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| Number | Title | Issue Date |
| 6749294 | Keying methods and apparatus for inkjet print cartridges and inkjet printers An inkjet printer and inkjet print cartridge are each especially configured for inter-engaging with one another via a plurality of keying features of the cartridge and keying structures of the printer such that loading of a foreign print cartridge into the printer i... | 06/15/2004 |
| 6739711 | Ink cartridge An ink cartridge including an ink storage chamber in which ink is stored, a cover to cover the upper portion of the ink storage chamber and a head to eject ink droplets in the ink storage chamber onto a recording medium, wherein the cover includes an inner cover to ... | 05/25/2004 |
| 6739712 | Ink cartridge with pressure-controlling module An ink cartridge with a pressure-controlling module. The ink cartridge includes an ink reservoir in which ink is stored, a printhead through which ink from the ink reservoir is ejected onto a printing medium in a droplet shape, and a pressure-controlling module whic... | 05/25/2004 |
| 6733118 | Side plug for an ink-jet cartridge, and cartridge assembly methods A side plug for an ink-jet cartridge body, and methods of attaching the side plug to the cartridge body, are disclosed. The side plug seals a mold access hole in the cartridge body. The side plug is preferably formed of a carbon fiber filled PET (Polyethylene Tereph... | 05/11/2004 |
| 6733117 | Pressure adjustment chamber, ink-jet recording head having the same, and ink-jet recording device using the same The present invention discloses an elastic transformable body for adjusting vapor pressure, a vapor pressure adjustment chamber using the same, an ink-jet recording head having a vapor pressure adjustment device and an ink-jet recording device having the recording h... | 05/11/2004 |
| 6722763 | Inkjet pen and pressure control device thereof An inkjet pen and a pressure control device thereof. The inkjet pen comprises a body, a bag, a pressure plate, an abutting member, and a rib. The body includes a bubble generator. The bag is disposed inside the body, and communicates with the external environment so... | 04/20/2004 |
| 6719418 | Underpressure regulating mechanism for inkjet pens An inkjet pen including an ink reservoir for storing ink and providing ink for jetting. A port, located on top of the ink reservoir, fluid-communicated with the ambient air, is used for adjusting the air pressure inside the reservoir. A valve, operated by a spring o... | 04/13/2004 |
| 6719408 | Liquid ejecting head, head cartridge, and liquid ejecting and recording apparatus In a liquid ejecting head having a first liquid flow path communicating with an ejecting port for ejecting a liquid to be ejected and an element substrate having a heating element for forming a bubble from a bubble forming liquid as well as including a second liquid... | 04/13/2004 |
| 6715865 | Liquid jet recording head packing method, liquid jet recording head and liquid jet recording apparatus A liquid jet recording head packing method can effectively suppress the problem of leakage of liquid from a liquid jet recording head due to expansion of the liquid and/or the gas in the liquid chamber when the liquid jet recording head that is provided with a chamb... | 04/06/2004 |
| 6713022 | Devices for biofluid drop ejection A biofluid drop ejection unit for ejecting biofluid drops. A biofluid drop ejection mechanism of such a unit includes a transducer, which generates energy used to emit the biofluid drop. Further provided is a reagent cartridge or biofluid containment area which hold... | 03/30/2004 |
| 6705711 | Methods, systems, and devices for controlling ink delivery to one or more print heads A printing system includes a printing device fluidly communicating with a main ink reservoir and a vacuum pump. The main ink reservoir refills one or more reservoirs mounted within the printing device when the ink contained therein falls below a defined tolerance le... | 03/16/2004 |
| 6705715 | Liquid container, cartridge including liquid container, printing apparatus using cartridge and liquid-discharge printing apparatus A liquid container which can precisely detects existence/absence of residual liquid at a low cost, a cartridge including the liquid container, and a printing apparatus using the cartridge. The lengthwise direction of a triangular prism provided on the bottom of the ... | 03/16/2004 |
| 6702436 | Fluid ejection cartridge including a compliant filter A fluid ejection cartridge includes a fluid container that has both a fluid inlet and a fluid outlet. The fluid ejection cartridge has one or more fluid ejectors fluidically coupled to the fluid container outlet and a fluid valve fluidically coupled to th... | 03/09/2004 |
| 6698871 | Ink-contacting member, ink-absorbing member, ink tank and ink-jet cartridge, and ink-jet recording apparatus using the same Disclosed herein is an ink-contacting member used in an ink-jet recording apparatus, which comprises, as a principal component, a polyolefin obtained by adding a hydrotalcite-like compound as a neutralizer.... | 03/02/2004 |
| 6692120 | Pressure regulation apparatus for ink reservoir A pressure regulation apparatus for an ink reservoir is provided. The apparatus includes: an elastic bag mounted in the ink reservoir for freely passing an ambient air of an ambient environment outside the ink reservoir in and out the elastic bag, wherein... | 02/17/2004 |
| 6688718 | Heat transfer device for an inkjet printer This present invention is embodied in a printing system with thermally efficient heat transfer capabilities for reducing dimpling of a nozzle member during fabrication of the printhead portion of an inkjet printer. The printing system of the present inven... | 02/10/2004 |
| 6685310 | Ink-jet recording apparatus Ink supplied from an ink tank via a tube and air bubbles contained in the ink are stored in a first chamber of an air trap unit. At recording operation, the ink is allowed to flow from the first chamber to a third chamber via a filter disposed therebetwee... | 02/03/2004 |
| 6682185 | Liquid drop jet head, ink cartridge and ink jet recording apparatus A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part ... | 01/27/2004 |
| 6679595 | Ink jet recording apparatus An ink jet recording apparatus includes an ink jet head, a body frame, and a cover plate. The ink jet head has a plurality of nozzles that eject ink onto a recording medium, a plurality of pressure chambers provided in association with the nozzles, and a ... | 01/20/2004 |
| 6679574 | Means for and method of detecting the state of ink remain in a cartridge having containing portions differing in ink containing state The present invention has as its object to detect the termination of ink reliably and highly accurately in an ink jet recording apparatus. An ink cartridge 2 has an opening 5 for connection to a recording head 1, and is include of a negative pressure gene... | 01/20/2004 |
| 6676253 | Air pressure regulating device for ink cartridges An air pressure regulating device for ink cartridges that is not affected or interfered with by magnetic fields. In accordance with the invention a ventilating vent is settled inside the ink cartridge so that the inside region of the ink cartridge is open... | 01/13/2004 |
| 6666550 | Ink cartridge An ink cartridge for storing ink to be supplied to an ink-jet head includes a porous member that absorbs the ink, a porous member storage chamber that accommodates a porous member therein, and an ink chamber that stores the ink supplied from the porous me... | 12/23/2003 |
| 6663220 | Ink jet printer A discharge port is formed in a bottom surface of ink tank. The ink tank is made to communicate with a waste ink tank by connecting the discharge port to the waste ink tank in a position lower than the discharge port, and a part of connection member is op... | 12/16/2003 |
| 6663235 | Coverlayer based on functional polymers In one embodiment of the invention, a structure for preventing ink shorting of conductors connected to a printhead is provided. The structure includes a layer of insulating material shaped to at least partially encapsulate the conductors on the printhead.... | 12/16/2003 |
| 6663233 | Inkjet printing apparatus and ink supplying method In a structure which includes a second tank for reserving a predetermined amount of ink to be supplied to a printing head and in which a supply system is configured such that ink is intermittently supplied to the second tank from a first tank, a high char... | 12/16/2003 |
| 6655794 | Methods and apparatus for curing a thermal sealing material using a heater trace Methods and apparatus are provided for forming a seal between two or more components using a thermally cured sealing material. One exemplary method includes selectively applying an electrical signal to a heating trace on a first component, applying a seal... | 12/02/2003 |
| 6644795 | Pressure control device for an inkjet pen A pressure control device for an inkjet pen. The inkjet pen is provided with a reservoir having a first opening and maintaining a back pressure established therein. The pressure control device comprises a bag, a pressure plate, an isolation member, a bias... | 11/11/2003 |
| 6634742 | Recording head unit Ink flow paths are formed that corresponds in number to the ink chambers of a mounted ink cartridge, to supply ink from the ink chambers to a recording head. These ink flow paths are constituted by first communication paths (59, 60), which communicate wit... | 10/21/2003 |
| 6619344 | Device for filling an ink cartridge A device for filling an ink cartridge, particularly a refilling device for filling ink cartridges of ink-jet systems, such as printers and plotters, or other automatic registering, writing or drawing apparatus, includes a refilling container and an ink ca... | 09/16/2003 |
| 6616272 | Pressure control device A pressure control device installed inside an ink reservoir. The ink reservoir further includes a pressure regulator. The pressure control device at least includes a nozzle stand, a plugging block and a spring-loaded structure. The nozzle stand is attache... | 09/09/2003 |
| 6609790 | Ink jet apparatus and ink jet cartridge and ink container mountable thereto An ink jet head cartridge includes a recording head for ejecting ink; an ink container for containing the ink to be supplied to the recording head; an air venting opening for communication between the container and ambience to allow supply of the ink from... | 08/26/2003 |
| 6604814 | Arrangements of interconnect circuit and fluid drop generators An ink jet print cartridge having a compact electrical interconnect structure that includes a plurality of pairs of columnar arrays of electrical contact areas disposed on a rear wall of the print cartridge and electrically connected to a plurality of arr... | 08/12/2003 |
| 6578956 | Ink jet recording head and ink jet recording apparatus A ink jet recording head has a discharge port forming member, an ink supply member for supplying ink into the discharge port forming member from an ink container, an ink discharge port formed by the discharge port forming member, and discharge pressure ge... | 06/17/2003 |
| 6568801 | Pressure-compensation device A pressure-compensation device for adjusting the backpressure inside the cartridge of an ink jet printer includes an accumulator bag, a resilient element, and a motion element. The accumulator bag, installed inside the cartridge, communicates with the ext... | 05/27/2003 |
| 6557989 | Print head and ink jet printing apparatus Disadvantages relating to ink refill specific to an increase in a number of ink ejection openings in an ink jet print head is eliminated to provide a particularly excellent fast-response capability and ejection performance. More specifically, when an ink ... | 05/06/2003 |
| 6554413 | Ink supply mechanism, ink jet cartridge having the ink supply mechanism installed thereon, and ink jet recording apparatus An ink supply mechanism, which is provided with an ink supply path to supply ink contained in an ink container to an ink jet recording head for recording images on a recording medium by discharging ink from discharge ports, comprises agitating means provi... | 04/29/2003 |
| 6543887 | Inkjet print head A common print head module that can accommodate either a single-color or multi-color inkjet print head comprises an ink cartridge having an ink output, and an inkjet chip arranged over the ink output. The ink cartridge internally includes ink channels tha... | 04/08/2003 |
| 6543878 | Printhead cartridge with wiper cleaning station A transaction printing device having a base with a width dimension of no greater than about 6.5 inches includes a printhead cartridge stall coupled to the base and mounted for rectilinear movement along a path of travel along the width dimension of the pr... | 04/08/2003 |
| 6543872 | Ink-jet printing method and apparatus for printing with inks of different densities It is checked whether an ink used in a printhead has a high density. The type of a printing medium used for a print operation is also identified. An image is printed by scanning the printhead once or a plurality of times. When a print operation is to be p... | 04/08/2003 |
| 6536870 | Ink jet recording cartridge, method for manufacturing ink jet recording cartridge, apparatus for manufacturing ink jet recording cartridge, and recording apparatus An ink jet recording cartridge mounted on a movable carriage comprises an ink jet recording head for recording by discharging ink from the discharge ports to a recording medium, and a housing for holding the ink jet recording head. For the housing of this... | 03/25/2003 |
