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    • 31. 发明授权
    • Image forming apparatus, image forming method, and process cartridge
    • 图像形成装置,图像形成方法和处理盒
    • US07729634B2
    • 2010-06-01
    • US12043407
    • 2008-03-06
    • Hideo NakamoriMasanobu GondohShinji Nohsho
    • Hideo NakamoriMasanobu GondohShinji Nohsho
    • G03G21/20
    • G03G21/206G03G2215/00957G03G2221/183
    • An image forming apparatus and a process cartridge have high-durability and stably form high quality images under long-term use without reducing image density even when concentration of discharge products at the surface of an electrophotographic photoconductor becomes uneven in a discharge region of a charging unit. The apparatus employs an image forming method and has a corona discharge type charging unit discharging in a non-contact manner, the photoconductor placed to face the charging unit and the outermost surface layer thereof contains a filler and an amine compound with a specific structure, and an airflow adjusting device which carries air taken from the outside of the apparatus to the vicinity of the charging unit or the photoconductor so that ozone concentration and unevenness thereof are maintained at an average of 30 ppm or less and 15 ppm or less respectively at the surface of the photoconductor in the discharge region.
    • 图像形成装置和处理盒具有高耐久性,并且即使在电子照相感光体的表面上的放电产物的浓度在充电单元的放电区域中变得不均匀的情况下也可长期使用而稳定地形成高质量的图像而不降低图像浓度 。 该装置采用图像形成方法,并且具有以非接触方式放电的电晕放电型充电单元,放置成面对充电单元的光电导体及其最外表面层包含具有特定结构的填料和胺化合物,以及 气流调节装置,其将从装置外部取出的空气携带到充电单元或感光体附近,使得臭氧浓度和不均匀性在表面上分别保持在30ppm以下且15ppm以下 的放电区域中的感光体。
    • 32. 发明授权
    • Electrophotographic image forming apparatus, process cartridge and image forming method wherein lubricant is supplied to a surface of an image bearing member
    • 电子照相图像形成装置,处理盒和图像形成方法,其中将润滑剂供应到图像承载部件的表面
    • US07486914B2
    • 2009-02-03
    • US11444198
    • 2006-05-30
    • Toshiyuki KabataKeisuke ShimoyamaHideo NakamoriShinji Nousho
    • Toshiyuki KabataKeisuke ShimoyamaHideo NakamoriShinji Nousho
    • G03G15/00
    • G03G21/007
    • An image forming apparatus including an image bearing member having a surface free energy of not less than 45 mN/m, a charging device for charging the image bearing member, an irradiating device for irradiating the image bearing member with light to form a latent electrostatic image thereon, a developing device for developing the latent electrostatic image with a toner optionally containing a lubricant, a transfer device for transferring the developed image to a transfer medium, a cleaning device for cleaning the surface of the image bearing member, and optionally a lubricant supplying device for supplying a lubricant to the surface of the image bearing member. A lubricant is supplied to the surface of the image bearing member by at least one of the toner and the lubricant supplying device so that the surface free energy on average in an image formation area on the image bearing member is not greater than 32 mN/m while the maximum difference of the surface free energy is not greater than 5 mN/m.
    • 一种图像形成装置,包括具有不小于45mN / m的表面自由能的图像承载部件,用于对图像承载部件充电的充电装置,用于用光照射图像承载部件以形成静电潜像的照射装置 一种显影装置,其用任选地含有润滑剂的调色剂显影静电潜像,用于将显影图像转印到转印介质的转印装置,用于清洁图像承载部件的表面的清洁装置,以及可选的润滑剂供应 用于向图像承载部件的表面供给润滑剂的装置。 通过调色剂和润滑剂供给装置中的至少一个向图像承载部件的表面供给润滑剂,使得图像承载部件上的图像形成区域中的平均自由能平均不大于32mN / m 而表面自由能的最大差异不大于5mN / m。
    • 33. 发明申请
    • IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
    • 图像形成装置,图像形成方法和处理盒
    • US20080113285A1
    • 2008-05-15
    • US11873876
    • 2007-10-17
    • Hideo NakamoriAkihiro SuginoMasanobu GondohShinji Nohsho
    • Hideo NakamoriAkihiro SuginoMasanobu GondohShinji Nohsho
    • G03G13/04G03G15/00
    • G03G5/14708G03G5/0614G03G5/14704G03G15/751G03G21/08
    • The present invention provides an image forming apparatus that has high-durability and can prevent image degradation that could be caused by an increase in residual potential on a photoconductor, occurrence of image blur and incidental images and can stably form a high-quality image even when repetitively used for long hours, and includes at least an electrophotographic photoconductor, a non-contact type corona discharge charging unit, an exposing unit, a developing unit, a transfer unit and a charge eliminating unit configured to eliminate a residual charge on the photoconductor by irradiating the electrophotographic photoconductor with light, wherein the outermost surface layer of the electrophotographic photoconductor contains at least a filler and an is amine compound having a specific structure, and the exposure dose of the charge eliminating unit is controlled at at least two stages during a time from the start of image forming operation to the end of the image forming operation.
    • 本发明提供一种图像形成装置,其具有高耐久性并且可以防止由于感光体上的残留电位的增加,图像模糊和附带图像的发生而引起的图像劣化,并且即使当 重复使用长时间,并且至少包括电子照相感光体,非接触型电晕放电充电单元,曝光单元,显影单元,转印单元和电荷消除单元,其被配置为通过以下步骤来消除光电导体上的残留电荷: 用光照射电子照相感光体,其中电子照相感光体的最外表面层至少含有填料,并且是具有特定结构的胺化合物,并且电荷消除单元的曝光剂量在一段时间内被控制在至少两个阶段 从图像形成操作开始到图像形成操作的结束。
    • 38. 发明授权
    • Image forming apparatus, image forming method and process cartridge involving the use of a cleaning blade that removes toner remaining on a surface of an image bearing member
    • 图像形成装置,图像形成方法和处理盒,其涉及使用去除在图像承载部件的表面上残留的调色剂的清洁刮板
    • US07995950B2
    • 2011-08-09
    • US12817710
    • 2010-06-17
    • Hideo Nakamori
    • Hideo Nakamori
    • G03G15/00
    • G03G21/0011G03G5/0539G03G5/142G03G5/144G03G5/14704G03G5/14708G03G5/14726G03G21/0035G03G21/105G03G2215/0119G03G2215/0129
    • An image forming apparatus including an image bearing member having a static friction coefficient of from 0.1 to 0.3, a latent electrostatic image forming device, a developing device, and a cleaning device including a cleaning blade to remove remaining toner, in which the contact pressure of the cleaning blade to the image bearing member ranges from 1.5 to 10 g/cm, and the image bearing member and the cleaning blade satisfy the following relationships (1) and (2): 0.01 (kg)≦(Toff−T0)/r≦0.15 (kg)   Relationship (1) 1.2≦(Ton−T0)/(Toff−T0)≦3.8,   Relationship (2) wherein T0 (kgcm) represents the rotation torque of the image bearing member when the cleaning blade is not in contact therewith, Toff, the rotation torque when the cleaning blade contacts the image bearing member and the toner is not thereon, Ton, the rotation torque when the cleaning blade contacts the image bearing member and the toner is thereon for development, and r represents the radius of the image bearing member.
    • 一种图像形成装置,包括具有0.1至0.3的静摩擦系数的图像承载部件,静电潜像形成装置,显影装置和包括清洁刮板以除去残留调色剂的清洁装置,其中, 图像承载部件和清洁刮板满足以下关系式(1)和(2):0.01(kg)≦̸(Toff-T0)/ (kg)关系(1)1.2≦̸(Ton-T0)/(Toff-T0)≦̸ 3.8,关系式(2)其中T0(kgcm)表示当清洁刮板 不与其接触的Toff,当清洁刮板接触图像承载部件并且调色剂不在其上时的转矩Ton是当清洁刮板接触图像承载部件并且调色剂在其上显影时的旋转转矩,以及 r表示的半径 图像承载部件。