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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 5797329 | Hot melt ink printer and method printing A printer and a method for printing hot melt ink in which an ink jet is surrounded by an enclosure and including a heater for heating the air within the enclosure. The enclosure has an opening so that the heated air can be directed towards a medium for he... | 08/25/1998 |
| 5522016 | Digitally controlled printing A method and apparatus for performing printing on a substrate on the basis of data representing a pattern composed of a plurality of parallel rows of discrete image elements. In a known manner, successive strips of image elements are formed on the substra... | 05/28/1996 |
| 5371837 | Virtual printer A work station user selects a desired printer default configuration. Thereupon an address exclusively associated with the selected default configuration is appended to the print data sent from the work station to the printer. Default configuration setting... | 12/06/1994 |
| 5350446 | Hot melt impulse ink jet ink with dispersed solid pigment in a hot melt vehicle A novel hot melt ink jet ink is disclosed for use in an impulse ink jet apparatus. The disclosed ink comprises a dispersed solid pigment which is formulated in a wax, or high molecular weight fatty acid or alcohol vehicle to form a hot melt ink which is s... | 09/27/1994 |
| 5347617 | Printer having a multiple scan line printhead controller A printer accesses from a bit mapped raster matrix of an image to be printed, a group of bits corresponding in number to the number of printing elements of the printhead. This group of bits is used to drive the printing elements of the printhead so as to ... | 09/13/1994 |
| 5343226 | Ink jet ink supply apparatus An ink supply apparatus comprises a container for storing ink jet ink having an opening for releasing ink from the container and a valve member mounted in the opening in the container and spring means coupled to the valve member for biasing the valve memb... | 08/30/1994 |
| 5313232 | Method of jetting phase change ink A method of operating a system for jetting phase change ink by effecting a solid-to-liquid phase transition of the ink by elevating its temperature, ejecting a first volume of liquid ink towards a target, lowering the temperature of the ejected ink to cau... | 05/17/1994 |
| 5258774 | Compensation for aerodynamic influences in ink jet apparatuses having ink jet chambers utilizing a plurality of orifices Impulse ink jet apparatus has a plurality of side-by-side chambers extending along a line that is slanted with respect to a direction of scanning relative to a recording medium. Each of the chambers includes a plurality of orifices that are arranged along... | 11/02/1993 |
| 5256192 | Solvent based fluorescent ink compositions for ink jet printing Fluorescent ink compositions and methods for using the ink co positions in drop-on-demand ink jet printers is provided. The fluorescent ink compositions are formulated with an aromatic alcohol, a glycol, a fatty acid, and at least one fluorescent pigment.... | 10/26/1993 |
| 5239316 | Head tend media and system for an ink jet printer A head tending media for cleaning the print head of an ink jet printer. The head tend media having a portion of absorbent material attached to a backing material and being dimensioned to be fed through the normal print media feed mechanism of the printer.... | 08/24/1993 |
| 5239312 | Interlaced ink jet printing A pixel row interlacing method and system, and print head for practicing same, for use with dot-matrix ink jet printers which apply ink to a substrate as elevated temperatures (e.g., phase change ink jet printers), which assures environmentally symmetric ... | 08/24/1993 |
| 5235350 | Pigmented semiconductive hot melt ink and ink jet apparatus employing same Ink jet apparatus including a print head having at least one chamber, an inlet opening to the chamber, and a droplet ejection orifice from the chamber, a transducer coupled to the chamber for ejecting droplets of ink in liquid form therefrom through the o... | 08/10/1993 |
| 5197812 | High accuracy vacuum belt and pinch roller media transport mechanism A media transport mechanism including a high accuracy vacuum belt used in conjunction with a pinch roller assembly. The media transport mechanism includes a vacuum belt supportably wrapped around two sprocket assemblies and a plenum and disposed in facing... | 03/30/1993 |
| 5182572 | Demand ink jet utilizing a phase change ink and method of operating A demand or impulse ink jet ejects droplets of hot melt ink. The hot melt ink is heated from a solid state to a liquid state in the jet prior to the ejection of droplets on demand. The ink is then cooled on striking the target. The ink may contain a wax.... | 01/26/1993 |
| 5181049 | Phase change ink replenishment system In a color printer including a print head for effecting printing with a phase change ink and provided with a reservoir for holding a supply of the ink, an ink replenishment assembly composed of an ink storage device for storing a plurality of pellets of t... | 01/19/1993 |
| 5142296 | Ink jet nozzle crosstalk suppression In an ink jet printer having a plurality of ink jet channels which are individually controllable to produce ink dots on a printing medium, crosstalk is reduced by activating each odd numbered channel in alternation with each even numbered channel, while o... | 08/25/1992 |
| 5130720 | System for driving ink jet transducers and method of operation A drive system for driving the transducers of an ink jet print head. A controller determines transducer activation periods during which one or more selected transducers are to be activated. During each transducer activation period a voltage source is acti... | 07/14/1992 |
| 5070345 | Interlaced ink jet printing A pixel row interlacing method and system, and print head for practicing same, for use with dot-matrix ink jet printers which apply ink to a substrate as elevated temperatures (e.g., phase change ink jet printers), which assures environmentally symmetric ... | 12/03/1991 |
| 5043918 | Multiple bus image controller structure for color page printers A printer control system for controlling the transfer of image data to a printer marking engine, composed of: a main processing unit for controlling the operation of the system; an interface for receiving print data from an external device; a main bus con... | 08/27/1991 |
| 5041161 | Semi-solid ink jet and method of using same The present invention provides a novel ink jet ink which is semi-solid at room temperature. The subject ink combines the advantageous properties of thermal phase change inks and liquid inks. More particularly, the inks of the present invention comprise ve... | 08/20/1991 |
| 5021802 | Thermally reversible sol-gel phase change ink or bubble jet ink Novel impulse ink or bubble jet inks are disclosed which comprise 90-99.9% by weight of aqueous sol-gel medium and 0.1-10% by weight colorant. The inks are thermally reversible sol-gels which are gels at ambient temperatures and sols at temperatures betwe... | 06/04/1991 |
| 4992806 | Method of jetting phase change ink A method of operating a system for jetting phase change ink comprises effecting a solid to liquid phase transition of the ink by elevating its temperature, ejecting a first volume of liquid ink towards a target, lowering the temperature of the ejected ink... | 02/12/1991 |
| 4973980 | Acoustic microstreaming in an ink jet apparatus An ink jet apparatus having a scanning head employing at least one ink jet with a variable volume chamber which includes an ink droplet ejecting orifice, and a transducer, having a length mode resonant frequency, adapted to expand and contract along an ax... | 11/27/1990 |
| 4941405 | Driving mechanism for reciprocating print shuttle A shuttle assembly comprises a first mass, including printheads, connected by springs to a second mass. Both masses are suspended for low friction long-stroke linear oscillation on bearing rollers. A small electromagnetic drive force from a frame-mounted ... | 07/17/1990 |
| 4930684 | Closure strip and method for remanufacturing a toner cartridge and toner cartridge A toner cartridge, the cartridge having a first and second section. A toner material is located in the first section and maintained in the first section by a gasket. The gasket comprises a flexible substrate having attached to one surface thereof, a seali... | 06/05/1990 |
| 4930101 | Microprocessor-controlled meter package for a printer In a line printer, an integrated meter package developing a clock incorporates a microprocessor receiving a line printed signal, power on voltage, and a preset ribbon exhaust count in order to compute in reference to the clock, and selectively display on ... | 05/29/1990 |
| 4901093 | Method and apparatus for printing with ink jet chambers utilizing a plurality of orifices An impulse ink jet apparatus provides bar coding using one or more ink jet chambers having a plurality of orifices in each chamber. A transducer is coupled to each chamber for ejecting droplets from each of the plurality of orifices in the chamber in resp... | 02/13/1990 |
| 4896166 | Replaceable thermal print head assembly A print head assembly includes the feature of snap-in, tool-less replaceability. The print head is intended for an application where extended use is expected and replacement, due to wear, will be necessary by nontechnical users of the printing system. In ... | 01/23/1990 |
| 4873539 | Phase change ink jet apparatus In order to minimize the effects of heating on performance and reliability in a phase change ink jet system, the ink jets comprise a material having a thermal conductivity of at least 0.03 g cal/sec cm2 (°C./cm). The material may comprise stai... | 10/10/1989 |
| 4856923 | Ribbon shield A thin metal ribbon shield for mounting in a standard data processing printer ribbon guide. The ribbon shield has a short insert tab and a long insert tab, and is particularly designed for ease of installation and removal. The thin metal ribbon shield is ... | 08/15/1989 |
| 4849772 | Ink jet printer with front reference platen assembly An ink jet printer having an ink jet printing device for printing characters in a printing region on a surface of a substrate, the device being constructed to effect optimum printing at a predetermined distance from the device, and a device for holding a ... | 07/18/1989 |
| 4840501 | Three pole printhead actuator A magnetic actuator particularly suitable to be arranged in a circular array to form a wire matrix printhead for mosaic, or dot, matrix printing. Each such magnetic actuator of three poles being (1) and "E"-shaped core defining three magnetic poles which ... | 06/20/1989 |
| 4836431 | Semi-automatic loading paper feed tractor A tractor is provided with an endless belt which travels in a triangular path and a drive shaft located well below the level of the paper path. The tractor body has both an inner and outer body portion, each of which contains a journal bearing for support... | 06/06/1989 |
| 4833981 | Field replaceable print hammer A hammer assembly for incorporation in a hammer bank assembly useful in high-speed impact printers of the type generally employed in data processing systems is disclosed to comprise an impact tip carried on a rigid coil structure disposed in a permanent m... | 05/30/1989 |
| 4833486 | Ink jet image transfer lithographic An ink jet image transfer lithographic apparatus is coupled to a source for supplying graphics and textual material to an ink jet printhead. The ink jet printhead melts a hydrophobic solid ink and sprays the ink onto a lithographic plate in a predetermine... | 05/23/1989 |
| 4823146 | Cartridge and method of using a cartridge for phase change ink in an ink jet apparatus An improved cartridge for containing a pellet of hot melt or phase change ink in an ink jet apparatus having at least one ink jet, a reservoir for containing and melting the hot melt or phase change ink from its solid state to a liquid state, and a receiv... | 04/18/1989 |
| 4823149 | Ink jet apparatus employing plate-like structure Impulse ink jets utilizing elongated transducers which expand and contract along the axis of elongation are formed by plates lying in planes parallel with the axis of elongation. The plates containing the chamber also include a drive portion for coupling ... | 04/18/1989 |
| 4822418 | Drop on demand ink jet ink comprising dubutyl sebecate A novel ink jet composition for use in drop on demand ink jet printers is disclosed comprising 85-99 weight percent of a vehicle consisting essentially of dibutyl sebacate and oleic acid. In the preferred embodiment, the dibutyl sebacate comprises between... | 04/18/1989 |
| 4809024 | Ink jet head with low compliance manifold/reservoir configuration An ink jet apparatus has a manifold and a feed tube of substantially the same cross-sectional areas as the manifold, thereby connecting the manifold with an ink reservoir so as to effectively present the large compliance characteristic of the reservoir at... | 02/28/1989 |
| 4796202 | Speeding mapping of print characters in a microprocessor controlled bank printer Four microprocessors type Intel 8051 collectively map one print buffer containing 136 ASCII character codes, each of a nominal 64 different types, into the control of 136 print hammers at an associated 136 columnar print positions. The print hammers are c... | 01/03/1989 |
