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President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 5129748 | Compact printer having sheet and tractor media selections A sheet or tractor media handling system for a compact printer having a housing, a cut-sheet supply station and a rotatable print platen constructed and located to feed top sheets from said supply station through a print path ingress past a print zone and... | 07/14/1992 |
| 5105205 | Continuous ink jet catcher device having improved flow control construction An improved catcher device for a continuous ink jet printer of the kind having a linear orifice array for producing a linear curtain of parallel drop streams. The catcher device includes: (i) an elongated impact surface constructed and located to be adjac... | 04/14/1992 |
| 5076566 | Self-calibrating system for detecting media movement by using capacitors as sensors A sheet movement detection system for apparatus having a sheet feed path includes a first capacitor sensor including a first pair of parallel plate members located in opposing relation on opposite sides of the feed path plane at an upstream position and s... | 12/31/1991 |
| 5061097 | Printer construction for handling a plurality of print media formats A portable printer comprises a lid member forming a portion of the printer top wall, when in a closed position. The lid member is latchable in a first open position to provide a view stand for print media. The lid member is movable to a second open positi... | 10/29/1991 |
| 5035415 | System for detecting the accurate positioning of sheets along a feed path by using capacitors as sensors An improved sheet-position detection system for apparatus having a sheet feed path and a use location(s). The position detection system includes a first capacitive sensor including a first pair of parallel plate members located in opposing relation on opp... | 07/30/1991 |
| 5015109 | Sheet feed construction for compact printers An improved sheet separator and guide construction for a printer having a supply station and a feeder/platen for feeding a top sheet from a supported sheet stack and transporting it through the printing region. The construction includes a force plate for ... | 05/14/1991 |
| 5009509 | Clamping apparatus for thermal transfer printer Apparatus for clamping receiver sheets to the print drum of a thermal transfer printer. The apparatus includes a clamp assembly mounted for radial movement and having a clamp strip extending over the drum periphery and an interior longitudinal body couple... | 04/23/1991 |
| 4999647 | Synchronous stimulation for long array continuous ink jet printer A drop ejection device for continuous ink jet printing includes a rectangular solid divided by parallel, elongated through-slots between its major surfaces, into a plurality of approximately identical dilatational regions. Each such region has a longitudi... | 03/12/1991 |
| 4999644 | User selectable drop charge synchronization for traveling wave-stimulated, continuous ink jet printers A system for selectively shifting the phase of drop charging along the array of ink jets of a continuous ink jet printer by producing a replicate signal of the drop stimulation signal; selectively shifting the phase of the replicate signal to provide a ph... | 03/12/1991 |
| 4998805 | Elimination of field-induced instabilities in electrooptic modulators An electrooptic modulator having a electrooptic substrate and a transparent water impermeable layer formed on a surface of such substrate after absorbed water was removed from such substrate surface. This layer prevents adsorbed water from forming on the ... | 03/12/1991 |
| 4999650 | Bubble jet print head having improved multiplex actuation construction A multiplex drop ejection construction for a drop-on-demand, ink jet printer. The construction includes a support substrate; a first circuit portion having branches that include a resistive heater element and a diode device formed in spaced relation on th... | 03/12/1991 |
| 4993811 | Ridge array light valve device An improved electro-optic modulator for a light valve device of the kind wherein the modulator is sandwiched between cross polarizer elements. The modulator includes a ferroelectric ceramic panel having a plurality of parallel grooves forming intervening ... | 02/19/1991 |
| 4994821 | Continuous ink jet printer apparatus having improved short detection construction A short detection system for a continuous ink jet printer includes an electrically conductive sensor element located along an ink egress passage of the printer's catcher; a dielectric surface formed along the drop impact region of the catcher, between the... | 02/19/1991 |
| 4991287 | Method for fabricating printed circuit boards A process for fabricating a printed circuit board includes the steps of producing data in a printing-scan format representative of a designed area circuit pattern; with such data, printing a mask pattern, corresponding to said circuit pattern, on the meta... | 02/12/1991 |
| 4990938 | Printer nest for positioning ink jet print/cartridge An improved nest device construction for use with insertable ink jet print/cartridges having detent portions accurately located vis a vis their orifice array. The construction includes a U-shaped member, having a handle and arms spaced to receive a print/... | 02/05/1991 |
| 4982207 | Heating print-platen construction for ink jet printer An improved heater construction for an ink jet printer of the kind having a rotary print platen for holding and transporting a print sheet through a print path. The platen heater includes a hollow shell mounted for rotation through the print path and has ... | 01/01/1991 |
| 4972206 | Method and apparatus for fusing thermal transfer prints A method for fusing thermal transfer prints to avoid blister-type defects. The method includes in order, the steps of rapidly heating respective print image portions to a first temperature slightly below their respective components boiling temperature, ma... | 11/20/1990 |
| 4972201 | Drop charging method and system for continuous, ink jet printing A method for avoiding drop charge switching errors in continuous ink jet printing of the kind using stimulation to regulate ink drop break-off of a linear array of ink streams. The method includes the steps of: controlling ink drop stimulation so that the... | 11/20/1990 |
| 4971665 | Method of fabricating orifice plates with reusable mandrel A method of fabricating an orifice plate for ink jet printing includes the steps of: (i) providing a reusable mandrel having an electrically conductive bottom surface of an oxidizable metal such as aluminum and integral raised relief portions comprising a... | 11/20/1990 |
| 4972204 | Laminate, electroformed ink jet orifice plate construction An improved orifice plate for use in ink jet printing, includes a first elongated lamina composed of electroformed metal or metal-alloy having tensile or compressive stress condition and a second elongated lamina composed of a metal or metal-alloy electro... | 11/20/1990 |
| 4966464 | Fusing apparatus for thermal transfer prints An improved fusing device for a thermal transfer printer having a print system for producing a receiver sheet bearing a transferred dye image. The fusing device includes a fuser drum comprising a heat conducting rigid cylinder shell portion and three roll... | 10/30/1990 |
| 4956653 | Bubble jet print head having improved multi-layer protective structure for heater elements An improved protective construction for a bubble jet print head device of the kind having a substrate with a plurality of separately addressable resistive heater portions that are formed by address and common electrodes. The protective construction includ... | 09/11/1990 |
| 4949102 | Bubble jet print head orifice construction An improved orifice construction for a bubble jet print head of the kind including a plurality of electrode-addressed resistive heater elements predeterminedly spaced in a linear array on a support substrate. Such construction includes a plurality of sepa... | 08/14/1990 |
| 4947189 | Bubble jet print head having improved resistive heater and electrode construction An improved heater/electrode construction for a bubble jet print head of the kind having discrete ink heater elements formed of electrically resistive material and a plurality of address electrode pairs formed of electrically conductive material and elect... | 08/07/1990 |
| 4942408 | Bubble ink jet print head and cartridge construction and fabrication method A bubble jet print cartridge assembly includes an ink supply housing having an ink reservoir and a fluid block component capping the ink reservoir and having ink passages extending from the reservoir to an ink outlet(s). A drop ejection chip comprising a ... | 07/17/1990 |
| 4937589 | Continuous ink jet print heads A miniature continuous ink jet print head assembly comprises coupled drop ejection and drop control units. The drop ejection unit includes an elongated stimulator body having a manifold recess in one end and an orifice plate affixed thereover. Piezoelectr... | 06/26/1990 |
| 4934564 | Drop jet metering method and system A dispensing system for metering precise quantitites of liquid to a use site in droplet streams. The system includes a reservoir containing a quantity of liquid to be dispensed, a droplet generator for producing a stream of uniformly sized droplets of the... | 06/19/1990 |
| 4929969 | Ink supply construction and printing method for drop-on-demand ink jet printing A process and apparatus for drop-on-demand ink jet printing utilize the steps of: selectively ejecting ink drops from drop ejection regions through related orifices; feeding ink through capillary feed passages to the drop ejection regions to replace eject... | 05/29/1990 |
| 4928918 | Printer and stand assembly An improved printer/stand assembly includes a printer having four bottom wall recesses and two U-shaped stand members. The ends of the stand members are sized to interfit loosely within the bottom wall recesses. The span between the stand ends is greater ... | 05/29/1990 |
| 4929966 | Continuous ink jet printer with a gravity drain, catcher return system A gravity ink return system for a continuous ink jet printer of the kind having droplet generator means for directing streams of ink droplets along a print path and ink supply means including an ink reservoir and means for supplying ink from said reservoi... | 05/29/1990 |
| 4928116 | Ink jet printer having improved print head heater construction A charge plate construction for a continuous ink jet print head includes a plurality of charge electrodes and a resistive heater element configured in a serpentine path around the charge electrodes. The electrodes and heater element can be electroplated p... | 05/22/1990 |
| 4928114 | Air skiving system for ink jet printer start-up An improved system for air skiving the drop charging and drop catching surfaces of a continuous ink jet printer apparatus. The system includes a print head housing for enclosing the drop charger and catcher within a print head chamber having a printing dr... | 05/22/1990 |
| 4928113 | Constructions and fabrication methods for drop charge/deflection in continuous ink jet printer An improved print head construction for continuous ink jet printing of the kind which directs a plurality of ink streams through a drop charge region toward a print zone. The print head includes: (i) charge electrodes located adjacent the drop charge regi... | 05/22/1990 |
| 4928115 | Continuous ink jet printer having remotely operable print head assembly A remote print head assembly for a continuous ink jet printing system includes an upper print head portion for generating ink droplet streams and a lower print head portion for selectively charging and catching droplets. A frame surrounds the upper and lo... | 05/22/1990 |
| 4920355 | Interlace method for scanning print head systems An improved printing method using a print head having a linear array of print elements adapted to be indexed in a direction parallel to the line of the array direction to address successive groups of rows of print media pixels moved therepast in a directi... | 04/24/1990 |
| 4918463 | Compact printer having an integral cut-sheet feeder Printer apparatus of the kind having a housing, a print zone and a serial printing device for printing along line sectors of print media that are successively advanced into and out of the print zone includes an integral subsystem for handling discrete she... | 04/17/1990 |
| 4904100 | Cartridge and printer system for using roll print media A print media cartridge for use in combination with a portable printer having a housing with a print media ingress in its lower rear wall and a print media egress in its top wall. The cartridge includes a housing having an elongated wall portion of genera... | 02/27/1990 |
| 4897666 | Continuous ink jet stimulation adjustment using improved overdrive detection A method of adjusting stimulation amplitude in continuous ink jet printers to provide satellite-free printing includes the steps varying the stimulation amplitude between the underdrive and overdrive stimulation conditions, charging the resulting ink jet ... | 01/30/1990 |
| 4878064 | Continuous ink jet stimulation adjustment based on overdrive detection A system for adjusting the stimulation amplitude of a continuous ink jet printer to operate in a satellite-free, drop break off region includes a test charge electrode located downstream from the nominal information charging zone, an electrometer for dete... | 10/31/1989 |
| 4878063 | Multicolor printing apparatus and method having vernier detection/correction system for adjusting color separation planes Method and apparatus for detecting and correcting misregistration of color separation planes in a multicolor printing process include the functions of: (i) printing on a test sheet, with a first color printing subsystem, a first array of M parallel lines ... | 10/31/1989 |
