Matches 101 - 150 out of 249 < 1 2 3 4 5 >
Match Document Document Title
6331055 Inkjet printhead with top plate bubble management  
An ink jet printhead is provided with an orifice plate connected to the barrier layer, spaced apart from the substrate second major surface, enclosing the ink manifold, and defining a plurality of...
6331050 Liquid ejecting head and method in which a movable member is provided between flow paths, one path joining a common chamber and ejection orifice, the other, having a heat generating element  
A liquid ejecting head ejects liquid by generating a bubble. The head includes a first liquid flow path for direct fluid communication between a first common liquid chamber and an ejection outlet,...
6325484 Method of removing air bubbles from ink supply passage in ink jet recording apparatus and ink jet recording apparatus capable of employing said method  
An air-communicated opening (8a) of an ink cartridge (8) connected to an ink jet recording head (7) is sealed to apply negative pressure from the suction device (11) to the recording head (7)...
6312119 Method and apparatus for foam removal in an ink container  
An apparatus for removing foam from an ink container of a printer including a nozzle disposed within the ink container such that the nozzle floats upon a surface of the ink located within the...
6296351 Ink jet recording head with narrowed reservoir ends  
In order to ease the discharge of air bubbles stagnated in end portions of a reservoir in an ink jet recording head, the end portions of the reservoir are so formed that the widths thereof are...
6283584 Ink jet flow distribution system for ink jet printer  
The invention provides a flow feature structure for an ink jet printer. The structure includes a polymeric nozzle plate having a nozzle plate thickness, the nozzle plate containing a plurality of...
6276790 Hot melt ink jet print head and purging method in the head  
A tank heater 10 has a DC heater 17b and an AC heater 17a, and a front heater has a DC heater 33x and a DC heater 33y. The DC heater 17b and the DC heater 33x are normal heaters which heat and keep...
6270211 Bubble elimination and filter tower structure  
A printhead apparatus for filtering ink which includes an elongate open-ended trough having a bottom wall and opposing end walls and opposing side walls attached to the bottom wall, an ink exit...
6267251 Filter assembly for a print cartridge container for removing contaminants from a fluid  
A filter is provided for filtering contaminants from a fluid passing through the filter. The filter comprises a silicon substrate having opposing first and second surfaces and a passage extending...
6257715 Ink jet printer with ink conduit gas exhaust facility and method  
An ink jet printer has a body with a paper path and a carriage operable to reciprocate across the paper path. An ink supply receptacle on the body is spaced apart from the carriage, and an ink...
6257694 Ink jet printer  
An ink jet printer serves to solve a problem that ink is not normally discharged when bubbles are present in ink contained in a ink chamber of a print head. The ink jet printer performs normal...
6257714 Method and apparatus for removing air from an inkjet print cartridge  
Method and apparatus for removing air from an inkjet print cartridge by collecting the air in a predetermined area and forcing the air from the air collection area using a conduit.
6250752 Ink supply device and ink-jet recording head with filter and shaped flow passage  
An ink supply device having an ink flow passage for communicating an ink containing part for containing an ink with a discharge part for discharging the ink, the ink flow passage is characterized...
6247782 Ink jet recording device capable of reliably discharging air bubble during purging operations  
An ink jet head 31 is formed with two rows of plurality of ejection channels 33 through which ink droplets are ejected. A manifold 40 is formed with an ink supply path 43 which fluidly connects the...
6241350 Ink jet printing head and printing apparatus using same  
An ink jet print head includes ink ejection outlets for ejecting ink, passages communicating with the ejection outlets; a common chamber for supplying the ink to the passages; ejection energy...
6234621 Foamless ramps for controlling the flow of ink to eliminate foam in an ink tank  
An ink tank apparatus having a reservoir for containing ink, is improved to control or eliminate the harmful effects of foaming, misting and splatter of ink in the ink tank. A fluid pump delivers...
6213596 Method and apparatus for reducing entrained air in ink for ink jet cartridges used in ink jet printers  
A method and apparatus for reducing the amount of air entrained in ink of ink jet printer cartridges especially during filling of the ink cartridge is disclosed. The method includes providing ink...
6209982 Ink jet recording device capable of reliably discharging air bubble during purging operations  
A manifold 40 is formed with an ink supply path 43, which fluidly connects an ink cartridge 50 and ejection channels 33 of an ink jet head 31. The ink supply path 43 has a broad portion 45 that...
6190008 Bubble remover for inkjet head and method for removing bubbles thereof  
When bubbles affecting the performance of spitting ink are generated in an ink reservoir, the bubbles are completely removed to attain a state full of ink without bubbles of the ink reservoir. An...
6183078 Ink delivery system for high speed printing  
Disclosed is an ink delivery system for high throughput commercial inkjet printing devices. The ink delivery system includes a high speed ink ejection printhead with a large number of nozzles and...
6176573 Gas-flow management using capillary capture and thermal release  
A control device for regulating the flow of gas through a liquid utilizes capillary forces to manage gas retention and utilizes thermal energy to execute a gas release operation. A capillary path...
6174049 Bubble jet head and bubble jet apparatus employing the same  
Each of branched ink supply passages 42ai to 42an and 42bi to 42bn in a driving substrates 32 is constituted of a parallel passage portion 46a and a narrow passage portion 48a. An ink from an ink...
6158855 Ink jet head and ink jet recording apparatus having same  
An ink jet head for ejecting ink includes an ink passage for supplying ink from an ink container for containing ink; a filter chamber in the ink passage, the filter chamber containing therein a...
6155679 Air-liquid separating chamber and ink jet printer provided with the same  
A separation promoting member comprises container having the bottom surface, an introduction side cylinder having slits or small holes and a discharge side cylinder having slits or small holes. The...
6139138 Bellows system for an ink jet pen  
The invention relates to a device for removing air or gas bubbles from a ink jet pen. The device includes a gas accumulation chamber attached to an ink cartridge and a gas inlet port in flow...
6139133 Ink jet head for ejecting ink by exerting pressure on ink in ink channels  
An ink jet head has nozzles and ink channels connected to the nozzles. Side walls of the ink channel are formed from a piezoelectric material, and vary the capacity of the ink channel to eject ink...
6132034 Ink jet print head with flow control contour  
An ink jet print head with a substrate defining an ink aperture. A two-elevation structure in an ink manifold acts to urge coalescing bubbles away from ink energizing elements. A number of ink...
6123469 Ink-supply wire dot matrix printer head  
An ink-supplied wire dot matrix printer head for actuating wires with ink attached to tip ends thereof into contact with a sheet of print paper to transfer ink to the sheet, thereby forming ink...
6120139 Ink flow design to provide increased heat removal from an inkjet printhead and to provide for air accumulation  
Disclosed is a printing device that overcomes the thermal problems of previous printheads caused by heat generation by providing better cooling of the printhead,avoids bubble accumulation near the...
6113223 Ink jet recording head with ink chamber having slanted surfaces to aid bubble removal  
An ink jet recording apparatus includes a liquid passage for ejection of ink; a liquid chamber for supplying ink to the passage; a device for mounting the recording head on the ink jet recording...
6109734 Ink-jet head, ink-jet apparatus and method of filling buffer chamber with bubbles  
An ink jet head having a buffer chamber which absorbs any back-pressure wave generated as a result of generation of back wave, thereby preventing reduction of refilling with ink. Exothermic...
6109744 Asymmetric restrictor for ink jet printhead  
An ink jet comprises a restrictor with an asymmetrical opening that creates a vortex in the ink flowing into an ink jet chamber. The vortex is created as the ink in an ink manifold is transferred...
6089702 Method and apparatus for degassing ink utilizing microwaves  
An apparatus and method for degassing liquid ink utilizes microwaves. An ink degassing unit includes a microwave heater that heats the liquid ink in an ink line passing through the microwave...
6062681 Bubble valve and bubble valve-based pressure regulator  
A bubble valve that comprises a liquid delivery channel and a localized heating arrangement. The liquid delivery channel includes an upstream portion and a constriction downstream of the upstream...
6059405 Ink-jet recording apparatus  
An ink container contains main tanks into which ink can be poured from the outside and the ink in the main tanks is supplied to recording heads via deaerators incorporating hollow fibers to which...
6056395 Device to prevent from ink interruption in a printing head of an ink cartridge in a printer  
A device for preventing from ink interruption in a printing head of an ink cartridge in a printer; the prime feature thereof is to suck out air in a second chamber of a printing head after the ink...
6050682 Air removal apparatus for print cartridge  
In one embodiment, an air purge apparatus includes a bellows, or any other pressure source, for pressurizing a flexible diaphragm internal to a regulator-based inkjet print cartridge. This opens a...
6042226 Apparatus and method of priming ink supply tubes in an ink jet printer  
An ink jet printer with a body with a paper path and a carriage operable to reciprocate across the paper path. The printer body has an ink supply receptacle spaced apart from the carriage, with an...
6039437 Ink-jet head and ink-jet printing apparatus incorporating the same  
An ink-jet head reduces bubbles retained in a liquid chamber and restricts growth of the bubbles, for facilitating recovery operation. Also, the ink-jet head makes a substrate, on which the...
6039443 Apparatus and method of priming ink supply tubes in an ink jet printer  
An ink jet printer with a body defining a paper path and a carriage operable to reciprocate across the paper path. An ink supply receptacle on the body is spaced apart from the carriage, and an ink...
6036305 Ink cartridge with residual ink retaining structure  
An ink cartridge connectable to a print head having a supply pipe which receives a supply of ink includes a casing having a first, upper chamber and a second, lower chamber communicating with each...
6037955 Microfluidic image display  
A microfluidic display apparatus responsive to an image file for displaying a plurality of colored pixel, having at least one color for each pixel includes at least one fluid display chamber for...
6019464 Ink jet recording head  
An ink jet recording head is disclosed. The recording head comprises a reservoir for storing ink which is supplied into a plurality of pressure generating chambers arranged in a first direction, a...
6007193 Method and apparatus for removing air bubbles from hot melt ink in an ink-jet printer  
In the ink jet printer using hot melt ink, a heater is provided for overheating hot melt ink in the ink supply channel. The collector is provided for collecting air bubbles generated when the hot...
6003986 Bubble tolerant manifold design for inkjet cartridge  
In a inkjet print cartridge ink flows from the reservoir around the edge of the silicon substrate before being ejected out of the nozzles. During operation, warm thermal boundary layers of ink form...
6000792 Ink jet apparatus provided with an improved recovery mechanism  
An ink jet recording apparatus includes a recording head having discharging ports which discharge a recording liquid, a capping device capable of being mounted on the recording head, a pressure...
5988806 Method for separating and purging gases from a free-ink ink-jet pen  
An apparatus and method for removing air or other gases from a free-ink ink-jet pen is provided in a manner that does not waste ink or require disposal of purged ink. A gas separation and purge...
5971527 Ink jet channel wafer for a thermal ink jet printhead  
An ink jet channel wafer for an ink jet printer has a first surface in which a plurality of anisotropically etched ink channels and an anisotropically etched ink reservoir are directly connected to...
5969739 Ink-jet pen with rectangular ink pipe  
An ink-jet pen is disclosed that has a body of resilient felted polyurethane foam mounted in an ink chamber for ink retention and backpressure. A rectangular ink pipe extends from a bottom wall of...
5963239 Ink jet recording apparatus and ink supply member therefor  
An ink jet recording apparatus and printer whereby air bubbles in the ink supply path are easily expelled even where a stagnation point or flow boundary is formed within the ink jet recording...
Matches 101 - 150 out of 249 < 1 2 3 4 5 >