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    • 2. 发明专利
    • 画像形成装置
    • 图像形成装置
    • JP2015011046A
    • 2015-01-19
    • JP2013133716
    • 2013-06-26
    • 富士ゼロックス株式会社Fuji Xerox Co Ltd
    • TAKAHASHI SAKONKIUCHI YUTAKAKURITA ATSUMIHIGASHIMURA MASAYOSATO KUNIHIKOYAMADA KOSUKEARAI KAZUHIKO
    • G03G21/00B65H5/00G03G15/16
    • 【課題】記録媒体の抵抗が普通紙と異なることに起因した画質低下の発生を抑制することが可能な画像形成装置を提供する。【解決手段】この画像形成装置1は、銀箔フィルムやフィルムラベル等のように普通紙と抵抗が異なる記録媒体5に画像を形成する。銀箔フィルムは、その表面抵抗が105〜107&OHgr;程度と普通紙の表面抵抗108〜1012&OHgr;程度と比較して大幅に低く、フィルムラベルは、その表面抵抗が1010&OHgr;〜1015&OHgr;程度と普通紙の表面抵抗108〜1012&OHgr;程度と比較して大幅に高い値を有している。記録媒体5の抵抗は、検知手段により直接検出する場合や記録媒体5の種類を判別することにより取得される。制御部は、記録媒体5の抵抗に応じて、記録媒体5に接触する除電ブラシ85,86と接地電位との間に介在する抵抗を制御することにより、画質低下の発生を抑制する。【選択図】図1
    • 要解决的问题:提供一种图像形成装置,该图像形成装置被配置为在记录介质的电阻与普通纸不同时防止图像质量劣化。解决方案:图像形成装置1在记录介质5上形成图像, 例如银箔膜或薄膜标签,与普通纸不同。 银箔膜的表面电阻约为10-10&OHgr,显着低于表面电阻约为10-10&OHgr的普通纸。 该膜标签的表面电阻约为10〜OHgr -10〜OHgr,明显高于表面电阻约为10〜10Ω的普通纸。 记录介质5的电阻直接通过检测装置或通过确定记录介质5的类型获得。控制单元通过控制接地电位与与记录介质5接触的排出刷85,86之间的电阻来防止图像质量劣化 ,根据记录介质5的电阻。
    • 3. 发明专利
    • Developer for electrostatic charge development, and image forming apparatus
    • 静电充电开发的开发者和图像形成装置
    • JP2014139665A
    • 2014-07-31
    • JP2013262318
    • 2013-12-19
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • TAKAHASHI SAKONIIZUKA AKIHIROSAKAI MOTOKOSATO KUNIHIKOARAI KAZUHIKOFURUYA NOBUMASATAKAHASHI MASAAKIHARUYAMA DAISUKENISHIMURA KOJI
    • G03G9/08G03G5/147G03G15/08
    • G03G15/08G03G9/0815G03G9/09725G03G15/0813G03G2215/0838
    • PROBLEM TO BE SOLVED: To provide a developer for electrostatic charge development capable of suppressing an external additive of toner from being attached to an image holding body, and an image forming apparatus.SOLUTION: A developer for electrostatic charge image development is used in an image forming apparatus including an electrophotographic photoreceptor 10 that includes an outermost surface layer having fluororesin particles dispersed therein and holds an electrostatic latent image, and a developing roll 42 that is arranged to face the electrophotographic photoreceptor 10 and holds a developer including toner. Even when the developing roll 42 is set to improve developability, and an external additive having a large volume average particle diameter of 80 nm or more and 400 nm or less is used as an external additive externally added to toner particles to improve transferability, the external additive is formed into an irregular shape having the average circularity of 0.7 or more and 0.85 or less, so that the electrophotographic photoreceptor 10 including the outermost surface layer having fluororesin dispersed therein and the external additive are frictionally charged in a reverse polarity to each other, thereby suppressing adhesion of the external additive.
    • 要解决的问题:提供能够抑制调色剂的外部添加剂附着到图像保持体的静电电荷显影剂的显影剂和图像形成装置。解决方案:静电荷图像显影用显影剂用于图像 包括电子照相感光体10的成像装置,该电子照相感光体10包括其中分散有氟树脂颗粒的最外表面层并保持静电潜像;以及显影辊42,其布置成面对电子照相感光体10并保持含有调色剂的显影剂。 即使显影辊42被设定为提高显影性,并且使用体积平均粒径大于80nm以上且400nm以下的外用添加剂作为外部添加到调色剂颗粒中以提高转印性,外部 添加剂形成为平均圆形度为0.7以上且0.85以下的不规则形状,使得包含其中分散有氟树脂的最外表面层的电子照相感光体10和外部添加剂以相反的极性相互摩擦地充电, 从而抑制外部添加剂的粘附。
    • 4. 发明专利
    • Developing apparatus and image forming apparatus
    • 开发设备和图像形成设备
    • JP2014102341A
    • 2014-06-05
    • JP2012253506
    • 2012-11-19
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • SATO KUNIHIKOMIYAMOTO YOKOMASHITA YOSHIYATAKAHASHI MASAAKITAKAHASHI SAKONFURUYA NOBUMASAARAI KAZUHIKO
    • G03G15/08G03G15/09
    • G03G15/0921
    • PROBLEM TO BE SOLVED: To provide a developing apparatus configured to secure the amount of external additive adhered to toner in a transfer position, and to provide an image forming apparatus.SOLUTION: The developing apparatus includes: a first developing roll 141 arranged to face a photoreceptor drum 11, holding developer on a surface, and rotating in a direction opposite to a moving direction of the photoreceptor drum 11 in a portion facing the photoreceptor drum 11; and a second developing roll 142 arranged downstream of the first developing roll 141 along a moving direction of the photoreceptor drum 11 to face the photoreceptor drum 11, holding the developer on a surface, and rotating in the same direction as the moving direction of the photoreceptor drum 11 in a portion facing the photoreceptor drum 11. A value obtained by dividing the amount of developer per unit area, which is held on the first developing roll 141, by a minimum distance between the photoreceptor drum 11 and the first developing roll 141 is set to 1.00(10kg/m) or more and 1.60(10kg/m) or less.
    • 要解决的问题:提供一种构造成确保在转印位置附着到调色剂上的外部添加剂的量并且提供图像形成装置的显影装置。解决方案:显影装置包括:第一显影辊141,其被布置成面对 感光鼓11,将显影剂保持在表面上,并且在与感光鼓11相对的部分中与感光鼓11的移动方向相反的方向旋转; 以及第二显影辊142,其沿着感光鼓11的移动方向布置在第一显影辊141的下游,以面对感光鼓11,将显影剂保持在表面上,并沿与感光体的移动方向相同的方向旋转 鼓11在面对感光鼓11的部分中。通过将保持在第一显影辊141上的每单位面积的显影剂量除以感光鼓11和第一显影辊141之间的最小距离而获得的值是 设定为1.00(10kg / m)以上且1.60(10kg / m)以下。
    • 5. 发明专利
    • Development device, and image formation apparatus using the same
    • 开发装置和使用该图像的图像形成装置
    • JP2013171166A
    • 2013-09-02
    • JP2012034924
    • 2012-02-21
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • SATO KUNIHIKO
    • G03G15/08
    • PROBLEM TO BE SOLVED: To provide a development device which levels a surface of a developer, obtained after performing distribution thereof to two developer holding bodies, for a long period of time, and effectively prevents image contamination caused by adherence of the developer to a leveling operation member for the developer.SOLUTION: A development device includes: a first developer holding body 2 and a second developer holding body 3 which are disposed opposing to an image holding body 1 and rotate in the same direction at their mutually facing portions; developer supply means 4 for collectively supplying a developer G to the mutually facing portions between the two developer holding bodies 2 and 3; distribution means 5 for distributing the developer, supplied by the developer supply means 4, to the developer holding bodies 2 and 3; and leveling means 6 for leveling the surface of the developer G conveyed after the distribution by the distributing means 5. In the development device, the leveling means 6 includes: a rotatably-supported roll-shaped rotational body 7; and a rotational force applying part 8 for applying a rotational force to the roll-shaped rotational body 7 by bringing the developer G into contact with the roll-shaped rotational body 7 to thereby make a difference in a pressing force applied in a circumferential direction of the roll-shaped rotational body 7 by the contact between the developer G and the roll-shaped rotational body 7.
    • 要解决的问题:提供一种显影装置,其将经过长时间分配到两个显影剂保持体之后获得的显影剂的表面进行水平化,并且有效地防止由显影剂的粘附引起的图像污染到流平 用于显影剂的操作构件。解决方案:显影装置包括:第一显影剂保持体2和第二显影剂保持体3,其设置成与图像保持体1相对并在相互相对的部分沿相同方向旋转; 显影剂供给装置4,用于将显影剂G共同供给到两个显影剂保持体2和3之间的相互对置的部分; 用于将由显影剂供应装置4供应的显影剂分配到显影剂保持体2和3的分配装置5; 以及调平装置6,用于使由分配装置5分配之后传送的显影剂G的表面平整。在显影装置中,调平装置6包括:可旋转地支撑的辊状旋转体7; 以及用于通过使显影剂G与辊状旋转体7接触而向辊状旋转体7施加旋转力的旋转力施加部8,从而使沿着圆周方向施加的压力的差异 辊状旋转体7通过显影剂G和辊状旋转体7之间的接触。
    • 6. 发明专利
    • Development device and image forming apparatus
    • 开发设备和图像形成装置
    • JP2012159741A
    • 2012-08-23
    • JP2011020080
    • 2011-02-01
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • HIROKAWA KAZUHIKOSATO KUNIHIKO
    • G03G15/08
    • G03G15/0815G03G2215/0811G03G2215/0822G03G2215/0838
    • PROBLEM TO BE SOLVED: To reduce unevenness of amount of developer supplied to an image carrier in a direction along the rotational axis of a developer carrier.SOLUTION: A guide member 400 is provided with a plurality of plate-like members 410. Each plate-like member 410 is provided with a guide surface 420 for guiding developer when the developer collides with it. The plate-like members 410 are arranged in a first conveyance direction A8 in which the developer is conveyed, and each of them has an inclination from the vertical direction in such a manner that its vertically lower edge is located downstream of its vertically upper edge in the first conveyance direction A8. These inclinations are made bigger for the plate-like members 410 that are located towards the upstream side in the first conveyance direction A8. The plate-like members 410 are provided in such positions that the guide surfaces 420 collide with the moving developer. The guide surfaces 420 apply force to the colliding developer in the downstream direction to guide the developer downstream.
    • 要解决的问题:减少沿着显影剂载体的旋转轴线的方向供给到图像载体的显影剂的不均匀性。 导向构件400设置有多个板状构件410.每个板状构件410设置有引导表面420,用于当显影剂与其碰撞时引导显影剂。 板状构件410布置在其中输送显影剂的第一输送方向A8上,并且它们各自具有垂直方向的倾斜,使得其垂直下边缘位于其垂直上边缘的下游 第一输送方向A8。 对于朝向第一传送方向A8的上游侧的板状构件410,这些倾斜度变大。 板状构件410设置在引导面420与移动显影剂碰撞的位置。 引导表面420在下游方向上向碰撞显影剂施加力以将显影剂引导到下游。 版权所有(C)2012,JPO&INPIT
    • 7. 发明专利
    • Flash fixing device and image forming apparatus using the same
    • 闪光固定装置和使用其的图像形成装置
    • JP2009092793A
    • 2009-04-30
    • JP2007261603
    • 2007-10-05
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • MORI MITSUHIROSATO KUNIHIKOIWAISHI AKIRAOSAME HIROSHI
    • G03G15/20
    • PROBLEM TO BE SOLVED: To provide a flash fixing device capable of evenly irradiating an image area of a recording medium with flash light with uniform energy distribution, and an image forming apparatus using the same.
      SOLUTION: The flash fixing device includes a reflector 23 whose side opposed to the recording medium is made open and with which the back side of a flash lamp 21 is covered, and an end mirror 25 which is stuck near a position where it is opposed to both ends in an axial direction of the flash lamp 21, and whose reflection surface is provided to be inclined so that both end sides may approach to the recording medium 2 further than the center part side in the axial line of the flash lamp 21. The reflection surface of the end mirror 25 is arranged to provide an angle θ to a direction perpendicular to a center line 27e set in the axial direction of the flash lamp so as to turn to the side from the center line 27e near the center line 27e. Furthermore, an intermediate part mirror 26 having a predetermined angle may be arranged closer to the center side than a position where the end mirror 25 is arranged near the end of the flash lamp 21.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够以均匀的能量分布均匀地照射具有闪光的记录介质的图像区域的闪光定影装置,以及使用该闪光固定装置的图像形成装置。 解决方案:闪光固定装置包括反射器23,其与记录介质相对的一侧打开并且闪光灯21的背面被覆盖,以及端镜25,其贴在其上的位置 与闪光灯21的轴向的两端相对,并且其反射面设置成倾斜,使得两个端侧可以比闪光灯的轴线中的中心部分更靠近记录介质2 端镜25的反射面被配置成在与闪光灯的轴向设定的中心线27e垂直的方向上设置角度θ,以便从靠近中心的中心线27e侧向 27e线 此外,具有预定角度的中间部分反射镜26可以比靠近闪光灯21的端部处配置端镜25的位置更靠近中心侧布置。(C)2009年,JPO&INPIT
    • 8. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2006091538A
    • 2006-04-06
    • JP2004278036
    • 2004-09-24
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • HINO TOSHIOSATO KUNIHIKOKATSUKAWA MASAHITO
    • G03G15/00G03G15/08
    • PROBLEM TO BE SOLVED: To obtain an image forming apparatus capable of consuming toner during printing of continuous paper. SOLUTION: Dot patterns are printed in both end parts 76A of the continuous paper P to allow the toner to be consumed during printing. Therefore, the reduction of work efficiency due to toner consumption doesn't occur. Since patterns are printed in cut parts of the continuous paper P, namely, both end parts 76A of the carrier continuous paper P to consume the toner, the toner is not stuck to a carrying means like a carrying roller for carrying the continuous paper P, so that the problem that the toner stuck to the carrying means is released from the carrying means and is scattered to make a printer inside dirty will not occur. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:获得能够在打印连续纸期间消耗调色剂的图像形成装置。

      解决方案:连续纸张P的两个端部部分76A印有点图案,以便在打印期间消耗调色剂。 因此,不会发生由于调色剂消耗而导致的工作效率的降低。 由于图案印刷在连续纸P的切割部分即承载连续纸P的两个端部部分76A上以消耗调色剂,所以调色剂不会粘附到诸如用于承载连续纸P的承载辊的承载装置上, 使得粘附到携带装置上的调色剂的问题从携带装置释放并且被散射以使打印机内部不会发生脏污。 版权所有(C)2006,JPO&NCIPI

    • 9. 发明专利
    • Flash fixing apparatus and image forming apparatus using the same
    • 闪光固定装置和使用其的图像形成装置
    • JP2006091188A
    • 2006-04-06
    • JP2004274209
    • 2004-09-21
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • IWAISHI AKIRAMORI MITSUHIROSATO KUNIHIKO
    • G03G15/20
    • PROBLEM TO BE SOLVED: To accurately detect the light quantity of a flash lamp.
      SOLUTION: A cover 53 covering the outer periphery of a temperature sensor 48 is irradiated with flash light R emitted from the flash lamp. When the cover 53 absorbs the flash light R emitted from the lamp, the light energy of the flash light R is converted to heat, then, the radiant heat is emitted from the inside of the cover 53 to the detection surface 50 of the temperature sensor 48. And the temperature of the radiant heat of the cover is detected by the detection surface 50, that is, the light quantity of the flash light is indirectly detected. In the case of directly detecting the temperature by the detection surface 50, an error occurs in accordance with the angle of the detection surface 50, and in this invention, the temperature is detected through the cover 53, and the light quantity of the flash lamp is accurately detected.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:准确地检测闪光灯的光量。 解决方案:覆盖温度传感器48的外周的盖53被从闪光灯发射的闪光灯R照射。 当盖53吸收从灯发出的闪光灯R时,将闪光灯R的光能转换成热量,然后将辐射热从盖53的内部发射到温度传感器的检测表面50 并且,由检测面50检测出罩的辐射热的温度,即间接检测闪光的光量。 在通过检测面50直接检测温度的情况下,根据检测面50的角度发生误差,在本发明中,通过盖53检测温度,并且闪光灯的光量 准确检测。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Flash fixing apparatus and image forming apparatus using the same
    • 闪光固定装置和使用其的图像形成装置
    • JP2006091187A
    • 2006-04-06
    • JP2004274208
    • 2004-09-21
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • IWAISHI AKIRANANBA HIDEYUKISATO KUNIHIKO
    • G03G15/20
    • PROBLEM TO BE SOLVED: To prevent the glitch of a component which is easily affected by light energy, and also, to fix a toner image on a recording medium with the component which is easily affected by the light energy.
      SOLUTION: In the case the component such as electronic component 62 easily affected by the light energy is arranged on the recording medium 32, a light shielding part 52 is selectively arranged in a part of a transmission plate 41 for transmitting flash light with which the electronic component 62 is irradiated. Thus, the light energy of the flash light with which the electronic component 62 is irradiated is suppressed, then, the glitch of the electronic component 62 is prevented. Besides, the flash light passes through the part with no light shielding part 52 of the transmission plate 41, then, the toner image transferred on the recording medium 32 can be fixed.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了防止容易受光能影响的部件的毛刺,并且还可以将容易受光能影响的部件的调色剂图像固定在记录介质上。 解决方案:在容易受光能影响的诸如电子部件62的部件布置在记录介质32上的情况下,遮光部52选择性地布置在传输板41的一部分中,用于将闪光与 电子部件62被照射。 因此,抑制了电子部件62照射的闪光的光能,防止了电子部件62的毛刺。 此外,闪光灯穿过透射板41的没有遮光部分52的部分,然后可以固定在记录介质32上传送的调色剂图像。 版权所有(C)2006,JPO&NCIPI