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    • 5. 发明授权
    • Image forming apparatus having heat-fixing unit
    • 具有热定影单元的图像形成装置
    • US07570895B2
    • 2009-08-04
    • US11677287
    • 2007-02-21
    • Atsutoshi AndoYuuichi ObaraHiroshi Sahara
    • Atsutoshi AndoYuuichi ObaraHiroshi Sahara
    • G03G15/20
    • G03G15/6573G03G15/2028G03G2215/00734G03G2215/00945
    • An image forming apparatus includes an image forming portion; a fixing portion having a fixing nip portion which heats and fixes the unfixed image and an discharge roller which discharges the recording material, wherein in the case where the recording material is the plain paper which is equal to or larger than the predetermined size, the discharge roller conveys the plain paper in a range from a front edge to a rear edge at a predetermined speed, in the case where the recording material is the plain paper smaller than the predetermined size, the discharge roller conveys the plain paper at a first speed until the rear edge passes through the fixing nip portion, and the discharge roller conveys the plain paper at a second speed higher than the first speed after the rear edge passed through the fixing nip portion.
    • 图像形成装置包括图像形成部分; 固定部分具有加热和固定未定影图像的定影夹持部分和排出记录材料的排纸辊,其中在记录材料是普通纸等于或大于预定尺寸的情况下,排出 在预定速度下,从前边缘到后边缘的范围内传送普通纸,在记录材料是比预定尺寸小的普通纸的情况下,排纸辊以第一速度传送普通纸直到 后边缘通过定影夹持部分,并且排出辊在后边缘通过定影夹持部分之后以比第一速度高的第二速度传送普通纸。
    • 6. 发明授权
    • Image forming apparatus and process cartridge
    • 成像设备和处理盒
    • US06175703B1
    • 2001-01-16
    • US09425734
    • 1999-10-22
    • Yusuke NakazonoJunichi KatoKoichi SuwaSatoru InamiMasahiro YoshidaAtsutoshi AndoSatoshi SunaharaSeiichi Shinohara
    • Yusuke NakazonoJunichi KatoKoichi SuwaSatoru InamiMasahiro YoshidaAtsutoshi AndoSatoshi SunaharaSeiichi Shinohara
    • G03G2116
    • G03G9/0819G03G9/09708G03G9/09716G03G9/09725G03G9/09733G03G13/09G03G13/22G03G2215/021G03G2221/183
    • An image forming apparatus having at least: an image carrying member for carrying an electrostatic latent image, the image carrying member having a photosensitive layer on a conductive substrate; a developer for developing the electrostatic latent image carrying member on the image carrying member; a developer carrying member for carrying the developer and conveying it to a development area; a control member making contact with the developer carrying member for controlling the coating amount of the developer; and a cleaning member for cleaning the surface of the photosensitive layer of the image carrying member by making contact with the surface of the image carrying member with a contact pressure of 0.15N (15 gf) to 0.89N (90 gf). The photosensitive layer contains at least one kind of polycarbonate resin (I) having a viscosity average molecular weight of 1.5×104 or less and at least one kind of polycarbonate resin (II) having a viscosity average molecular weight of more than 1.5×104, the polycarbonate resin (I) is contained in 30% by mass to 95% by mass based on the total content of the resins (I) and (II). The developer has a toner containing toner particles and external additives, and the toner contains (a) 0.1% by mass to 5.0% by mass of a first fine powder with a number average particle size of 0.005 &mgr;m to 3.00 &mgr;m, and (b) 0.02% by mass to 2.00% by mass of an inorganic second fine powder containing 25% by mass to 90% by mass of a lubricant, as external additives.
    • 一种图像形成装置,至少具有:用于承载静电潜像的图像承载部件,所述图像承载部件在导电基板上具有感光层; 用于在图像承载构件上显影静电潜像承载构件的显影剂; 用于承载显影剂并将其传送到显影区域的显影剂承载构件; 控制构件与显影剂承载构件接触以控制显影剂的涂布量; 以及清洁部件,通过以0.15N(15gf)至0.89N(90gf)的接触压力与图像承载部件的表面接触来清洁图像承载部件的感光层的表面。 感光层含有至少一种粘均分子量为1.5×10 4以下的聚碳酸酯树脂(I)和至少一种粘均分子量大于1.5×10 4的聚碳酸酯树脂(II),聚碳酸酯 相对于树脂(I)和(II)的总含量,树脂(I)的含量为30质量%〜95质量%。 显影剂具有含有调色剂颗粒和外部添加剂的调色剂,并且调色剂含有(a)数均粒径为0.005μm至3.00μm的第一细粉末的0.1质量%至5.0质量%,和(b) 作为外部添加剂,含有25质量%〜90质量%的润滑剂的无机第二细粉的0.02质量%〜2.00质量%。
    • 7. 发明授权
    • Image forming apparatus detecting useful life of an image bearing member
    • 检测图像承载部件的使用寿命的图像形成装置
    • US5805951A
    • 1998-09-08
    • US590438
    • 1996-01-23
    • Junichi KatoSatoru InamiJun SuzukiAtsutoshi Ando
    • Junichi KatoSatoru InamiJun SuzukiAtsutoshi Ando
    • G03G15/00G03G15/02G03G21/00
    • G03G15/55G03G15/75G03G2215/021G03G2221/183
    • An image forming apparatus for detecting the useful life of an image bearing member includes an image bearing member; a charging member contactable to the image bearing member for charging the image bearing member, the charging member being supplied with a voltage. The image forming apparatus also includes a discharging member for electrically discharging the image bearing member, the discharging member discharging a first region of the image bearing member and a second region of the image bearing member, different from the first region in a direction of a generating line of the image bearing member; and a detecting device for detecting a current flowing through the charging member when the charging member is supplied with a predetermined voltage and charges the first region having been discharged by the discharging member and when the charging member also charges the second region having been discharged by the discharging member.
    • 用于检测图像承载部件的使用寿命的图像形成装置包括图像承载部件; 所述充电构件可与所述图像承载构件接触,以对所述图像承载构件充电,所述充电构件被供应电压。 图像形成装置还包括用于对图像承载部件进行电放电的放电部件,排出部件排出图像承载部件的第一区域和图像承载部件的第二区域,该第二区域与产生的方向上的第一区域不同 图像承载部件的线; 以及检测装置,用于当充电构件被提供预定电压时检测流过充电构件的电流,并且对由放电构件排出的第一区域进行充电,并且当充电构件还对由第二区域排出的第二区域充电时, 排出构件。
    • 8. 发明授权
    • Image forming apparatus having heat-fixing unit
    • 具有热定影单元的图像形成装置
    • US07792448B2
    • 2010-09-07
    • US12488018
    • 2009-06-19
    • Atsutoshi AndoYuuichi ObaraHiroshi Sahara
    • Atsutoshi AndoYuuichi ObaraHiroshi Sahara
    • G03G15/20
    • G03G15/6573G03G15/2028G03G2215/00734G03G2215/00945
    • An image forming apparatus includes an image forming portion. The image forming apparatus further includes a fixing portion having a fixing nip portion that heats and fixes the unfixed image and an discharge roller that discharges the recording material. In the case where the recording material is a plain paper that is equal to or larger than a predetermined size, the discharge roller conveys the plain paper in a range from a front edge to a rear edge at a predetermined speed. In the case where the recording material is a plain paper smaller than the predetermined size, the discharge roller conveys the plain paper at a first speed until the rear edge passes through the fixing nip portion, and the discharge roller conveys the plain paper at a second speed higher than the first speed after the rear edge has passed through the fixing nip portion.
    • 图像形成装置包括图像形成部。 图像形成装置还包括具有加热和固定未定影图像的定影夹持部分的固定部分和排出记录材料的排出辊。 在记录材料是等于或大于预定尺寸的普通纸的情况下,排纸辊以预定速度从前边缘到后边缘的范围内传送普通纸。 在记录材料是小于预定尺寸的普通纸的情况下,排纸辊以第一速度传送普通纸,直到后边缘通过定影夹持部分,并且排出辊将普通纸传送到第二个 在后边缘已经通过定影夹持部分之后高于第一速度的速度。