Matches 201 - 249 out of 249 < 1 2 3 4 5
Match Document Document Title
5107281 Ink jet recording head having means to remove stagnant bubbles  
An ink jet recording head having a discharge port for discharging ink therethrough comprises a liquid path communicating with the discharge port having a portion in which energy available for...
5105209 Hot melt ink jet printing apparatus  
An ink jet printing apparatus in which the ink jet print head is constructed to eliminate problems caused by air bubbles that can be present in fluid hot-melt ink. The apparatus head includes a...
5072235 Method and apparatus for the electronic detection of air inside a thermal inkjet printhead  
A detection circuit for detecting the existence of non-collapsing bubbles in the ink cells of a thermal inkjet printhead is connected to a heater element of an ink containing cell. The detection...
4995940 Method for forming a gas removing device for an ink jet system  
In the particular embodiment of a device for removing dissolved gas from ink described in the specification, an elongated ink path leading to an ink jet head is formed between two permeable...
4961082 Deaeration of ink in an ink jet system  
In the particular embodiment of an ink deaerator described in the specification, an elongated ink path leading to an ink jet head is formed between two permeable membranes. The membranes are backed...
4948427 Process for preparing ink for ink jet printer  
In a process for preparing an ink for a drop-on-demand type ink jet printer, sonic vibration is applied to the ink which is being prepared or has been prepared so that a gas entrained into the ink...
4947184 Elimination of nucleation sites in pressure chamber for ink jet systems  
In the particular embodiments of the invention described in the specification, the pressure chamber for an ink jet system is coated with a smooth, conforming layer of a coating material, such as a...
4940995 Removal of dissolved gas from ink in an ink jet system  
In the particular embodiment of a device for removing dissolved gas from ink described in the specification, an elongated ink path leading to an ink jet head is formed between two permeable...
4937598 Ink supply system for an ink jet head  
In the representative ink supply system described in the specification, continuous circulation of ink in an ink jet head is accomplished by providing two reservoirs connected to each ink jet...
4931811 Thermal ink jet pen having a feedtube with improved sizing and operational with a minimum of depriming  
An ink jet pen having a main ink reservoir therein connected to a thin film printhead by way of a large diameter standpipe, wherein the diameter of an air accumulating section of the standpipe is...
4882595 Hydraulically tuned channel architecture  
The use of lumped resistive elements (28) in an ink feed channel (10) between an ink-propelling element, such as a resistor, (12) and an ink supply plenum (14) provides a means of achieving...
4843407 Fluid distribution bar for fluid-jet printing  
A fluid distribution bar has a plurality of superposed channels with the lower channel in communication with an orifice plate for issuing fluid droplets for deposition on a substrate. The bar is...
4794410 Barrier structure for thermal ink-jet printheads  
A three-sided barrier structure (22), comprising three walls (24a-c), is provided in conjunction with a resistor (10) used in a thermal ink-jet printhead. Placement of the structure less than about...
4737801 Ink supply device and an ink jet recording apparatus having the ink supply device  
An ink jet recording apparatus has a recording head for discharging ink and effecting recording, a recording flow path communicating the recording head with one end of a first ink tank, a pump side...
4727378 Method and apparatus for purging an ink jet head  
An ink jet head 10 has an ink chamber 14 which receives ink from an ink inlet passageway 38. Pressure pulses applied to the ink chamber cause the ejection of ink drops from an ink drop forming...
4689641 Ink jet printing head  
One or more printing elements in tube form with a capillary nozzle at one end are mounted in aligned and mutually parallel relationship with a cavity in a support. The printing elements have...
4673955 Ink receptacle for ink jet printer  
An ink receptacle for an on-demand type ink jet printer in which an ink reservoir for storing ink which is to be ejected from an ink jet head is mounted on a carriage. A relatively thick flat...
4658273 Wall member for ink liquid reservoir mounted on a carriage in an ink jet system printer  
An ink liquid supply system for an ink jet system printer including a printing head comprises an ink liquid reservoir for containing ink liquid, an ink liquid passage for supplying the ink liquid...
4646105 Liquid jet recording method  
A liquid jet recording method using a recording head provided with a liquid jet part comprising an orifice through which the liquid is jetted to form a flying liquid droplet and a heat action...
4609925 Method for removing air bubbles or solid impurities from the printing head of a drop-on-demand type ink jet printer  
An ink jet printer wherein a mechanical vibration is applied by an electromechanical transducer secured to a printing head to the ink in a nozzle and a pressure chamber of the printing head when...
4593296 Ink jet printer with gas evacuating arrangement  
An ink jet printer has a chamber for the evacuation of gases which form during the printing operation, the chamber having an associated Venturi pump acting as a vacuum source. The electrical...
4586058 Ink jet printing apparatus  
An ink jet printing apparatus capable of removing bubbles introduced into ink which is routed from an ink supply cartridge to a plurality of nozzles. A head holder adapted to support a head, which...
4536777 Liquid jet recording apparatus  
In a liquid jet recording apparatus comprising a liquid jet section including orifice means for discharging a liquid to form flying droplets and liquid path means communicating with said orifice...
4518974 Ink jet air removal system  
An ink jet printing system for printing an image in the form of dots produced by ink droplets on a recording medium is provided. The present ink jet printing system is characterized by detecting...
4502055 Ink jet deaeration apparatus  
An apparatus for removing air from ink which is fed under pressure to a nozzle of an ink ejection head is disclosed. A first solenoid-operated valve is disposed between an ink pressurizing source...
4498088 Ink jet air bubble detection  
An air bubble detection system is provided for detecting air bubbles contained in an ink liquid disposed in a printer head of an ink jet system printer of the ink on demand type. The air bubble...
4489334 Immersible oxygen absorbing capsule for ink jet fluid supply  
An oxygen absorbing capsule containing an oxygen absorbing material for use in an ink jet printing device is provided. The capsule wall is formed of a resinous material insoluble in the ink...
4476472 Bubble removal in an ink liquid supply system of an ink jet system printer  
A combined ink cartridge/bubble removing device is detachably secured to an ink liquid supply system for an ink jet system printer of the charge amplitude controlling type. The combined ink...
4466005 Air bubble removing system in a printer head of an ink jet system printer of the ink on demand type  
An air bubble removing system is provided in an ink jet system printer of the ink on demand type for removing air bubbles contained in a pressure chamber of a printer head of the ink jet system...
4460904 Ink jet ink handling system  
An ink handling system in an ink jet printer. In accordance with the invention an ink handling system is constructed including two ink processing loops. A first relatively low-volume, high pressure...
4454518 Temperature control of ink for ink jet printer  
The ink fluid in a reservoir is heated to establish a temperature differential between the ink fluid therein and the ink flowing through a print head and being ejected therefrom in the form of ink...
4424521 Ink jet apparatus and reservoir  
An ink jet array comprises a plurality of ink jet chambers having inlets coupled to a reservoir. In order to promote priming, the reservoir is concave with the inlets to the chamber coupled into...
4403229 Maintenance system to prime and to exclude air from ink jet heads  
The ingestion of air into the print head of an ink jet printer is controlled by a secondary fluidic system. The secondary fluidic system interconnects the ink supply cavity of the head with the...
4380770 Ink jet printer  
An ink jet printer includes pumped-forced circulation of ink through the printer head and a nozzle cap which together eliminate gas from the ink supply and overcome ink stagnation which adversely...
4368478 Ink supply system for ink jet printers  
An ink supply system for an ink printer. The system includes an ink cartridge which supplies ink through a conduit to the print head of the printer. A bubble trapping device is disposed along the...
4368477 Arrangement for a printing head in ink mosaic printing devices  
A printing head for an ink mosaic printing device is provided with a plurality of diagonally extending ink ducts having downstream ends converging at a printing location on the printing head to...
4340895 Degassing ink supply apparatus for ink jet printer  
Means are disclosed for degassing a liquid ink used in an ink drop printer. The printer is the type wherein continuously generated drops are directed to a target with some being diverted from a...
4336037 Continuous deaeration system for a fluid pump system  
A continuous deaeration system for a fluid pump system includes a housing having an inlet port through which aerated fluid flows into the housing from a pump, an outlet port through which aerated...
4323908 Resonant purging of drop-on-demand ink jet print heads  
The object of this invention is to purge any entrapped air from the ink cavity (17) and nozzle orifice (15) of the print head (10) of a drop-on-demand ink jet printer. Purging is accomplished...
4320407 Fluid pump system for an ink jet printer  
A fluid pump system for an ink jet printer apparatus includes a reservoir of printing fluid, a filter for removing contaminants from the printing fluid, and an apparatus for printing characters...
4312010 Ink jet printer  
An ink jet printer comprising conical pressure chambers (2). The pressure chambers have to be filled with ink without inclusion of bubbles. To this end, the pressure chambers (2) are constructed as...
4303929 Air purging pump for ink jet printers  
Disclosed is an ink system for an ink jet printing apparatus having a replaceable ink bottle ink supply and a receptacle for receiving the ink bottle for coupling of the bottle to the ink system of...
4301459 Ink ejection apparatus comprising entrained air removal means  
An air removal unit (36) is disposed in a conduit (35) leading from an ink reservoir (34) to an ink ejection head (37). The amount of entrained air in the ink in the head (37) is sensed, and a...
4293867 Device for removing air bubbles formed and trapped in ink chamber of print head of ink-jet printer  
A device for removing air bubbles formed and trapped in an ink chamber of an ink-jet print head, said device comprising a means for sensing the existance of air bubbles in the ink chamber, a means...
4153902 Bubble removal in an ink liquid supply for an ink jet system printer  
The present invention is directed to an ink liquid supply system wherein a subtank is interposed between an ink liquid reservoir and a pump in the ink liquid supply system for an ink jet system...
4149172 Ink supply system for piezoelectrically operated printing jets  
Ink supply system for supplying a stream of ink from an ink reservoir to a piezoelectrically operated printing jet of an ink jet printer. The system includes a conduit interconnecting the reservoir...
4126868 Air venting device for ink supply systems of ink mosaic printers  
An air venting or bleed device for the ink supply systems of ink jet printer unit in which individual printing jets are connected through a distributor arrangement and supplied with printing liquid...
4015272 Ink ejection type writing unit  
A writing unit for applying fluid droplets to a surface includes a chamber which is divided into an outer chamber portion and an inner chamber portion which are connected by a connecting channel. A...
3708798 INK DISTRIBUTION FOR NON-IMPACT PRINTING RECORDER  
A collapsible ink bag supplies ink at constant pressure through a manifold containing an air bubble trap, capable of venting, which manifold is connected in common to plural lines to a multiple...
Matches 201 - 249 out of 249 < 1 2 3 4 5