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    • 5. 发明申请
    • INK DETECTOR VIEWABLE WITH THE HUMAN EYE
    • 油墨探测器可以与人眼一起看
    • WO2009058709A2
    • 2009-05-07
    • PCT/US2008/081265
    • 2008-10-27
    • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.OGLE, Holli C.STATHEM, Ralph L.BALDWIN, Marc A.
    • OGLE, Holli C.STATHEM, Ralph L.BALDWIN, Marc A.
    • B41J2/175G01F23/02
    • B41J2/17566B41J2/17513
    • An ink cartridge (1) configured to hold an ink includes a substantially hollow body (23) including an inner space (21) and a substantially continuous inner wall (5). The cartridge (1) further includes an optical prism (2, 2'', 2''') in the inner space (21), disposed at a predetermined distance from the continuous inner wall (5) such that an ink pocket (6) is defined by a prism wall (17) and the continuous inner wall (5). The prism (2, 2'', 2''') includes at least one reflection site (4) formed at an angle configured to reflect light from a light source (3) through the prism (2, 2'', 2''') at a predetermined height relative to a bottom (10) of the body (23). If ink is present in the ink pocket (6) at a level below at least a portion of the reflection site (4), the ink does not block the light reflected off of the portion of the reflection site (4) from traveling across the ink pocket (6) at the predetermined height, such that the reflected light is externally viewable.
    • 被构造为保持墨的墨盒(1)包括包括内部空间(21)和基本上连续的内壁(5)的基本上中空的主体(23)。 盒(1)还包括位于内部空间(21)中的光学棱镜(2,2'',2“'),其设置在距连续内壁(5)预定距离处,使得墨盒(6 )由棱镜壁(17)和连续的内壁(5)限定。 棱镜(2,2“,2”')包括至少一个反射部位(4),所述反射部位以一定角度形成,该角度构造成反射来自光源(3)的光通过棱镜(2,2',2' '')相对于本体(23)的底部(10)处于预定高度。 如果油墨袋中的油墨在低于反射部位(4)的至少一部分的位置处存在,则油墨不会阻挡从反射部位(4)的部分反射的光穿过 墨囊(6)在预定的高度上,使得反射光在外部可见。