchi

发明人： Yukihiro Ozeki ,  Katsuhiro Sakaizawa ,  Makoto Nonomura ,  Manami Sekiguchi

IPC分类号： G03G1508

CPC分类号： G03G15/0818 ,  G03G2215/0861

摘要： A developing roller for electrophotography is disclosed which is composed of a conductive mandrel, a charge-providing layer having a charge-providing performance to a non-magnetic one-component toner, formed at the surface of the roller, a base layer having an elasticity, formed at a position nearer to the mandrel of the roller than the charge-providing layer and an elastic intermediate layer formed at a position between the base layer and the charge-providing layer. The elastic intermediate layer is formed of a composition having a contact angle to water which is smaller than that of a composition for forming the base layer. Also, disclosed are a developing apparatus, an apparatus unit and an image forming apparatus using the developing roller.

摘要翻译： 公开了一种用于电子照相的显影辊，其由形成在辊的表面处的导电心轴，具有对非磁性单组分调色剂的电荷提供性能的电荷提供层，具有弹性的基底层 形成在比电荷提供层更靠近辊的心轴的位置处，以及形成在基底层和电荷提供层之间的位置处的弹性中间层。 弹性中间层由与水的接触角小于用于形成基底层的组合物的接触角的组合物形成。 还公开了使用显影辊的显影装置，装置单元和图像形成装置。

公开(公告)号：US06376087B1

公开(公告)日：2002-04-23

申请号：US09413465

申请日：1999-10-06

申请人： Yukihiro Ozeki ,  Katsuhiro Sakaizawa

发明人： Yukihiro Ozeki ,  Katsuhiro Sakaizawa

IPC分类号： B32B904

CPC分类号： G03G15/0818 ,  Y10T428/31551 ,  Y10T428/31663

摘要： It is proposed to provide a developing agent carrier, developing unit, and image forming apparatus which can stably obtain a high-quality image. There is provided a developing agent carrier comprising an elastic portion which comes into contact with an image carrier, wherein an Asker C hardness of the elastic portion is not less than 20 and not more than 40, and a dynamic friction coefficient of a surface of the elastic portion is not less than 0.01 and not more than 0.2.

摘要翻译： 提出提供能够稳定地获得高质量图像的显影剂载体，显影单元和图像形成装置。 提供了一种显影剂载体，其包括与图像载体接触的弹性部分，其中弹性部分的Asker C硬度不小于20且不大于40，并且表面的动摩擦系数 弹性部分不小于0.01且不大于0.2。

公开(公告)号：US5587773A

公开(公告)日：1996-12-24

申请号：US366431

申请日：1994-12-30

申请人： Hideyuki Yano ,  Junji Araya ,  Yukihiro Ozeki ,  Harumi Kugo ,  Katsuhiro Sakaizawa ,  Tadashi Furuya ,  Osamu Iwasaki

发明人： Hideyuki Yano ,  Junji Araya ,  Yukihiro Ozeki ,  Harumi Kugo ,  Katsuhiro Sakaizawa ,  Tadashi Furuya ,  Osamu Iwasaki

IPC分类号： G03G5/147 ,  G03G5/10 ,  G03G15/00 ,  G03G15/09 ,  G03G15/34

CPC分类号： G03G5/10 ,  G03G15/344 ,  G03G5/104 ,  G03G5/147 ,  G03G5/14704 ,  G03G2215/0497 ,  G03G5/14769

摘要： An electrophotographic apparatus for simultaneously performing image exposure and development including an electrophotographic photosensitive body comprising a conductive layer and an electrophotographic photosensitive layer formed on the translucent substrate. An optical system is provided for exposing the image from the side of the translucent substrate of the photosensitive body, and a developer apparatus is arranged opposing to the side of photosensitive layer of the exposure position of the photosensitive body for supplying developer charged with the developing bias.

摘要翻译： 一种用于同时进行图像曝光和显影的电子照相装置，包括电子照相感光体，其包含形成在透光性基板上的导电层和电子照相感光层。 提供了一种光学系统，用于从感光体的透光性基板的一侧露出图像，并且显影装置布置成与感光体的曝光位置的感光层的一侧相对，用于供给显影剂 。

公开(公告)号：US08437678B2

公开(公告)日：2013-05-07

申请号：US12552892

申请日：2009-09-02

申请人： Kazunari Hagiwara ,  Norio Takahashi ,  Katsuhiro Sakaizawa ,  Rie Endo

发明人： Kazunari Hagiwara ,  Norio Takahashi ,  Katsuhiro Sakaizawa ,  Rie Endo

IPC分类号： G03G21/00

CPC分类号： G03G15/065 ,  G03G15/0812

摘要： An image forming apparatus includes a developer bearing member configured to bear a developer to develop a latent image, a developer regulating member configured to regulate an amount of the developer carried on the bearing member, a voltage application unit that can apply a plurality of direct current voltages of different values between the bearing member and the regulating member, and a current detection unit that can detect a plurality of direct currents of different values flowing in the regulating member when the voltage application unit applies the plurality of direct current voltages, wherein the image forming apparatus sets a direct current voltage value Vb applied by the voltage application unit when developing the latent image, so that the following expression is satisfied: |Vb|>|Vbmin|, where Vbmin indicates a direct current voltage value when the direct current detected by the current detection unit is a minimum value.

公开(公告)号：US20110026978A1

公开(公告)日：2011-02-03

申请号：US12904007

申请日：2010-10-13

申请人： Shinichi Nishida ,  Katsunori Yokoyama ,  Yasushi Shimizu ,  Kazunari Hagiwara ,  Katsuhiro Sakaizawa ,  Rie Endo ,  Naoto Kichijima

发明人： Shinichi Nishida ,  Katsunori Yokoyama ,  Yasushi Shimizu ,  Kazunari Hagiwara ,  Katsuhiro Sakaizawa ,  Rie Endo ,  Naoto Kichijima

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

摘要： An amount-of-developer regulating apparatus configured to restrict the amount of developer carried on a developer bearing member. The amount-of-developer regulating apparatus includes a flexible developer amount regulation member having a contact portion configured to contact with a developer bearing member, and first and second holding portions configured to hold the developer amount regulation member and to contact with the developer amount regulation member at further upstream and further downstream in a direction where the developer bearing member is rotationally moved than the contact portion. With a pressure distribution of the contact portion as to the developer bearing member, there are a plurality of local maximum values in the direction where the developer bearing member is rotationally moved. Thus, the apparatus can be reduced in size, and also image concentration unevenness after long-term use can be prevented.

摘要翻译： 一种显影剂调节装置，其被配置为限制承载在显影剂承载部件上的显影剂的量。 显影剂量调节装置包括柔性显影剂量调节构件，其具有构造成与显影剂承载构件接触的接触部分，以及构造成保持显影剂量调节构件并与显影剂量调节剂接触的第一和第二保持部分 构件在显影剂承载构件比接触部分旋转移动的方向的更上游和更下游。 通过接触部分对显影剂承载部件的压力分布，在显影剂承载部件被旋转移动的方向上存在多个局部最大值。 因此，可以减小装置的尺寸，并且可以防止长期使用后的图像浓度不均匀。

公开(公告)号：US20090003863A1

公开(公告)日：2009-01-01

申请号：US12118286

申请日：2008-05-09

申请人： Kazunari Hagiwara ,  Katsuhiro Sakaizawa ,  Norio Takahashi ,  Rie Endo

发明人： Kazunari Hagiwara ,  Katsuhiro Sakaizawa ,  Norio Takahashi ,  Rie Endo

IPC分类号： G03G15/10

CPC分类号： G03G15/0818 ,  G03G15/0808 ,  G03G2215/0135

摘要： A developing apparatus in which a toner has a volume-average particle diameter R that is in a range of 4.0 μm≦R≦6.2 μm, a developing roller has an arithmetic mean roughness Ra (μm) that is not more than 0.10 times the volume-average particle diameter R of the toner, a voltage applied to a supply roller is of negative polarity, that is, a normal charging polarity of the toner, triboelectrification polarity of the supply roller with respect to the toner is negative, that is, of the normal charging polarity of the toner, and an abutment width S in which the developing roller and the supply roller abut each other is in a range of 2.5 mm≦S≦5.5 mm.

摘要翻译： 一种显影装置，其中调色剂的体积平均粒径R在4.0μm<= R <=6.2μm的范围内，显影辊的算术平均粗糙度Ra（mum）不大于0.10倍 调色剂的体积平均粒径R，施加到供给辊的电压为负极性，即调色剂的正常充电极性，供给辊相对于调色剂的摩擦带电极性为负，也就是说 的调色剂的正常充电极性，以及显影辊和供给辊彼此抵接的抵接宽度S在2.5mm≤S<= 5.5mm的范围内。