公开(公告)号：US06764171B2

公开(公告)日：2004-07-20

申请号：US10293068

申请日：2002-11-13

Applicant: Hing Ching Tham

Inventor： Hing Ching Tham

IPC: B41J2175

CPC classification number: B41J2/17556 ,  B41J2/17513 ,  B41J2002/17516

Abstract: A pressure regulator for maintaining a negative pressure in an ink reservoir of a liquid ink cartridge is disclosed. The pressure regulator includes at least a prop plate for propping a moveable wall away from another wall of the reservoir. A biasing means is attached to the plate a predetermined distance away from a central axis of the plate for urging the plate against the moveable wall to space apart the pair of walls and to allow controlled lopsided collapse of the moveable wall. An ink jet printer ink cartridge that includes the pressure regulator in a reservoir is also disclosed. An indicator member is attached to the moveable wall of the reservoir and viewable from outside of the housing. The pressure regulator is placed within the reservoir with the biasing means adjacent the indicator member. A method of indicating an amount of remaining ink in the reservoir is also disclosed.

公开(公告)号：US06857731B2

公开(公告)日：2005-02-22

申请号：US10119667

申请日：2002-04-10

Applicant: Hing Ching Tham

Inventor： Hing Ching Tham

IPC: B41J2/175

CPC classification number: B41J2/17556 ,  B41J2/17513

Abstract: An ink cartridge with ink level indication for containing dispensable ink is disclosed. The ink cartridge includes a cartridge body and a reservoir for receiving and storing ink within the cartridge body. The reservoir is filled with a porous material member. A window is supported by the cartridge body to be disposed adjacent the porous material member. The window interacts with the porous material member to define porous material member portions of predetermined increasing capillarities. Each portion is able to retain ink therein for viewing through the window depending on its capillarity and the amount of ink in the reservoir to thereby provide an overall indication of the amount of ink in the print cartridge.

Abstract translation: 公开了一种具有用于容纳可分配墨水的墨水量指示的墨盒。 墨盒包括盒体和用于在墨盒本体内接收和储存墨水的储存器。 储存器填充有多孔材料构件。 一个窗口由盒主体支撑以邻近多孔材料构件设置。 窗口与多孔材料构件相互作用以限定预定增加的毛细管的多孔材料构件部分。 每个部分能够根据其毛细管状态和储存器中的墨水量而保持通过窗口观看的墨水，从而提供打印墨盒中墨水量的总体指示。

公开(公告)号：US06523579B1

公开(公告)日：2003-02-25

申请号：US10068820

申请日：2002-02-06

Applicant: Hing Ching Tham

Inventor： Hing Ching Tham

IPC: B65B104

CPC classification number: B41J2/17553 ,  B41J2/17513 ,  B41J2/17559

Abstract: A method of manufacturing an ink jet print cartridge is disclosed. The method includes fabricating a vented foam-filled type or a spring-bag type cartridge. The method also includes introducing ink into a reservoir. For a foam-filled cartridge, the method further includes covering orifices of an orifice plate to prevent leakage of ink through the orifices and subjecting the cartridge to a predetermined centrifugal force to force ink into a standpipe chamber to displace air trapped therein. For a spring-bag type cartridge, the method further includes subjecting the cartridge to a predetermined centrifugal force to force ink away from a standpipe chamber to displace air in a reservoir to force the air to collect adjacent a standpipe and priming the cartridge by drawing the air out of the cartridge through orifices of an orifice plate. A print cartridge manufactured according to the above method is also disclosed.

Abstract translation: 公开了一种制造喷墨打印盒的方法。 该方法包括制造通气的泡沫填充型或弹簧袋式药筒。 该方法还包括将油墨引入储存器。 对于泡沫填充的墨盒，该方法还包括孔板的覆盖孔，以防止油墨通过孔口泄漏并使墨盒经受预定的离心力，以迫使墨水进入立管腔室以置换被捕获在其中的空气。 对于弹簧袋式墨盒，该方法还包括使墨盒经受预定的离心力以迫使墨水远离立管腔室以置换储存器中的空气以迫使空气在立管附近收集并通过绘制 通过孔板的孔将空气吹出。 还公开了根据上述方法制造的打印墨盒。