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    • 83. 发明授权
    • Pretransfer charging device and image forming apparatus including same
    • 预传输充电装置和包括其的图像形成装置
    • US07647014B2
    • 2010-01-12
    • US11704388
    • 2007-02-09
    • Toshiaki KagawaHideki OhnishiHiroshi KidaYoshiaki Masuda
    • Toshiaki KagawaHideki OhnishiHiroshi KidaYoshiaki Masuda
    • G03G15/16G03G15/02
    • G03G15/169G03G15/0266G03G15/0291G03G2215/028
    • The present invention is made to provide a pretransfer charging device, which allows (i) reduction of generation of discharge products such as ozone and nitroxide, (ii) excellent uniform charging, (iii) continuous stable charging for a long period of time, and (iv) restraint of distortion of a toner image. The pretransfer charging device includes (i) ion generation needles each provided face to face with an image carrier such as a photoconductor drum or an intermediating transfer belt, and (ii) a high-voltage power supply for applying a negative voltage to each of the ion generation needles. The voltage to be applied from the high-voltage power supply is not less than an ion production threshold voltage but is less than a corona discharge threshold voltage. With this, no corona discharge occurs but negative ions can be generated. This makes it possible to solve various problems caused due to the corona discharge.
    • 本发明提供一种预转印充电装置,其能够(i)减少诸如臭氧和氮氧化物的放电产物的产生,(ii)优异的均匀充电,(iii)长时间连续稳定充电,以及 (iv)限制调色剂图像的变形。 预转印充电装置包括:(i)各离子产生针各自与诸如感光鼓或中间转印带的图像载体面对面地设置,以及(ii)高压电源,用于向 离子生成针。 从高压电源施加的电压不小于离子产生阈值电压,但小于电晕放电阈值电压。 由此,不会发生电晕放电,而是会产生负离子。 这使得可以解决由于电晕放电引起的各种问题。
    • 85. 发明申请
    • FIXING APPARATUS AND IMAGE FORMING APPARATUS
    • 固定装置和图像形成装置
    • US20080124144A1
    • 2008-05-29
    • US11945301
    • 2007-11-27
    • Takashi MUKAIToshiaki KAGAWAHiroshi Kida
    • Takashi MUKAIToshiaki KAGAWAHiroshi Kida
    • G03G15/20
    • G03G15/2025
    • A fixing apparatus is provided that includes a fixing section, a pressure section, and an external heating section, the fixing apparatus being adaptable to an increase in image forming process speed, in which fixing apparatus, the fixing section, the external heating section, and the like section can be sufficiently cleaned without addition of another cleaning section, a growth in size of the fixing apparatus, nor a drastic increase in a manufacturing cost. In an image forming apparatus provided with a fixing apparatus which includes a fixing roller, a pressure roller, an external heating section, and a cleaning section having a cleaning web, the cleaning web is disposed in pressure-contact with the external heating section by tension of the cleaning web.
    • 提供一种定影装置,其包括固定部分,压力部分和外部加热部分,所述定影装置适于增加图像形成处理速度,其中定影装置,固定部分,外部加热部分和 可以在不添加另一个清洁部分,定影装置的尺寸增长的情况下充分地清洁该部分,也不会大大增加制造成本。 在设置有定影装置的图像形成装置中,该定影装置包括定影辊,压力辊,外部加热部分和具有清洁纸幅的清洁部分,该清洁纸幅通过张力与外部加热部分压力接触 的清洁网。
    • 86. 发明申请
    • Projection-Type Display Apparatus
    • 投影型显示装置
    • US20080036973A1
    • 2008-02-14
    • US11632159
    • 2006-03-30
    • Kuniko KojimaHiroshi Kida
    • Kuniko KojimaHiroshi Kida
    • G03B21/28
    • H04N9/315G02B17/08G02B27/0994G03B21/142G03B21/2066H04N5/7416H04N9/3114H04N9/3141
    • A projection-type display apparatus includes an illumination optical system (1) including a light source, a reflection-type light valve (2) having an image forming area on a to-be-illuminated surface illuminated by the illumination optical system (1), and a projection optical system (3) that projects an image formed on the image forming area of the reflection-type light valve (2). The projection optical system (1) is shiftable in a direction approximately perpendicular to a projection optical axis. An F-number of the projection optical system (3) is smaller than an F-number of the illumination optical system (1). Between the projection optical system (3) and the reflection-type light valve (2), an opening defining member (12) that defines an incident side opening of the projection optical system (3) is provided, which is not moved by the shifting of the projection optical system (3).
    • 投影型显示装置包括:照明光学系统(1),其包括光源;反射型光阀(2),其具有由所述照明光学系统(1)照射的被照射面上的图像形成区域; 以及投射形成在反射型光阀(2)的图像形成区域上的图像的投影光学系统(3)。 投影光学系统(1)可以在大致垂直于投影光轴的方向上移动。 投影光学系统(3)的F数小于照明光学系统(1)的F数。 在投影光学系统(3)和反射型光阀(2)之间,设有限定投影光学系统(3)的入射侧开口的开口限定元件(12),其不被移动 的投影光学系统(3)。