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    • 3. 发明授权
    • Direct printing apparatus with automatic cleaning of excess print particles
    • 直接打印设备,自动清洁多余的打印颗粒
    • US06176567B1
    • 2001-01-23
    • US09382132
    • 1999-08-24
    • Koji UnoToshio YamakiHirokatsu ShimadaYoshifumi ShibataHiroshi Hiraguchi
    • Koji UnoToshio YamakiHirokatsu ShimadaYoshifumi ShibataHiroshi Hiraguchi
    • B41J2385
    • G03G15/346G03G2215/0187G03G2217/0025
    • The present invention provides a direct printing apparatus which prevents noise at a time of operation, downsizes the apparatus, prevents decrease of strength, and enables to certainly clean remaining printing particles. An endless belt member 92 disposed between a backing electrode 44 and a printing head 50 of printing station 16, the endless belt member 92 receiving the printing particles 38 which are propelled from the printing head and cleaning means for cleaning the printing particles adhering to the surface of the endless belt member are provided, whereby the printing particles adhering to the apertures of the printing head are collected on the endless belt member so that the printing particles are recovered by the cleaning means. Concretely, the backing electrode is applied with a voltage of opposite polarity to the printing particles adhering to the printing head whereby the printing particles adhering to the apertures of the printing head is cleaned.
    • 本发明提供了一种在操作时防止噪声的直接打印装置,使装置小型化,防止强度降低,并且能够可靠地清洁剩余的打印颗粒。 设置在背衬电极44和印刷台16的印刷头50之间的环形带构件92,环形带构件92接收从打印头推出的印刷颗粒38和用于清洁附着在表面上的印刷颗粒的清洁装置 提供了环形带构件,由此粘附到打印头的孔的印刷颗粒被收集在环形带构件上,使得打印颗粒被清洁装置回收。 具体地说,背衬电极被施加与附着在打印头上的印刷颗粒具有相反极性的电压,从而清洁粘附到打印头的孔的印刷颗粒。
    • 4. 发明授权
    • Direct printing apparatus
    • 直接打印设备
    • US06241343B1
    • 2001-06-05
    • US09212207
    • 1998-12-16
    • Hirokatsu ShimadaToshio YamakiKoji UnoYoshifumi ShibataHiroshi Hiraguchi
    • Hirokatsu ShimadaToshio YamakiKoji UnoYoshifumi ShibataHiroshi Hiraguchi
    • B41J206
    • G03G15/346
    • A direct printing apparatus 2 for depositing printing particles 38 on a print medium 8 comprises a sleeve 30a for bearing charged printing particles 38 thereon, a drive roller 30b provided in the sleeve 30a, the drive roller 30b having a smaller outside diameter than an inside diameter of the sleeve 30a, a backing electrode 44 opposed to the sleeve 30a, a printing head 50 disposed between the sleeve 30a and the backing electrode 44, the printing head 50 having a plurality of apertures 56 through which the printing particles 38 can propel and a plurality of electrodes 68 disposed around the plurality of apertures 56. A spacer 90 is provided between the sleeve 30a and the printing head 50. The sleeve 30a has a slack 31 through which the sleeve 30a comes into contact with the spacer 90.
    • 用于在打印介质8上沉积印刷颗粒38的直接打印设备2包括用于在其上承载带电印刷颗粒38的套筒30a,设置在套筒30a中的驱动辊30b,驱动辊30b的外径小于内径 套筒30a的背面电极44,与套筒30a相对的背衬电极44,设置在套筒30a和背衬电极44之间的打印头50,打印头50具有多个孔56,打印颗粒38可以通过该孔56推动, 多个电极68设置在多个孔56周围。间隔件90设置在套筒30a和打印头50之间。套筒30a具有松弛部31,套筒30a通过该松弛部31与间隔件90接触。
    • 6. 发明授权
    • Apparatus for propelling toner through apertures to form images on a recording medium
    • 用于通过孔推动调色剂以在记录介质上形成图像的装置
    • US06281915B1
    • 2001-08-28
    • US09265304
    • 1999-03-09
    • Hirokatsu ShimadaToshio YamakiKoji UnoYoshifumi ShibataHiroshi Hiraguchi
    • Hirokatsu ShimadaToshio YamakiKoji UnoYoshifumi ShibataHiroshi Hiraguchi
    • B41J206
    • B41J2/4155G03G15/346G03G2217/0025
    • A recording apparatus of the present invention includes a bearing member for bearing a recording medium having toner and carrier and a backing electrode opposing to the bearing member for electrically attracting the toner on the bearing member. The toner and carrier are charged to opposite polarities. A substrate having a plurality of apertures is provided between the bearing member and the backing electrode. This allows the toner to propel from the bearing member toward the backing electrode. Further, both the toner and carrier have respective volume mean diameters smaller than a diameter of the apertures, and the volume mean diameter of the toner is larger than that of the toner. With the arrangement, the toner will propel through each aperture to form a corresponding image portion, i.e., dot, thereby forming a high quality image without any dot-defect.
    • 本发明的记录装置包括用于承载具有调色剂和载体的记录介质的轴承构件和与轴承构件相对的背衬电极,用于电吸引轴承构件上的调色剂。 调色剂和载体被充电到相反的极性。 具有多个孔的基底设置在支承构件和背衬电极之间。 这允许调色剂从轴承构件推向背衬电极。 此外,调色剂和载体都具有小于孔的直径的相应体积平均直径,并且调色剂的体积平均直径大于调色剂的体积平均直径。 通过这种布置,调色剂将通过每个孔推进以形成相应的图像部分,即点,由此形成高质量的图像而没有任何点缺陷。
    • 7. 发明授权
    • Tandem type of direct printing apparatus using gating apertures for supplying toner
    • 串联式直接打印装置,使用选通孔供给调色剂
    • US06270196B1
    • 2001-08-07
    • US09212206
    • 1998-12-16
    • Koji UnoToshio YamakiHirokatsu ShimadaYoshifumi ShibataHiroshi Hiraguchi
    • Koji UnoToshio YamakiHirokatsu ShimadaYoshifumi ShibataHiroshi Hiraguchi
    • B41J206
    • B41J2/4155
    • A tandem type direct printing apparatus 2 comprising a plurality of printing stations 16a, 16b, 16c and 16d for depositing printing particles 38 on a print medium 8. The plurality of printing stations 16a, 16b, 16c and 16d are positioned in a moving direction of the print medium 8. Each printing station 16a, 16b, 16c, 16d comprises a bearing member 30 for bearing charged printing particles 38 thereon, a backing electrode 44 opposed to the bearing member 38, a printing head 50 disposed between the bearing member 30 and the backing electrode 44, the printing head 50 having a plurality of apertures 56 through which the printing particles 38 can propel and a plurality of electrodes 68 disposed around the plurality of apertures 56. Each of the plurality of apertures 56 of the printing head 50 in any one of the printing stations 16b corresponds to the aperture 56 of the printing head 50 in another printing station 16a so that the latter is closest to a line along the moving direction of the printing medium which passes through the center of the former.
    • 一种串联式直接打印装置2,包括用于在打印介质8上沉积打印颗粒38的多个打印站16a,16b,16c和16d。多个打印站16a,16b,16c和16d位于 打印介质8.每个印刷站16a,16b,16c,16d包括用于在其上承载带电印刷颗粒38的支承构件30,与轴承构件38相对的背衬电极44,设置在轴承构件30和 背衬电极44,打印头50具有多个孔56,打印颗粒38可以通过该孔56推动,多个电极68设置在多个孔56周围。打印头50的多个孔56中的每一个在 打印站16b中的任何一个对应于另一打印站16a中的打印头50的孔56,使得打印站最靠近沿着移动方向的移动方向的一条线 打印介质通过前者的中心。
    • 8. 发明授权
    • Tandem type of direct printing apparatus and method for making a registration of composite image therein
    • 串联型直接打印装置及其中的复合图像的配准方法
    • US06244692B1
    • 2001-06-12
    • US09212222
    • 1998-12-16
    • Hiroshi HiraguchiKoji UnoHirokatsu ShimadaYoshifumi ShibataToshio Yamaki
    • Hiroshi HiraguchiKoji UnoHirokatsu ShimadaYoshifumi ShibataToshio Yamaki
    • B41J206
    • B41J2/4155
    • The tandem type direct printing apparatus 2 comprises a plurality of printing stations 16a, 16b, 16c and 16d for propelling printing particles 38 born on a bearing member 30 through a plurality of apertures 56 formed on a printing head 50 and for depositing the printing particles 38 on a print medium 8 to form an image. The plurality of printing stations 16a, 16b, 16c and 16d are positioned in the moving direction of the print medium 8 to form the composite image on the print medium 8. The method of the present invention comprises providing a control electrode for deflecting printing particles 70 in adjacent to each aperture 56 in at least one of the plurality of printing stations 16a, 16b, 16c and 16d, the control electrode 70 being positioned at least one side of a direction different from the moving direction of the print medium 38; and applying a voltage to the control electrode 70 so that the printing particles 38 passing through the aperture 56 are deflected to adjust the position of the image formed on the print medium in the perpendicular direction to the moving direction of the print medium 8.
    • 串联式直接打印设备2包括多个印刷站16a,16b,16c和16d,用于通过形成在打印头50上的多个孔56和用于沉积印刷颗粒38来推动出现在轴承部件30上的印刷颗粒38 在打印介质8上形成图像。 多个打印站16a,16b,16c和16d位于打印介质8的移动方向上,以在打印介质8上形成合成图像。本发明的方法包括提供用于使打印颗粒70偏转的控制电极 在多个打印站16a,16b,16c和16d中的至少一个印刷站16a,16b中的每个孔56附近,控制电极70位于与打印介质38的移动方向不同的方向的至少一侧上; 并且向控制电极70施加电压,使得穿过孔56的印刷颗粒38偏转,以便在与打印介质8的移动方向垂直的方向上调节在打印介质上形成的图像的位置。