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    • 3. 发明授权
    • Method and apparatus for cleaning/maintaining of an AIP type printhead
    • 用于清洁/维持AIP型打印头的方法和装置
    • US06350012B1
    • 2002-02-26
    • US09340741
    • 1999-06-28
    • Shahin SarkissianJoy RoyForeshteh Lesani
    • Shahin SarkissianJoy RoyForeshteh Lesani
    • B41J2165
    • B41J2/16517B41J2/16535
    • In AIP printheads, misfunction after printing a number of prints, due to the accumulation of ink and dust around orifices in the orifice plate may occur. In order to clean the printheads, the dirty printhead is first capped and the ink pressure in the printhead increase significantly to allow ink to escape through the orifices and completely fill a small gap inside the cap portion. After letting the orifices soak for a predetermined time to dissolve the dried ink and loosen dust debris which may be found on the printheads, the cap drainhole is opened to drain the ink while keeping the ink pressure inside the head at an intermediate higher level. This higher pressure prevents the ink still remaining inside the bore of each orifice hole from reentering the printhead. The dirty ink remaining inside the orifice bore is removed using a wiping station in separate steps.
    • 在AIP打印头中,由于孔板上的墨孔周围的墨水和灰尘的积聚可能会在打印多张打印后发生故障。 为了清洁打印头,首先盖住脏的打印头,并且打印头中的墨水压力显着增加,以使油墨通过孔口逸出并完全填充盖部分内部的小间隙。 在使孔口浸泡预定时间以溶解干燥的油墨并松开打印头上可能发现的灰尘碎屑之后,打开帽排水孔以排出油墨,同时将头部内的油墨压力保持在较高水平。 这种较高的压力可防止仍然残留在每个孔口孔内的墨水重新进入打印头。 在单独的步骤中,使用擦拭站去除留在孔口内的脏墨。
    • 4. 发明授权
    • Self-cleaning wet wipe method and apparatus for cleaning orifices in an AIP type printhead
    • 自清洁湿擦拭方法和AIP型打印头清洗孔的设备
    • US06336699B1
    • 2002-01-08
    • US09448008
    • 1999-11-23
    • Shahin SarkissianJoy Roy
    • Shahin SarkissianJoy Roy
    • B41J2165
    • B41J2/16538B41J2/16552
    • In order to clean a dirty printhead, the dirty printhead is first capped and the ink pressure in the printhead increased significantly to allow ink to escape through the orifices and completely fill a small gap inside the cap portion. After letting the orifices soak for a predetermined time to dissolve the dried ink and loosen dust debris which may be found on the printheads, the cap drainhole is opened to drain the ink while keeping the ink pressure inside the head at an intermediate higher level. Dirty ink remaining inside the orifice bore is removed using a self cleaning wiping station in separate steps. During a first step, the wiping element is pressed into contact with the orifices. The dirty ink, because of the high pressure inside the printhead, is unable to reenter the printhead and is absorbed by the wiping element. In a second step, the pressure inside the printhead is decreased significantly below operating pressures to enable the menisci to retreat inside an orifice lip. Then the orifices are again wiped with another portion of the wiping element to remove any remaining ink and to assist in drying the printhead. Once the printhead has been cleaned, the wiping station is moved out of engagement with the printhead and the wiping station automatically cleans the wiping element by passing the wiping element through the washing fluid and the squeegee element until absorbed ink is removed from the wiping element.
    • 为了清洁脏的打印头,脏的打印头首先被盖住,并且打印头中的墨水压力显着增加,从而允许墨水通过孔排出并完全填充盖部分内的小间隙。 在使孔口浸泡预定时间以溶解干燥的油墨并松开打印头上可能发现的灰尘碎屑之后,打开帽排水孔以排出油墨,同时将头部内的油墨压力保持在较高水平。 在单独的步骤中使用自清洁擦拭站去除留在孔口内的脏墨。 在第一步骤中,擦拭元件被压接与孔口接触。 由于打印头内部的高压,脏的墨水不能重新进入打印头并被擦拭元件吸收。 在第二步骤中,打印头内部的压力明显地降低到工作压力以下,以使得弯液面能够在孔唇口内退缩。 然后再次用擦拭元件的另一部分擦拭孔口以除去任何剩余的油墨并有助于干燥打印头。 一旦打印头被清洁,擦拭站就脱离与打印头的接合,并且擦拭站通过使擦拭元件通过洗涤流体和刮板元件自动清洁擦拭元件,直到从擦拭元件移除吸收的墨。