公开(公告)号：US5899606A

公开(公告)日：1999-05-04

申请号：US942554

申请日：1997-10-01

申请人： Atsushi Tano ,  Kunihiko Sato ,  Toshihiro Yukawa ,  Hiroyuki Inoue

发明人： Atsushi Tano ,  Kunihiko Sato ,  Toshihiro Yukawa ,  Hiroyuki Inoue

IPC分类号： G03G15/10

CPC分类号： G03G15/104

摘要： A liquid developing head is arranged to confront a surface of an image bearing member via a developing gap and a squeeze gap and carries out a developing by use of a developing liquid. The liquid developing head includes a housing, a developing roller, supported by the housing, supplying the developing liquid to the developing gap by rotating so that a portion of the developing roller confronting the image bearing member moves in a direction which is the same as a moving direction of the surface of the image bearing member, a squeeze roller, supported by the housing and arranged on a downstream side of the developing roller in the moving direction of the surface of the image bearing member, removing a surplus developing liquid adhered on the surface of the image bearing member at the squeeze gap by rotating so that a portion of the squeeze roller confronting the image bearing member moves in a direction opposite to the moving direction of the surface of the image bearing member, a developing liquid supply path, formed within the housing and having an ejection hole located at a portion on an upstream side of the developing gap in the moving direction of the surface of the image bearing member, supplied with the developing liquid from outside, and a developing liquid recovery path, formed within the housing, forcibly recovering the surplus developing liquid in response to a suction force applied from the outside.

摘要翻译： 液体显影头被布置成经由显影间隙和挤压间隙面对图像承载部件的表面，并且通过使用显影液进行显影。 液体显影头包括壳体，由壳体支撑的显影辊，通过旋转将显影液供给到显影间隙，使得与图像承载部件相对的显影辊的一部分沿着与 图像承载部件的表面的移动方向，挤压辊，由壳体支撑并且沿着图像承载部件的表面的移动方向布置在显影辊的下游侧，去除附着在图像承载部件的表面上的多余的显影液体 通过旋转使图像承载部件处于挤压间隙的表面，使得面对图像承载部件的挤压辊的一部分沿与图像承载部件的表面的移动方向相反的方向移动，形成显影液供给路径 并且具有位于显影间隙的上游侧的表面的移动方向上的部分的喷射孔 从外部供给显影液的图像承载部件和形成在壳体内的显影液回收路径响应于从外部施加的吸力而强制回收多余的显影液。

公开(公告)号：US06463246B1

公开(公告)日：2002-10-08

申请号：US09531683

申请日：2000-03-20

申请人： Tsuneo Mizuno ,  Toshihiro Yukawa ,  Tomoaki Tanaka ,  Atsushi Tano ,  Tetsu Takahashi

发明人： Tsuneo Mizuno ,  Toshihiro Yukawa ,  Tomoaki Tanaka ,  Atsushi Tano ,  Tetsu Takahashi

IPC分类号： G03G1508

CPC分类号： G03G15/0812 ,  G03G9/0819 ,  G03G9/0823 ,  G03G13/08 ,  G03G2215/0614

摘要： It is an exemplified object of the present invention to provide a developer, a development device and its elements, and an image-forming device that can more stably form a high-quality image by a relatively inexpensive and easy means. A noncontact-type development method according to the present invention utilizes a nonmagnetic and single component toner having a volume average particle diameter D (&mgr;m) and an average specific charge q/m (&mgr;C/g), a development roller having a ten-point average surface roughness Rz (&mgr;m), and a blade keeping in contact with the development roller at a blade line pressure Pb (gf/cm). In order to stably form a uniform toner layer dt (&mgr;m) on the development roller, the following relationship is to be met: dt=1.8×{q/m×Rz/(Pb−1)}½×D±0.25 D, and 1.5 D≦dt≦3.5 D.

摘要翻译： 本发明的一个示例性目的是提供一种显影剂，显影装置及其元件，以及能够通过相对廉价且容易的手段更稳定地形成高质量图像的图像形成装置。 根据本发明的非接触式显影方法利用具有体积平均粒径D（mum）和平均比电容q / m（μC/ g）的非磁性和单组分调色剂，具有十点 平均表面粗糙度Rz（mum），以及以刀片线压力Pb（gf / cm）保持与显影辊接触的刀片。 为了在显影辊上稳定地形成均匀的调色剂层dt（mum），满足以下关系：dt = 1.8x {q / mxRz /（Pb-1）} 1/2xD±0.25D，1.5D < = dt <= 3.5 D.