公开(公告)号：US5960239A

公开(公告)日：1999-09-28

申请号：US959615

申请日：1997-10-28

申请人： Tetsuro Toyoshima ,  Nobuyuki Azuma ,  Takayuki Yamanaka

发明人： Tetsuro Toyoshima ,  Nobuyuki Azuma ,  Takayuki Yamanaka

IPC分类号： G03G15/08 ,  G03G15/06

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.

摘要翻译： 显影装置具有用于在其表面上承载调色剂的显影辊，用于向显影辊供应调色剂的调色剂供应辊，与显影辊接触的平板弹簧，将要供应到显影辊的调色剂 并且在调节调色剂层的厚度的同时将调色剂施加到显影辊。 平板弹簧具有多个平板部件，包括与显影辊接触的接触平板部分和将平板部件彼此连接的弯曲部分。 在这种结构中，通过任意选择板簧的尺寸参数，可以容易地获得具有不同特性的各种板簧。 因此，例如，对于调色剂的应力和对构件的应力可以与板簧的设计同时容易地减小。 此外，可以提高显影辊的轴向上的调色剂层厚度的均匀性和调色剂的充电均匀性。

公开(公告)号：US6154627A

公开(公告)日：2000-11-28

申请号：US256616

申请日：1999-02-23

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

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

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 which carries and conveys one-component toner in a manner of coming into contact with a photoconductor which bears an electrostatic latent image, is defined as Rd=.rho.d.multidot.(Dd1/S1), wherein S1 (cm.sup.2) is an area in which the developing roller comes into contact with the static image bearing member via a toner layer, Dd1 (cm) is a layer thickness of a semiconductive layer which composes the developing roller, and .rho.d (.OMEGA..multidot.cm) is a volume resistivity thereof. The range of the resistance Rd is set as 10.sup.4 5.times.10.sup.7. By using the developing roller 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： 本发明的目的是为了防止调色剂层的电击穿和过电流的发生，从而在显影时防止图像质量下降，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接触的方式携带并输送单组分调色剂的显影辊的电阻值Rd被定义为Rd = rho dx（Dd1 / S1），其中S1（cm2 ）是显影辊经由调色剂层与静电图像承载部件接触的区域，Dd1（cm）是构成显影辊的半导体层的层厚度，并且rhod（OMEGA xcm）为 体积电阻率。 电阻Rd的范围设定为104 5×107。 通过使用低电阻的显影辊，实现了优异的显影，并且可以通过调色剂层的电阻值避免电击穿和过电流。

公开(公告)号：US06064463A

公开(公告)日：2000-05-16

申请号：US204811

申请日：1998-12-03

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

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

IPC分类号： G03G15/08 ,  G03B27/32 ,  G03B27/52

CPC分类号： G03G15/0812

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

摘要翻译： 叶片被压靠在显影辊上，用于调节沉积在显影辊表面上的调色剂的量。 刀片在其尖端处形成有倾斜面，调色剂沿着显影辊的旋转方向传送到该表面。 由显影辊和倾斜面限定的调色剂入口部分处的孔的角度θ设定为12.5°或更大，倾斜角度在倾斜角度psi，弹性变形和半径（R） 显影辊和与刀片与显影辊接触的辊隙宽度w相关的角度α。 孔的这种角度对刀片的自由长度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：US5978635A

公开(公告)日：1999-11-02

申请号：US239122

申请日：1999-01-28

申请人： Nobuyuki Azuma ,  Tadashi Iwamatsu ,  Hiroshi Tatsumi ,  Atsushi Inoue ,  Masanori Yamada ,  Takayuki Yamanaka

发明人： Nobuyuki Azuma ,  Tadashi Iwamatsu ,  Hiroshi Tatsumi ,  Atsushi Inoue ,  Masanori Yamada ,  Takayuki Yamanaka

IPC分类号： G03G15/08

CPC分类号： G03G15/0815

摘要： An elastic member for pressing is provided in a prescribed location in an area where the developer carrier comes in contact with the discharging member, in order to bring the discharging member into contact with the developer carrier so that mechanical peeling of the residual developer on the developer carrier is not caused, and the discharging member is provided with a bias power supply for setting bias in a direction imparting to the discharging member a force for electrically drawing the residual developer on the developer carrier away from the developer carrier, and after thus reducing the electric adhesion of the residual developer to the developer carrier, the developer feed member removes the residual developer on the developer carrier in the vicinity of disjunction area or in the contact area of the developer carrier and the developer feed member, thereafter applies new developer in a developer container to the developer carrier in the vicinity of approaching area or in the contact-starting area of the developer carrier and the developer feed member.

摘要翻译： 用于按压的弹性构件设置在显影剂载体与排出构件接触的区域中的规定位置，以使排出构件与显影剂载体接触，从而使显影剂上的残余显影剂机械剥离 不会引起载体，并且放电构件设置有偏置电源，用于在施加到排出构件的方向上设置用于将显影剂载体上的残余显影剂电离拉离显影剂载体的力，并且在此之后减少 残余显影剂对显影剂载体的电粘附，显影剂供给构件在分离区附近或显影剂载体和显影剂进料构件的接触区域中除去显影剂载体上的残余显影剂，然后将新显影剂施加到 开发商容器到接近区域附近的开发商承运人 显影剂载体和显影剂进料构件的触觉起始区域。

公开(公告)号：US06330416B1

公开(公告)日：2001-12-11

申请号：US09323811

申请日：1999-06-02

申请人： Masanori Yamada ,  Tetsurou Toyoshima ,  Tadashi Iwamatsu ,  Nobuyuki Azuma

发明人： Masanori Yamada ,  Tetsurou Toyoshima ,  Tadashi Iwamatsu ,  Nobuyuki Azuma

IPC分类号： G03G1508

CPC分类号： G03G15/0812

摘要： A developing device and a blade of the developing device, includes a contact section which is in plane contact with a development roller, and an inclined section which extends from an end of the contact section so as to form a flare at an inflow section of a one-component developer between the blade and development roller. When a flare angle between the blade having the flare and a line tangent to the development roller is denoted by a tilt angle &thgr;, 30°≦&thgr;≦90°. Thus, if the flare angle at the inflow section of the one-component developer between the blade and development roller is optimized, even when the one-component developer deteriorates with time, for example, the flowability is changed with time, it is possible to provide a developing device and a blade of the developing device capable of forming a one-component developer layer with an extremely stable deposit of one-component developer. Moreover, it is possible to provide a blade which can increase the dimensional tolerance of the inclined section and can be produced easily at a low cost.

摘要翻译： 显影装置的显影装置和叶片包括与显影辊平面接触的接触部分和从接触部分的端部延伸以在其中的一个流体部分形成一个喇叭口的倾斜部分 叶片和显影辊之间的单组分显影剂。 当具有喇叭口的叶片和与显影辊相切的直线之间的喇叭角由倾斜角θ表示时，30°<θ= 90°。 因此，如果叶片和显影辊之间的单组分显影剂的流入部分处的扩口角度最优化，即使当单组分显影剂随时间劣化时，例如流动性随时间变化， 提供能够形成具有非常稳定的单组分显影剂沉积物的单组分显影剂层的显影装置和显影装置的叶片。 此外，可以提供能够提高倾斜部的尺寸公差的叶片，并且能够以低成本容易地制造。

公开(公告)号：US6064847A

公开(公告)日：2000-05-16

申请号：US328240

申请日：1999-06-08

申请人： Tadashi Iwamatsu ,  Nobuyuki Azuma

发明人： Tadashi Iwamatsu ,  Nobuyuki Azuma

IPC分类号： C23C16/02 ,  C23C16/14 ,  C23C16/34 ,  G03G9/08 ,  G03G13/08 ,  H01L21/28 ,  H01L21/285 ,  G03G15/08

CPC分类号： G03G13/08 ,  G03G9/0819

摘要： A developing device for developing an electrostatic latent image on a photoconductive member has a developing roller that bears a one-component developer on its surface and develops the electrostatic latent image by contacting the photoconductive member; a supply roller for supplying developer to the developing roller; and a blade that contacts the developing roller so as to regulate a layer thickness of the developer supplied by the supply roller, wherein supposing that the developer has a volume-average particle size represented by Dbk, the developer at this time being maintained on the developing roller as a layer that has been supplied by the supply roller and again formed so as to have a predetermined thickness by the blade after the developing roller, on which the developer was formed as a layer having a predetermined thickness, carried out a black-image developing process, and supposing that the volume-average particle size of the developer is Dwt, the developer at this time being maintained on the developing roller as a layer that has been supplied by the supply roller and again formed so as to have a predetermined thickness by the blade after the developing roller, on which the developer was formed as a layer having a predetermined thickness, carried out a white-image developing process, an inequality, Dwt/Dbk>0.8, is satisfied.

摘要翻译： 用于在感光体上显影静电潜像的显影装置具有在其表面上承载单组分显影剂的显影辊，并通过使感光体接触来显影静电潜像; 用于向显影辊供应显影剂的供应辊; 以及与显影辊接触以调节由供给辊供应的显影剂的层厚度的刀片，其中假设显影剂具有由Dbk表示的体积平均粒度，则此时的显影剂保持在显影剂 辊作为由供应辊提供并且在其上形成具有预定厚度的层的显影辊之后通过刮刀重新形成为具有预定厚度的层，执行黑色图像 显影过程，并且假设显影剂的体积平均粒径为Dwt，此时的显影剂作为由供给辊供应并再次形成为具有预定厚度的层保持在显影辊上 通过在显影辊上形成具有预定厚度的层的显影辊之后的刮刀进行白图像显影处理， 不等式，Dwt / Dbk> 0.8。

公开(公告)号：US6035171A

公开(公告)日：2000-03-07

申请号：US244582

申请日：1999-02-04

申请人： Toshihiko Takaya ,  Nobuyuki Azuma ,  Masanori Yamada ,  Atsushi Inoue ,  Keiji Yasuda ,  Takayuki Yamanaka ,  Tadashi Iwamatsu ,  Kazuhiro Matsuyama ,  Hiroshi Tatsumi ,  Katsumi Adachi ,  Yukihito Nishio

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

IPC分类号： G03G15/08

CPC分类号： G03G15/0815

摘要： The object of the invention is to certainly remove and certainly recover the charged toner remaining on a developing roller after development. A single component toner which is delivered to the developing roller via a toner-supplying roller is made into a relatively thin layer of a predetermined thickness with a charging plate and is frictionally charged with a given quantity of electric charge. Subsequently, the toner is adhered on a photoreceptor drum along by the electrostatic latent image to develop an image at the developing region at which the developing roller comes into contact with the photoreceptor drum. After development, the electric charge of the toner layer on the developing roller is removed with an electric-charge-removing sheet. The toner after development is recovered into a toner hopper via the toner-supplying roller. In rotation direction of the developing roller, the relation of the width Wt of the toner layer to the width Wc of the electric-charge-removing sheet is established so as to be Wc.gtoreq.Wt. Thus, the electric charge of the toner layer on the developing roller is certainly removed.

摘要翻译： 本发明的目的是确定地清除并显着回收显影后残留在显影辊上的带电调色剂。 通过调色剂供给辊输送到显影辊的单组分调色剂通过带电板被制成具有预定厚度的相对较薄的层，并以给定量的电荷摩擦。 随后，调色剂沿着静电潜像附着在感光鼓上，以在显影辊与感光鼓接触的显影区域显影。 显影后，用电荷去除片除去显影辊上的调色剂层的电荷。 显影后的调色剂通过调色剂供应辊回收到调色剂料斗中。 在显影辊的旋转方向上，确定调色剂层的宽度Wt与电荷去除片的宽度Wc之间的关系为Wc> = Wt。 因此，显影辊上的调色剂层的电荷肯定被去除。

公开(公告)号：US5176076A

公开(公告)日：1993-01-05

申请号：US650007

申请日：1991-02-04

申请人： Nobuyuki Azuma ,  Noriaki Mukai ,  Yasusuke Hayashi

发明人： Nobuyuki Azuma ,  Noriaki Mukai ,  Yasusuke Hayashi

IPC分类号： B41F15/08 ,  B41F15/40 ,  B41F15/44 ,  H05K3/12

CPC分类号： B41F15/0818 ,  B41F15/44 ,  H05K3/1233 ,  H05K2203/0139

摘要： A screen printer effects a printing by moving a squeegee in contact with a screen to force a printing paste through a printing pattern formed on the screen. The squeegee is held by a squeegee head. The squeegee head includes a support member for supporting the squeegee in such a manner as to move the squeegee upward and downward, and at least one moving member which swingably supports the support member and is movable together with the support member. When the squeegee is to be exchanged, only the support member is angularly movable relative to the moving member so as to provide a sufficient space above the screen to facilitate the exchange of the squeegee.

摘要翻译： 丝网印刷机通过移动与屏幕接触的刮板来实现印刷，以迫使印刷浆料通过形成在屏幕上的印刷图案。 刮刀由刮刀头固定。 刮板头包括用于以使得刮板向上和向下移动的方式支撑刮板的支撑构件，以及可移动地支撑支撑构件并且与支撑构件一起移动的至少一个移动构件。 当更换刮板时，只有支撑构件相对于移动构件成角度地移动，以便在屏幕上方提供足够的空间以便于刮板的更换。

公开(公告)号：US4853204A

公开(公告)日：1989-08-01

申请号：US133627

申请日：1987-12-16

申请人： Nobuyuki Azuma ,  Minoru Maeda ,  Kazuo Nakamura

发明人： Nobuyuki Azuma ,  Minoru Maeda ,  Kazuo Nakamura

IPC分类号： C04B35/584 ,  C04B41/53 ,  C04B41/91

CPC分类号： C04B41/009 ,  C04B35/584 ,  C04B41/5353 ,  C04B41/91

摘要： An oxidation-resistant silicon nitride material possessing a surface layer of a phase of closely packed crystals is produced by a procedure which comprises covering the surface of a silicon nitride substrate with a layer of an alkali metal compound, firing the coated substrate at a temperature of between 800.degree. C. and 1,300.degree. C., thereby forming an alkali metal-containing vitreous coating layer on the surface of the silicon nitride substrate, and thereafter removing the coating layer.

摘要翻译： 具有紧密堆积的晶体相表面层的抗氧化氮化硅材料是通过以下步骤制备的，该方法包括用一层碱金属化合物覆盖氮化硅衬底的表面，将涂覆的衬底在 在800℃至1300℃之间，从而在氮化硅衬底的表面上形成含碱金属的玻璃质涂层，然后除去涂层。

公开(公告)号：US4842840A

公开(公告)日：1989-06-27

申请号：US140995

申请日：1988-01-05

申请人： Nobuyuki Azuma ,  Kazuo Nakamura ,  Minoru Maeda ,  Mamoru Yamada

发明人： Nobuyuki Azuma ,  Kazuo Nakamura ,  Minoru Maeda ,  Mamoru Yamada

IPC分类号： C04B41/00 ,  C04B41/80

CPC分类号： C04B41/009 ,  C04B41/0072 ,  C04B41/80

摘要： An oxidation-resistant sialon material and an oxidation-resistant silicon carbide material each containing a phase of closely packed crystals in the surface region are produced by coating a sialon substrate and a silicon carbide substrate with a layer of an alkali metal compound and a layer of a mixture of an alkali metal compound and a carbonaceous substance respectively, firing the resultant coated substrate at a temperature in the range of 800.degree. to 1,300.degree. C. thereby forming an alkali metal-containing vitreous coating layer on each substrate, and thereafter removing the each coating layer.

摘要翻译： 通过涂覆具有碱金属化合物层的硅铝氧氮素衬底和碳化硅衬底来制备各自含有表面区域中具有紧密堆积晶体的相的抗氧化赛隆材料和抗氧化碳化硅材料， 分别加入碱金属化合物和碳质物质的混合物，在800〜1300℃的温度范围内烧成所得到的涂布基材，在每个基板上形成含碱金属的玻璃质涂层，然后除去 每个涂层。