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    • 2. 发明授权
    • Developing device using specific charging unit for charging toner and image forming device adopting the same
    • 显影装置使用特定的充电单元来对调色剂进行充电和采用其的成像装置
    • US07283775B2
    • 2007-10-16
    • US10536717
    • 2003-11-21
    • Taisuke KamimuraKiyoshi ToizumiToshimitsu Gotoh
    • Taisuke KamimuraKiyoshi ToizumiToshimitsu Gotoh
    • G03G15/08
    • G03G15/0887G03G15/0877G03G2215/0609
    • A developing device prevents deterioration of toner, i.e., prevent the toner from being damaged, or fused onto the blade, to realize a more reliable developing operation. In the developing device, an electron emitting section is provided onto the toner regulation blade in which apertures (151) are formed, wherein each of the apertures (151) is formed by electroforming to have an inner surface curved convexly to be widened outwardly to the side irradiated with an ultraviolet ray (shape A). Further, a photoelectric surface (152) is laminated on the surface of the electron emitting section with the apertures (151). With an application of ultraviolet ray onto the electron emitting section, the resulting photoelectrons as emitted from the photoelectric surface (152) are guided to the toner through the apertures (151). Here, for the aperture (151) of the shape A, a larger amount of electrons can be guided to the toner than the apertures in other shapes (B to E).
    • 显影装置防止调色剂的劣化,即防止调色剂损坏或熔合到刀片上,以实现更可靠的显影操作。 在显影装置中,电子发射部分设置在其上形成有孔(151)的调色剂调节片上,其中每个孔(151)通过电铸形成,以具有凸形弯曲的内表面,以向外扩大到 侧面用紫外线(形状A)照射。 此外,在电子发射部分的表面上用孔(151)层压光电表面(152)。 通过将紫外线施加到电子发射部分上,从光电表面(152)发射的所得光电子通过孔(151)被引导到调色剂。 这里,对于形状A的孔(151),与其他形状(B至E)的孔相比,可以将更多量的电子引导到调色剂。
    • 4. 发明授权
    • Fixing device in image forming device
    • 定影装置在成像装置中
    • US6011938A
    • 2000-01-04
    • US119109
    • 1998-07-20
    • Kiyoshi Toizumi
    • Kiyoshi Toizumi
    • G03G15/20
    • G03G15/205G03G15/2039G03G15/2046
    • To improve the fixing ability in the fixing device, and simultaneously prevent hot offset occurring during continuous fixing process. In the interior of a cored bar of a heat roll is mounted a heater lamp, and by controlling the power supplied to said heater lamp, heat roll is maintained at a first set temperature enabling heat fix. To this heater lamp is pressed a pressurization roll formed by covering a cover layer to a cored bar, which forms a fixing device. The heat roll is controlled and maintained at the first set temperature T.sub.1 at the initial fixing process, and when performing a continuous fixing process, it is switched and controlled to a second set temperature T.sub.2 lower than the first set temperature but enabling fixing. Thereby, the fixing ability could be maintained well, preventing hot offset.
    • 为了提高定影装置中的定影能力,同时防止在连续定影过程中发生热偏移。 在热辊的芯棒的内部安装有加热灯,并且通过控制提供给所述加热灯的功率,将热辊保持在第一设定温度,从而能够进行热固定。 向该加热灯按压通过将覆盖层覆盖到芯棒而形成的加压辊,该芯棒形成固定装置。 在初始定影处理时,热辊被控制并保持在第一设定温度T1,并且当进行连续定影处理时,将其切换并控制到低于第一设定温度但能够固定的第二设定温度T2。 因此,可以很好地保持定影能力,防止热偏移。
    • 5. 发明授权
    • Toner, two-component developer, developing device, and image forming apparatus
    • 调色剂,双组分显影剂,显影装置和图像形成装置
    • US08053155B2
    • 2011-11-08
    • US12170748
    • 2008-07-10
    • Satoru AriyoshiKiyoshi Toizumi
    • Satoru AriyoshiKiyoshi Toizumi
    • G03G9/00
    • G03G9/081G03G9/0815G03G9/0819G03G9/0821G03G9/0825G03G9/08795G03G9/08797
    • A toner has columnar particles manufactured through: a kneading step of melt-kneading toner raw materials including at least binder resin, colorant and a release agent to prepare a kneaded product; a spinning step of extruding the kneaded product from orifices disposed at the tip of a spinning nozzle to prepare a fibrous kneaded product; and a pulverizing step of cutting or pulverizing the fibrous kneaded product, the toner matrix particles each having an aspect ratio of 0.5 to 5.0 and a dB/d50 value of 0.5 or above and contain an external additive composed of large particles and small particles having a volume average particle size smaller than that of the large particles, as well as to provide each of the columnar particles with each having 10 or less reentrants whose apertures have a longer length in a minor axis thereof than a radius of the respective large particles.
    • 调色剂具有通过以下方式制造的柱状颗粒:将至少包含粘合剂树脂,着色剂和脱模剂的调色剂原料熔融捏合以制备捏合产物的捏合步骤; 从设置在纺丝喷嘴的前端的孔部挤出混炼物的纺丝工序,制作纤维状捏合物; 以及切割或粉碎纤维状混炼物的粉碎工序,每个长宽比为0.5〜5.0,dB / d50值为0.5以上的调色剂基质粒子,含有由大粒子构成的外部添加剂和具有 体积平均粒径小于大颗粒的体积平均粒径,以及提供每个具有10个或更少的凹口的每个柱状颗粒,其孔在其短轴上具有比各个大颗粒的半径更长的长度。