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    • 6. 发明授权
    • Cleaning roller
    • 清洁辊
    • US6118970A
    • 2000-09-12
    • US324772
    • 1999-06-03
    • Masayuki SuzukiHirokazu AndoTakao MizutaniMasao Isoda
    • Masayuki SuzukiHirokazu AndoTakao MizutaniMasao Isoda
    • G03G21/10G03G15/24G03G21/00
    • G03G21/0058
    • A cleaning roller is used for electrostatically attracting residual toner left on a photoconductive drum. The cleaning roller includes a shaft and a member formed on the shaft to cover the shaft. The member has contact portions that lie in a cylindrical plane and a plurality of recesses that are formed in the member and bounded by the contact portions. The contact portions are in contact with the photoconductive drum to attract residual toner left on the photoconductive drum. The recesses hold therein the residual toner attracted to the contact portions. The recesses have openings that lie in the cylindrical plane such that a ratio of the areas of the contact portions to the areas of the openings is in the range from 3:7 to 1:1. The openings of the recesses have effective diameters in the range from 50 to 150 .mu.m if the toner particles have effective diameters in the range from 6 to 9 .mu.m. The cleaning roller includes a metal shaft and a resilient member formed on the metal shaft to cover the metal shaft. The resilient member has an electrical resistance in the range from 5.times.10.sup.6 .OMEGA. to 5.times.10.sup.9 .OMEGA..
    • 清洁辊用于静电吸引留在感光鼓上的残留调色剂。 清洁辊包括轴和形成在轴上以覆盖轴的构件。 构件具有位于圆柱形平面中的接触部分和形成在构件中并且由接触部分限定的多个凹部。 接触部分与感光鼓接触以吸引残留在感光鼓上的调色剂。 凹部保持吸附到接触部分的残留调色剂。 这些凹部具有位于圆柱形平面中的开口,使得接触部分与开口区域的面积之比在3:7至1:1之间。 如果调色剂颗粒的有效直径在6至9μm的范围内,凹槽的开口具有在50至150μm的范围内的有效直径。 清洁辊包括金属轴和形成在金属轴上以覆盖金属轴的弹性构件。 弹性构件的电阻范围为5×10 6欧姆〜5×10 9欧米茄。
    • 8. 发明授权
    • Method of cleaning residual toner from drum and rollers of image forming
apparatus
    • 从成像设备的滚筒和滚筒清洗残留调色剂的方法
    • US6081679A
    • 2000-06-27
    • US396793
    • 1999-09-15
    • Tsutomu YamaneAkihito OnishiHirokazu AndoTakao MizutaniMasao Isoda
    • Tsutomu YamaneAkihito OnishiHirokazu AndoTakao MizutaniMasao Isoda
    • G03G15/02G03G15/08G03G15/16G03G21/00G03G21/10
    • G03G21/0064G03G2215/021G03G2221/0005
    • A method for cleaning an image-forming apparatus. Toner is charged to the first polarity prior to transferring the toner image to the print medium and accidentally inverted from the first polarity to a second polarity opposite to the first polarity during the transfer of the toner image to the print medium. When performing a cleaning operation, a first voltage of a first polarity is applied to at least one of a charging roller and a cleaning roller in contact with a surface of a photoconductor. The surface of the photoconductor is charged to a second voltage. The second voltage has a smaller value than the first voltage and is of the same polarity as the first voltage. Therefore, the toner of the second polarity sandwiched between the charged surface of the photoconductor and the at least one of the charging roller and cleaning roller is inverted in polarity, i.e., from the second polarity to the first polarity by triboelectric charging. If the first voltage is applied to the cleaning roller, the photoconductor may be charged to the second voltage by a transfer device or by a charging device. Alternatively, if the first voltage is applied to the charging roller, the photoconductor may be charged to the second voltage by a cleaning device or by the transfer device.
    • 一种清洁图像形成装置的方法。 在将调色剂图像转印到打印介质之前,将调色剂图像转印到打印介质上并将墨粉从第一极性转移到与第一极性相反的第二极性之前将墨粉充电至第一极性。 当执行清洁操作时,将第一极性的第一电压施加到与感光体的表面接触的充电辊和清洁辊中的至少一个。 光电导体的表面被充电到第二电压。 第二电压具有比第一电压小的值,并且具有与第一电压相同的极性。 因此,夹在光电导体的充电表面和充电辊和清洁辊中的至少一个之间的第二极性的调色剂的极性,即通过摩擦带电从第二极性反转到第一极性。 如果第一电压施加到清洁辊,则可以通过转印装置或充电装置将感光体充电到第二电压。 或者,如果将第一电压施加到充电辊,则可以通过清洁装置或转印装置将感光体充电至第二电压。
    • 10. 发明授权
    • Method of manufacturing an ink jet head
    • 制造喷墨头的方法
    • US6023825A
    • 2000-02-15
    • US154808
    • 1998-09-17
    • Hirokazu AndoMitsuru KishimotoNoboru OoishiMasahiko ShimosugiIsao Shibata
    • Hirokazu AndoMitsuru KishimotoNoboru OoishiMasahiko ShimosugiIsao Shibata
    • B41J2/045B41J2/055B41J2/14B41J2/16H01L41/22
    • B41J2/1623B41J2/14209B41J2/1609B41J2/1626B41J2/1632B41J2/1643Y10T29/42
    • An ink-jet head comprising a plurality of sidewalls each imparting a pressure pulse to an ink pressurizing cell by means of shear mode deformation, and a front wall having a plurality of orifices. The ink in the ink pressurizing cells is ejected from the orifices. Each sidewall comprises a first wall section, a first electrode disposed thereon, an anisotropic adhesive disposed thereon, a second electrode disposed thereon, and a second wall section disposed thereon. Width of the first electrode is narrower than width of the first wall section, and the upper surface of the first wall section has first side areas which are not covered by the first electrode. Width of the second electrode is narrower than width of the second wall section, and the lower surface of the second wall section has second side areas which are not covered by the second electrode. The anisotropic adhesive has conductivity only in a direction perpendicular to the upper surface of the first wall section and the lower surface of the second wall section, and the anisotropic adhesive covers the first and second electrodes so that the first and second electrodes are not exposed to the ink in the ink pressurizing cells.
    • 一种喷墨头,包括多个侧壁,每个侧壁通过剪切模式变形向油墨加压室施加压力脉冲,以及具有多个孔的前壁。 油墨加压池中的油墨从孔中喷出。 每个侧壁包括第一壁部分,设置在其上的第一电极,设置在其上的各向异性粘合剂,设置在其上的第二电极和设置在其上的第二壁部分。 第一电极的宽度比第一壁部的宽度窄,第一壁部的上表面具有未被第一电极覆盖的第一侧面区域。 第二电极的宽度比第二壁部的宽度窄,第二壁部的下表面具有未被第二电极覆盖的第二侧面区域。 各向异性粘合剂仅在垂直于第一壁部分的上表面和第二壁部分的下表面的方向上具有导电性,并且各向异性粘合剂覆盖第一和第二电极,使得第一和第二电极不暴露于 油墨中的油墨加压单元。