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    • 6. 发明授权
    • Method of ejecting microdroplets of ink
    • 喷墨的微滴的方法
    • US07549716B2
    • 2009-06-23
    • US11427502
    • 2006-06-29
    • Hitoshi KidaTakahiro Yamada
    • Hitoshi KidaTakahiro Yamada
    • B41J29/38
    • B41J2/04588B41J2/04516B41J2/04573B41J2/04581B41J2/14274B41J2202/06
    • The method of ejecting microdroplets of ink includes a first step for generating one ink column on the outside of the nozzle and for separating a tip end of the one ink column from a remaining part of the one ink column to form a microdroplet of ink on the outside of one nozzle, and a second step for controlling an ink volume velocity in the ink pressure chamber that is connected to the nozzle to generate another ink column and to push the another ink column out of the nozzle, thereby causing the another ink column to overtake and merge with the remaining part of the one ink column and to return into the nozzle while pulling the remaining part of the one ink column back into the nozzle.
    • 喷出墨水微滴的方法包括:在喷嘴的外侧产生一个墨水柱并将一个墨水柱的末端与该墨水柱的剩余部分分开的第一步骤,以形成墨水的微滴 在一个喷嘴外部,以及第二步骤,用于控制连接到喷嘴的墨压力室中的墨水体积速度,以产生另一个墨水柱并将另一个墨水柱推出喷嘴,从而使另一个墨水柱 超过并与一个墨水柱的剩余部分合并并返回到喷嘴中,同时将一个墨水柱的剩余部分拉回到喷嘴中。
    • 9. 发明授权
    • Refresh ink ejection device and inkjet recording device including the refresh ink ejection device
    • 刷新喷墨装置和包括刷新喷墨装置的喷墨记录装置
    • US06796632B2
    • 2004-09-28
    • US10363822
    • 2003-03-07
    • Takahiro YamadaKunio SatouShinya KobayashiHitoshi KidaKazuo ShimizuLee Chahn
    • Takahiro YamadaKunio SatouShinya KobayashiHitoshi KidaKazuo ShimizuLee Chahn
    • B41J2165
    • B41J2/16532B41J2/06B41J2/095B41J2/1721B41J2/185
    • An orifice electrode/ink receiving member 11 is attached to an orifice plate 13 that is attached to a recording head module 10. An ink absorbing member 111 is embedded in a lower surface of the orifice electrode/ink receiving member 11. A recording ink droplet 14 ejected through an orifice 12 is deflected as needed by an angled electric field 85 and then impinges on a recording sheet 60 to form a recording dot 70. On the other hand, a refresh ink droplet 15 is deflected by the angled electric field 85 and impinges on the ink absorbing member 111 of the orifice electrode/ink receiving member 11 after flying in a U-turn path. In this configuration, the ink absorbing member 111 provided to the orifice electrode/ink receiving member 11 collects ink, so that there is no need to increase a gap between the recording head module 10 and the recording sheet 60 so much in order to dispose the ink absorbing member 111, preventing decrease in recording precision and paper jam. Also, it is possible to perform the ink refresh operation using a minimum amount of ink anytime needed without stopping recording operations.
    • 孔口电极/油墨接收构件11附接到附着到记录头模块10的孔板13上。油墨吸收构件111嵌入在孔电极/油墨接收构件11的下表面中。记录墨滴 通过孔12喷射的液体15根据需要通过倾斜电场85偏转,然后撞击在记录片材60上以形成记录点70.另一方面,刷新墨滴15被倾斜的电场85和 在U形转弯路径中飞行之后,撞击孔口电极/油墨接收部件11的吸墨件111。 在这种结构中,设置在孔电极/墨接收部件11上的墨吸收部件111收集墨水,因此不需要增加记录头模块10和记录片材60之间的间隙,以便配置 吸墨构件111,防止记录精度降低和卡纸。 此外,可以在不停止记录操作的情况下使用最少量的墨水来执行墨水刷新操作。
    • 10. 发明授权
    • Ink jet recording device capable of detecting defective nozzle with high signal-to-noise ratio
    • 能够检测具有高信噪比的缺陷喷嘴的喷墨记录装置
    • US06702418B2
    • 2004-03-09
    • US10002128
    • 2001-12-05
    • Kunio SatouTakahiro YamadaHitoshi KidaShinya KobayashiKazuo Shimizu
    • Kunio SatouTakahiro YamadaHitoshi KidaShinya KobayashiKazuo Shimizu
    • B41J29393
    • B41J2/09
    • When positively charged ink droplets 608 from a defective nozzle impact a negatively charged deflector electrode 320, the positive charge on condenser 609 flows to the ground via a FET 618 of a photo-coupler 610. As a result, the electric discharge occurs by an amount equivalent to the charging amount of the ink droplets 608 clinging on the electrode 320. Because a switching signal 606 is “1”, the ON resistance of the photo-coupler 610 is large, and the ON resistance of the FET 620 of the photo-coupler 612 is small. Accordingly, the discharge due to the charged ink droplets 608 is detected as a large detection voltage and amplified by an operational amplifier 613 . Because the charger voltage of the condenser 609 is static and has no noise, even when the detection output 615 is highly amplified, noise during the detection is suppressed.
    • 当来自有缺陷的喷嘴的带正电的墨滴608撞击带负电的偏转器电极320时,电容器609上的正电荷经由光电耦合器610的FET618流到地。结果,放电发生量 相当于粘附在电极320上的墨滴608的充电量。由于切换信号606为“1”,因此光电耦合器610的导通电阻大,光电耦合器610的FET620的导通电阻, 耦合器612很小。 因此,由于充电的墨滴608引起的放电被检测为大的检测电压并由运算放大器613放大。 由于冷凝器609的充电器电压是静态的并且没有噪声,所以即使当检测输出615高度放大时,也可以抑制检测期间的噪声。