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    • 4. 发明授权
    • Image forming apparatus having a voltage change determiner
    • 具有电压变化确定器的图像形成装置
    • US08027604B2
    • 2011-09-27
    • US12169666
    • 2008-07-09
    • Koichi Matsuzaki
    • Koichi Matsuzaki
    • G03G15/06
    • G03G15/065G03G15/0806G03G2215/00029G03G2215/0634
    • An image forming apparatus includes data conversion, charging, exposure, developer supply, image density calculation, determination and voltage change mechanisms. The data conversion mechanism converts image data into printing data. The charging mechanism charges an image carrier. The exposure mechanism forms an electrostatic latent image on the image carrier based on the printing data. The developer supply mechanism supplies a developer to the image carrier having the electrostatic latent image with an electrostatic force. The image density calculation mechanism calculates an image density of an image having a predetermined number of lines in the printing data. The determination mechanism determines whether a voltage to be applied to the developer supply mechanism is changed based on a calculation result by the image density calculation mechanism. The voltage change mechanism changes the voltage to be applied to the developer supply mechanism based on a determination result by the determination mechanism.
    • 图像形成装置包括数据转换,充电,曝光,显影剂供应,图像浓度计算,确定和电压变化机制。 数据转换机制将图像数据转换为打印数据。 充电机构对图像载体进行充电。 曝光机构基于打印数据在图像载体上形成静电潜像。 显影剂供给机构将具有静电力的具有静电潜像的图像载体供给显影剂。 图像浓度计算机构计算打印数据中具有预定行数的图像的图像浓度。 确定机构基于图像浓度计算机构的计算结果来确定施加到显影剂供应机构的电压是否改变。 电压变化机构基于判定机构的判断结果,改变施加于显影剂供给机构的电压。
    • 6. 发明申请
    • Image Forming Apparatus
    • 图像形成装置
    • US20090016758A1
    • 2009-01-15
    • US12169666
    • 2008-07-09
    • Koichi MATSUZAKI
    • Koichi MATSUZAKI
    • G03G15/10
    • G03G15/065G03G15/0806G03G2215/00029G03G2215/0634
    • An image forming apparatus includes data conversion, charging, exposure, developer supply, image density calculation, determination and voltage change mechanisms. The data conversion mechanism converts image data into printing data. The charging mechanism charges an image carrier. The exposure mechanism forms an electrostatic latent image on the image carrier based on the printing data. The developer supply mechanism supplies a developer to the image carrier having the electrostatic latent image with an electrostatic force. The image density calculation mechanism calculates an image density of an image having a predetermined number of lines in the printing data. The determination mechanism determines whether a voltage to be applied to the developer supply mechanism is changed based on a calculation result by the image density calculation mechanism. The voltage change mechanism changes the voltage to be applied to the developer supply mechanism based on a determination result by the determination mechanism.
    • 图像形成装置包括数据转换,充电,曝光,显影剂供应,图像浓度计算,确定和电压变化机制。 数据转换机制将图像数据转换为打印数据。 充电机构对图像载体进行充电。 曝光机构基于打印数据在图像载体上形成静电潜像。 显影剂供给机构将具有静电力的具有静电潜像的图像载体供给显影剂。 图像浓度计算机构计算打印数据中具有预定行数的图像的图像浓度。 确定机构基于图像浓度计算机构的计算结果来确定施加到显影剂供应机构的电压是否改变。 电压变化机构基于判定机构的判断结果,改变施加于显影剂供给机构的电压。
    • 7. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US07395017B2
    • 2008-07-01
    • US11427209
    • 2006-06-28
    • Koichi Matsuzaki
    • Koichi Matsuzaki
    • G03G15/08
    • G03G15/0812G03G15/2064G03G2215/0604
    • An image forming apparatus prints an image on paper. A developing roller supplies toner to an electrostatic latent image on a photoconductive drum to form a toner image. A developing blade forms a thin layer of toner on the developing roller. A transfer unit transfers the toner image onto the paper. A fixing unit fixes the toner image on the paper into a permanent image. The developing roller rotates at a circumferential speed from 150 to 250 mm/sec. The developing blade applies a line pressure in the range of 34-68 gf/cm to the developing roller. The toner has a glass transition temperature Tg from 45 to 77□, a softening temperature from 58 to 98□, a flow-beginning temperature Ts from 78 to 138□, and a melting point Tm from 105 to 189□. Tg, Ts, Tfb and Tm are related such that Tm>Tfb>Ts.
    • 图像形成装置在纸张上打印图像。 显影辊将调色剂供应到感光鼓上的静电潜像以形成调色剂图像。 显影刮板在显影辊上形成薄的调色剂层。 转印单元将调色剂图像转印到纸上。 定影单元将纸上的调色剂图像固定成永久图像。 显影辊以150-250mm / sec的圆周速度旋转。 显影刮刀将显示辊上的压力范围为34-68gf / cm。 调色剂的玻璃化转变温度Tg为45〜77℃,软化温度为58〜98℃,流动开始温度Ts为78〜138℃,熔点Tm为105〜189℃。 Tg,Ts,Tfb和Tm相关,使得Tm> Tfb> Ts。