Abstract: An ink cartridge has a body having a stepped configuration including a first top wall and a second top wall, wherein the second top wall is lower than the first top wall. A lid has a first position selectively secured to the first top wall and a second portion is secured to the second top wall which forms a ledge for removing the cartridge from a printer. Alternately, a tab extends from a surface of the lid for removing the cartridge from a printhead. Another alternative is indentations formed in the lid and side walls of the cartridge for manually gripping the cartridge for removal from a printhead.

Abstract: The invention relates to a multiple pass printing process for generating MICR-readable indicia using a MICR ink-jet ink composition with a magnetic pigment loading less than that needed to generate the nominal signal level according to the ANSI standard with single pass printing, and to a printed substrate, prepared by the process, which bears MICR-readable indicia having at least two layers of the MICR ink-jet ink composition and which demonstrates a MICR signal level of greater than or equal to the nominal signal value according to the ANSI standard.

Abstract: An ink container shell for an ink jet cartridge has spaced apart side walls, a front wall, a rear wall, and a bottom wall, a partition in said shell dividing the interior thereof into first and second chambers for respectively receiving an ink and an ink absorbing material, an opening through the partition for communicating ink in said first chamber with ink absorbing material in the second chamber, and which has a height greater than its width. The shell further includes an outlet port in the bottom wall of the second chamber provided with a wick retaining arrangement, and a block of ink absorbing material in the second chamber having an angled surface facing the opening through the partition and having an area greater than the area of the opening. A lever and tongue component for releasably interengaging the container with a holder therethrough has smooth surfaces and edges to facilitate handling of the container.

Abstract: An ink container for an inkjet cartridge comprises spaced apart side walls, a front wall, a rear wall and a bottom wall, and a partition dividing the interior into three ink chambers. Each chamber includes an outlet port in the bottom wall, and the front wall and bottom wall lie in generally perpendicular planes, and a planer guide wall extends between and at an angle to the front and bottom walls. Each chamber contains a block of ink absorbent material and a felt filter pad between the corresponding block and outlet port, and the container further includes a cover having a flat upper surface provided with serrations to enhance gripping the container.

Abstract: An ink container shell for an ink jet cartridge has spaced apart side walls, a front wall, a rear wall, and a bottom wall, and is provided with a partition structure which divides the interior thereof into three ink chambers, at least one of which has a non-rectangular profile in cross-section transverse to said side, front and rear walls. The partition structures enable varying the volumes of the ink chambers with respect to a given shell exterior profile and enable isolating two the chambers from one another by interposing the third chamber therebetween.

Abstract: A flow resistance measuring or black-pressure tester is provided for ink cartridges. A syringe pump extracts fluid at a desired flow rate from an outlet port of an ink cartridge. An ink removal device allows a user to selectively purge air from the system to improve the accuracy of the meassurements. A variety of flow rates are measured to collect as benchmark data and allow new designs to be similarly sized, specified, and materials and pathways selected to control fluid delivery in replacement ink cartridges.