公开(公告)号：EP1113339A2

公开(公告)日：2001-07-04

申请号：EP00311749.6

申请日：2000-12-28

申请人： SHARP KABUSHIKI KAISHA

发明人： Yamanaka, Takayuki ,  Inoue, Atsushi ,  Kido, Eiichi ,  Kobayashi, Mikie ,  Wakada, Shigeyuki ,  Masuda, Jitsuo ,  Ohgoshi, Toshihide ,  Tatsumi, Hiroshi ,  Sakai, Masahiro

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

摘要： A cleaning element is arranged on the backside of the toner layer metering blade, i.e., the side opposite to the surface in contact with the developer support, in order to prevent the cleaning element from damaging the blade surface and the abutment surface of the metering blade against the developer support. This cleaning element is frictionally moved across the backside of the toner layer metering blade to remove stuck toner from the toner layer metering blade or prevent occurrence of buildups.

摘要翻译： 为了防止清洁元件损坏叶片表面和计量刮刀的邻接表面，在调色剂层计量刮刀的背面（即，与与显影剂支撑件接触的表面相反的一侧）布置清洁元件 反对开发者的支持。 该清洁元件在墨粉层计量刮板的背面摩擦移动以从墨粉层计量刮板移除卡住的墨粉或防止累积的发生。

公开(公告)号：EP0731389A1

公开(公告)日：1996-09-11

申请号：EP96301618.3

申请日：1996-03-08

申请人： SHARP KABUSHIKI KAISHA

发明人： Toyoshima, Tetsuro ,  Iwamatsu, Tadashi ,  Azuma, Nobuyuki ,  Fujita, Hideaki ,  Yamanaka, Takayuki

IPC分类号： G03G9/08

CPC分类号： G03G13/08 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G2215/0619

摘要： A toner which can exhibit 5 nN or less of inter-particle force calculated by the following equation (1) when the toner is laminated and carried on a toner carrier: Fv = q·E - Fi
where Fv is an inter-particle force, q · E is a Coulomb force calculated by the following equation: q·E = q·{Vb + (Q/M)·δ·P·dt 1 ​ 2 /(2εoε T )}/(ε T·g + dt 1 )
where Fi is an image-force calculated by the following equation (3): Fi = {(W 1 ·πd 3 ·δ) / (6 εo ε T )}·(Q/M) 2
where q is a quantity of charge [C] of the toner particle to be developed, E is an electric field strength [V/m] acting on the toner layer, Q/M is a toner charge-to-mass ratio [mC/g], W 1 is an amount of toner separated by development among the toner laminated and carried on the toner carrier, εo is a vacuum dielectric constant [C/(V·m)], ε T is an apparent specific dielectric constant [C/(V·m)] of the toner layer, d is an average particle size [µm] of the toner, δ is a true density [g/cm 3 ] of the toner, g is a gap [mm] between the outermost surface of the toner on the toner carrier and the electrostatic latent image holder, dt 1 is a thickness [µm] of the toner layer on the toner carrier, Vb is a development bias voltage [V] and P is a toner packing rate.
The present invention provides a toner and a non-contact developing method using the same which realize stable flying-development by suppressing to 5 nN or less the inter-particle force of the toner other than the image-force acting on the toner laminated and carried on the toner carrier.

摘要翻译： 当调色剂层压并承载在调色剂载体上时，可以表现出通过以下等式（1）计算的5nN或更小的颗粒间力的调色剂：其中Fv是颗粒间力，q。 E是通过以下等式计算的库仑力：其中Fi是通过以下等式（3）计算的图像力：其中q是待显影的调色剂颗粒的电荷量ÄCÜ，E 是作用在调色剂层上的电场强度ÄV/ m，Q / M是调色剂电荷质量比ÄmC/ gÜ，W1是在层压并承载在调色剂载体上的调色剂之间通过显影分离的调色剂量， ε是真空介电常数ÄC/（Vm）Ü，εT是调色剂层的表观比介电常数ÄC/（Vm）Ü，d是调色剂的平均颗粒尺寸ÄmumÜ，δ是真的 调色剂的密度Äg/ cm 3，g是调色剂载体上的调色剂的最外表面与静电潜像保持体之间的间隙Ämm，dt1是调色剂载体上调色剂层的厚度Äμm Vb是显影偏压ÄVÜ，P是调色剂包装率。 本发明提供一种调色剂和非接触显影方法，其通过抑制5nN以下的调色剂和非接触显影方法，除了作用在层叠和承载的调色剂上的图像力之外，调色剂的颗粒间力 在调色剂载体上。

公开(公告)号：EP0577077A2

公开(公告)日：1994-01-05

申请号：EP93110368.3

申请日：1993-06-29

申请人： SHARP KABUSHIKI KAISHA

发明人： Toyoshima, Tetsuro ,  Ueda, Tetsuyuki ,  Inoue, Atsushi ,  Kamimura, Taisuke ,  Fujita, Hideaki ,  Yamanaka, Takayuki

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/065 ,  G03G15/0808 ,  G03G2215/0619

摘要： A developing device for developing, by using a developer, a latent image formed on a surface of an image data forming member (7) including a developer accommodating section (14) for accommodating the developer (13); a first developer retaining member (1) for receiving the developer from the developer accommodating section (14) and transporting the developer; a second developer retaining member (2) for receiving the developer from the first developer retaining member (1) and making the developer adhere to the latent image formed on the image data forming member (7); a conductive member (3) opposed to the second developer retaining member (2) with an appropriate space (4) interposed therebetween; a first voltage applying member (11) for applying a voltage between the first developer retaining member (1) and the second developer retaining member (2); a second voltage applying member (9) for applying a voltage between the second developer retaining member (2) and the surface of the image data forming member (7); and a third voltage applying member (10) for applying a voltage between the second developer retaining member (2) and the conductive member (3) in order to form an electric field in the space (4) therebetween.

摘要翻译： 一种用于通过使用显影剂显影形成在包括用于容纳显影剂的显影剂容纳部分的图像数据形成部件的表面上的潜像的显影装置; 第一显影剂保持构件，用于从显影剂容纳部分接收显影剂并运送显影剂; 第二显影剂保持构件，用于从第一显影剂保持构件接收显影剂，并使显影剂附着到形成在图像数据形成构件上的潜像; 与第二显影剂保持构件相对的导电构件，其间具有适当的空间; 用于在第一显影剂保持构件和第二显影剂保持构件之间施加电压的第一电压施加构件; 第二电压施加构件，用于在第二显影剂保持构件和图像数据形成构件的表面之间施加电压; 以及第三电压施加构件，用于在第二显影剂保持构件和导电构件之间施加电压，以便在它们之间的空间中形成电场。

公开(公告)号：EP0921445B1

公开(公告)日：2004-09-15

申请号：EP98123182.2

申请日：1998-12-04

申请人： SHARP KABUSHIKI KAISHA

发明人： Yamada, Masanori ,  Yamanaka, Takayuki ,  Takaya, Toshihiko ,  Iwamatsu, Tadashi ,  Inoue, Atsushi ,  Azuma, Nobuyuki ,  Yasuda, Keiji ,  Matsuyama, Kazuhiro ,  Tatsumi, Hiroshi

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

公开(公告)号：EP1091265A2

公开(公告)日：2001-04-11

申请号：EP00308780.6

申请日：2000-10-05

申请人： SHARP KABUSHIKI KAISHA

发明人： Shinkawa, Kouji ,  Sakai, Takashi ,  Yamanaka, Takayuki ,  Inoue, Atsushi ,  Masuda, Jitsuo

IPC分类号： G03G21/10

CPC分类号： G03G21/12 ,  G03G21/105

摘要： In image forming apparatuses producing recycled toner from residual toner and recycling the recycled toner, the toner composition changes, and the toner properties worsen, because the external additive contained in the collected residual toner that is collected with a cleaning portion (6) decreases during the image formation. The residual toner that has been collected with the cleaning portion (6) is conveyed through a conveyance path (51) to a collected residual toner storage (62), and external additive is supplemented from an external additive cartridge (64), and mixed with being stirred to produce recycled toner. In a fresh toner storage (63), fresh toner end recycled toner are stirred, and when the amount of toner in a developing portion (4) drops below a predetermined amount, toner is conveyed from the fresh toner storage (63) through a conveyance path (68) to the developing portion (4). The toner that has been conveyed to the developing portion (4) is supplied to a photosensitive drum (1).

摘要翻译： 在由残留调色剂制造再生调色剂并再循环再生调色剂的图像形成装置中，调色剂组合物变化，并且调色剂性能变差，这是因为在清洁部分（6）收集的收集的残留调色剂中包含的外部添加剂在 图像形成。 用清洁部分（6）收集的残留调色剂通过输送路径（51）输送到收集的残余调色剂存储器（62），并且从外部添加剂盒（64）补充外部添加剂，并将其与 搅拌以产生回收的调色剂。 在新调色剂存储装置（63）中，搅拌新调色剂端回收调色剂，并且当显影部分（4）中的调色剂量下降到预定量以下时，调色剂从新调色剂存储装置（63） （68）传送到显影部分（4）。 已经传送到显影部分（4）的调色剂被供应到感光鼓（1）。

公开(公告)号：EP0939349A3

公开(公告)日：2000-11-02

申请号：EP99103588.2

申请日：1999-02-24

申请人： Sharp Kabushiki Kaisha

发明人： Iwamatsu, Tadashi ,  Matsuyama, Kazuhiro ,  Takaya, Toshihiko ,  Inoue, Atsushi ,  Yamada, Masanori ,  Azuma, Nobuyuki ,  Yamanaka, Takayuki

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： An object of the present invention is to prevent an electrical breakdown of a toner layer and an occurrence of overcurrent, thereby preventing quality of image from being degraded at the time of development, when development with one-component toner is conducted using a developing roller of low resistance. The resistance value Rd of a developing roller (41) which carries and conveys one-component toner (10) in a manner of coming into contact with a photoconductor (1) which bears an electrostatic latent image, is defined as Rd = ρd · (Dd1/S1), wherein S1 (cm 2 ) is an area in which the developing roller (41) comes into contact with the static image bearing member via a toner layer (45), Dd1 (cm) is a layer thickness of a semiconductive layer which composes the developing roller, and ρd (Ω · cm) is a volume resistivity thereof. The range of the resistance Rd is set as 10 4 5 and the resistance Rt (Ω) of the toner layer is set as Rt > 5 × 10 7 . By using the developing roller (41) of low resistance, excellent development is realized and an electrical breakdown and an overcurrent can be avoided by the resistance value of the toner layer.

摘要翻译： 本发明的目的是防止调色剂层的电击穿和过电流的发生，从而防止在显影时图像的质量劣化，当使用单组分调色剂进行显影时，使用显影辊 低电阻。 以与静电潜像的感光体（1）接触的方式携带并输送单组分调色剂（10）的显影辊（41）的电阻值Rd被定义为Rd = rho d。 （Dd1 / S1），其中S1（cm2）是显影辊（41）经由调色剂层（45）与静态图像承载部件接触的区域，Dd1（cm）是层厚度 构成显影辊的半导体层，其中，电极（OMEGA·cm）为体积电阻率。 电阻Rd的范围设定为10 ，调色剂层的电阻Rt（OMEGA）设定为Rt> 5×10 7。 通过使用低电阻的显影辊（41），实现了优异的显影，并且通过调色剂层的电阻值可以避免电击穿和过电流。

公开(公告)号：EP1113339B1

公开(公告)日：2006-07-26

申请号：EP00311749.6

申请日：2000-12-28

申请人： SHARP KABUSHIKI KAISHA

发明人： Yamanaka, Takayuki ,  Inoue, Atsushi ,  Kido, Eiichi ,  Kobayashi, Mikie ,  Wakada, Shigeyuki ,  Masuda, Jitsuo ,  Ohgoshi, Toshihide ,  Tatsumi, Hiroshi ,  Sakai, Masahiro

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

公开(公告)号：EP0843234B1

公开(公告)日：2002-08-14

申请号：EP98102009.2

申请日：1993-06-29

申请人： SHARP KABUSHIKI KAISHA

发明人： Toyoshima, Tetsuro ,  Ueda, Tetsuyuki ,  Inoue, Atsushi ,  Kamimura, Taisuke ,  Fujita, Hideaki ,  Yamanaka, Takayuki

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/065 ,  G03G15/0808 ,  G03G2215/0619

公开(公告)号：EP0921445A3

公开(公告)日：2000-07-12

申请号：EP98123182.2

申请日：1998-12-04

申请人： SHARP KABUSHIKI KAISHA

发明人： Yamada, Masanori ,  Yamanaka, Takayuki ,  Takaya, Toshihiko ,  Iwamatsu, Tadashi ,  Inoue, Atsushi ,  Azuma, Nobuyuki ,  Yasuda, Keiji ,  Matsuyama, Kazuhiro ,  Tatsumi, Hiroshi

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

摘要： A blade (25) is pressed against a developing roller (21) for regulating the amount of toner which is deposited on a surface of the developing roller (21). The blade (25) is formed with a slant face (25a) at its tip end, to which the toner is transported along a direction of rotation of the developing roller (21). An angle of aperture θ at a toner inlet portion defined by the developing roller (21) and the slant face (25a) is set at 12.5° or more, the angle of aperture counting in an angle ψ of the slant face (25a), elastic deformation and radius (R) of the developing roller (21), and an angle α related to a nip width w on which the blade contacts with the developing roller (21). Such an angle of aperture θ provides a great allowance for a free length of the blade (25), thereby permitting the blade to maintain a constant toner mass for forming a uniform toner layer.

摘要翻译： 叶片（25）被压在显影辊（21）上，用于调节沉积在显影辊（21）的表面上的调色剂的量。 刀片（25）在其前端形成有倾斜面（25a），调色剂沿显影辊（21）的旋转方向传送到该倾斜面。 孔角度和角度; 在由显影辊（21）和倾斜面（25a）限定的调色剂入口部分设定为12.5°或更大时，斜面（25a）的角度psi的孔径计数角度，弹性变形和半径 R）和与刀片与显影辊（21）接触的辊隙宽度w相关的角度α。 这样的孔径角度; 为刀片（25）的自由长度l提供了很大的余量，从而允许刀片保持恒定的调色剂质量以形成均匀的调色剂层。

公开(公告)号：EP0841599A3

公开(公告)日：1999-10-13

申请号：EP97118823.0

申请日：1997-10-29

申请人： SHARP KABUSHIKI KAISHA

发明人： Toyoshima, Tetsuro ,  Azuma, Nobuyuki ,  Yamanaka, Takayuki

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

摘要： A developing device has a development roller for carrying toner on a surface thereof, a toner supply roller for supplying the toner to the development roller, a flat spring which comes into contact with the development roller, charges the toner to be supplied to the development roller and applies the toner to the development roller while regulating the thickness of a layer of the toner. The flat spring has a plurality of flat-plate parts including a contact flat-plate part which comes into contact with the development roller, and a curved part which connects the flat-plate parts to each other. In this structure, by arbitrarily selecting dimensional parameters of the flat spring, it is possible to easily obtain various flat springs having different properties. Therefore, for example, the stress to the toner and the stress to the members can be easily reduced simultaneously with a design of the flat spring. Moreover, it is possible to improve the uniformity of the toner layer thickness in the axis direction of the development roller and the uniformity of charging of the toner.