US3877036A - Precise jet alignment for ink jet printer - Google Patents
Precise jet alignment for ink jet printer Download PDFInfo
- Publication number
- US3877036A US3877036A US376072A US37607273A US3877036A US 3877036 A US3877036 A US 3877036A US 376072 A US376072 A US 376072A US 37607273 A US37607273 A US 37607273A US 3877036 A US3877036 A US 3877036A
- Authority
- US
- United States
- Prior art keywords
- ink
- ink jet
- stream
- droplets
- continuous stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/075—Ink jet characterised by jet control for many-valued deflection
- B41J2/08—Ink jet characterised by jet control for many-valued deflection charge-control type
- B41J2/09—Deflection means
Definitions
- ABSTRACT An ink jet printing system in which vernier jet alignment is achieved by positioning an electrode within close proximity to the continuous stream of ink being emitted by the jet and applying a voltage to the electrode so as to create an asymmetrical force field which has a component perpendicular to the ink stream direction and which affects the trajectory of the ink stream.
- the vernier jet alignment technique reduces the high cost involved in obtaining similar tolerances mechanically and the complexity of electronic alignment after drop formation, and is suitable for either single or multiple jet printer configurations.
- This invention relates to an ink jet printer system and more particularly to a system which has the capability of vernier jet alignment.
- non-impact printing processes have been developed primarily because this approach offers such attractive features such as speed and versatility in printing techniques.
- One form of non-impact printing process is known as ink jet printing and involves the modulation of a stream of fluid ink drops which are then recorded on a record medium.
- ink jet systems presently exist.
- One such system employs a small nozzle to which conductive fluid ink is delivered under pressure. As the ink exits the nozzle. instabilities due to surface tension forces cause the system to break up into a series of drops. This break up is synchronized by vibrating thefluid. which results in uniform drop size and spacing.
- a charging means is synchronized with the rate of drop formation which induces an electrostatic charge upon each drop as it is formed with the size of the charge directly related to the input signal voltage.
- the ink drops with their respective charges then pass through a constant electric field created by a pair of deflection plates which are maintained at a relatively high potential difference.
- the high electric field causes the ink drops to deflect according to the charge which they carry.
- the ink drops then either impact a record medium which results in printing or enter an ink sump for return to the ink reservoir.
- a control means such as an electrode within close proximity to the continuous stream of conductive fluid ink after the fluid is emitted from the ink jet nozzle but prior a unilateral or asymmetrical electric force field which can be adjusted so as to provide precise vernier alignment.
- the electrode may be placed perpendicularly to the continuous stream, resulting in an electric field which exerts a force only on the jet without affecting the charges of the drops breaking off further down the stream.
- the applied force results in a velocity component at right angles to the direction of the jet.
- the electrode is connected to a control source which may be used to vary the potential of the electrode so as to affect the alignment whenever desirable.
- the use of the alignment electrode prior to drop formation results in a printing system alignment technique which may be used on either single or multiple jet systems, is inexpensive to incorporate into the system, can operate in more than one plane, and provides precise jet alignment.
- FIG. 1 shows a multiple ink jet printing system in which correction electrodes are employed.
- FIG. 2 shows in schematic form that area of an ink jet system between the nozzle and the charge electrode where the correction electrode is positioned for precise alignment.
- FIG. 1 shows a multiple ink jet printing system in which correction electrodes are used to attain precise jet alignment.
- Conductive fluid is delivered under pressure to manifold 10 where it exits by orifices 12 in continuous streams 14.
- the ink is excited in manifold 10 by means of piezoelectric crystals 16 mounted on the wall of manifold 10 opposite orifices 12. Piezoelectric crystals 16 are connected to an excitation source 17 which provides a constant frequency voltage.
- the agitation ofthe ink in manifold 10 by piezoelectric crystals 16 causes the ink streams 14 to break-up into uniform drops 18 which are uniformly spaced.
- Charge electrodes 20 are positioned within close proximity to ink streams 14 at the point of break-up.
- Charge electrodes 20 are connected to a signal source (not shown) which provides a voltage proportional to an input signal.
- the voltage supplied to the charge electrodes 20 are induced upon drops 18 as they pass by charge electrodes 20. Drops 18 then pass through constant electric fields created by deflection plates 22 and continue towards record medium 24.
- ink droplets 18 either impact record medium 24 or enter ink sump 26 for recirculation in the system.
- correction electrodes 28 placed in close proximity to continuous streams 14 prior to break-up into drops 18.
- bias control 30 simply supplies an adjustable potential to correction electrodes 28.
- bias control 30 When correction electrodes 28 are biased by bias control 30, an electric force field is created which acts upon conductive ink 14. The applied force results in a component at right angles to the direction of continuous stream 14.
- FIG. 1 depicts in schematic form the placement of correction electrode 28 relative to continuous stream 14.
- correction electrode 28 is shown and described as being placed between nozzle plane 32 and charge electrode 20, it is only necessary that correction electrode 28 be placed within close proximity to continuous stream 14 prior to stream 14 breaking up into drops 18. lt is desirable that correction electrode 28 have a large diameter and be placed in close proximity to continuous stream 14. This allows a lower voltage to be placed on correction electrode 28. However, it will be recognized that if correction electrode 28 is placed too close to continuous stream 14, ink may strike correction electrode 28. Therefore. there exists a minimum practical distance between correction electrode 28 and continuous stream 14. Further, while a large diameter is desirable for correction electrode 28, the space usually available between nozzle plane 32 and charge electrode is limited and, therefore. limits the diameter size of correction electrode 28.
- ink is delivered under pressure to manifold 16 and exits through orifices 12 in continuous streams 14.
- Continuous streams 14 pass correction electrodes 28 which are biased at positive potentials by bias control 30. Since the ink is conductive, a dipole effect occurs on continuous streams 14 in which the surfaces of conductive streams 14 closest to correction electrodes 28 become negative with respect to the surfaces further away from correction electrode 28. This creates an attractive force between correction electrodes 28 and continuous streams 14 causing continuous streams 14 to realign in the directions of correction electrodes 28. This results in continuous streams l4 continuing at an angle at as shown in FIG. 2 to its normal projected flight path 34. The size of a is dependent on the potential supply to correction electrodes 28 by bias control which is adjustable.
- Continuous streams 14 then reach charge electrodes 20 at which point continuous streams l4 breakup into drops 18 and receives charges from charge electrodes 20 and proceed to pass through the electric fields created by deflection plates 22. Drops 18 deflect in the fields created by deflection plates 22 proportional to their charge and pass on to either impact print medium 24 or to enter sump 26 for return to the ink system.
- charge electrode 28 has been shown as straight wire electrode perpendicular to continuous stream 14, it is understood that various shape and configurations of electrodes which will produce an electric field having a component at right angles to the direction of continuous stream 14 may be employed.
- the correction technique disclosed may be employed with any fluid jet stream which employs a conductive fluid which is emitted in a continuous stream.
- An alignable recording system for precisely recording on a recording medium comprising:
- a source of conductive fluid a nozzle means for ejecting said conductive fluid in a continuous stream towards said recording medium; excitation means for agitating said conductive fluid prior to ejection from said nozzle means to cause said continuous stream to break up into uniform droplets at a point spaced from said nozzle means; a charging means positioned between said nozzle means and said recording medium and in close proximity to said continuous stream at said point where said continuous stream breaks up into droplets for selectively imparting charges to said droplets.
- deflection plates positioned between said charging means and said recording medium such that said droplets pass through the electrostatic fleld created by said deflection plates for deflecting said charged droplets along one dimension; and a bias control means positioned between said nozzle means and said charging means and in close proximity to said continuous stream prior to said point of breakup for creating a constant force field to transversely deflect said continuous stream along a second dimension approximately perpendicular to said one dimension for alignment of said stream.
- an ink jet nozzle means for directing conductive ink from said manifold means in a continuous ink jet stream, excitation means in said manifold for actuating said ink jet to cause said stream to break into uniformly spaced droplets at a predetermined point,
- correction biasing means positioned in close proximity to said ink jet and intermediate said nozzle means and said charging means where the ink jet is still in a continuous stream prior to said predetermined point, for creating a constant force field for deflecting said ink jet stream along a second dimension perpendicular to the direction of said ink and perpendicular to said one dimension for alignment of said ink jet stream.
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US376072A US3877036A (en) | 1973-07-02 | 1973-07-02 | Precise jet alignment for ink jet printer |
IT22009/74A IT1010177B (it) | 1973-07-02 | 1974-04-29 | Stampatrice a getto di inchio stro perfezionata |
FR7417751A FR2235800B1 (de) | 1973-07-02 | 1974-05-15 | |
GB2366674A GB1432103A (en) | 1973-07-02 | 1974-05-28 | Ink jet printer |
JP6660874A JPS5424859B2 (de) | 1973-07-02 | 1974-06-13 | |
CA203,322A CA1000348A (en) | 1973-07-02 | 1974-06-25 | Precise jet alignment for ink jet printer |
DE2431077A DE2431077C2 (de) | 1973-07-02 | 1974-06-28 | Vorrichtung zum Ausrichten eines aus einer Düse ausgestoßenen Tintenstromes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US376072A US3877036A (en) | 1973-07-02 | 1973-07-02 | Precise jet alignment for ink jet printer |
Publications (1)
Publication Number | Publication Date |
---|---|
US3877036A true US3877036A (en) | 1975-04-08 |
Family
ID=23483593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US376072A Expired - Lifetime US3877036A (en) | 1973-07-02 | 1973-07-02 | Precise jet alignment for ink jet printer |
Country Status (7)
Country | Link |
---|---|
US (1) | US3877036A (de) |
JP (1) | JPS5424859B2 (de) |
CA (1) | CA1000348A (de) |
DE (1) | DE2431077C2 (de) |
FR (1) | FR2235800B1 (de) |
GB (1) | GB1432103A (de) |
IT (1) | IT1010177B (de) |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3960324A (en) * | 1974-01-10 | 1976-06-01 | International Business Machines Corporation | Method for generation of multiple uniform fluid filaments |
US4007464A (en) * | 1975-01-23 | 1977-02-08 | International Business Machines Corporation | Ink jet nozzle |
US4086602A (en) * | 1975-02-26 | 1978-04-25 | Hitachi, Ltd. | Printing video signal information using ink drops |
EP0004737A2 (de) * | 1978-04-10 | 1979-10-17 | Xerox Corporation | Verfahren und Einrichtung zum elektrostatischen Hin- und Herbewegen eines Tintenstrahls |
US4223318A (en) * | 1977-12-09 | 1980-09-16 | International Business Machines Corporation | Method and apparatus for compensating for instability of a stream of droplets |
US4224523A (en) * | 1978-12-18 | 1980-09-23 | Xerox Corporation | Electrostatic lens for ink jets |
US4238804A (en) * | 1979-02-28 | 1980-12-09 | Xerox Corporation | Stitching method and apparatus for multiple nozzle ink jet printers |
US4272771A (en) * | 1978-09-25 | 1981-06-09 | Ricoh Co., Ltd. | Ink jet printer with multiple nozzle print head and interlacing or dither means |
US4274100A (en) * | 1978-04-10 | 1981-06-16 | Xerox Corporation | Electrostatic scanning ink jet system |
US4309711A (en) * | 1980-07-02 | 1982-01-05 | Xerox Corporation | Hidden gutter for ink jet recording system |
US4314258A (en) * | 1980-02-04 | 1982-02-02 | The Mead Corporation | Ink jet printer including external deflection field |
US4345260A (en) * | 1980-03-13 | 1982-08-17 | Compagnie Internationale Pour L'informatique Cii-Honeywell Bull (Societe Anonyme) | Ink jet printer with carriage velocity compensation |
US4395716A (en) * | 1981-08-27 | 1983-07-26 | Xerox Corporation | Bipolar ink jet method and apparatus |
US4596990A (en) * | 1982-01-27 | 1986-06-24 | Tmc Company | Multi-jet single head ink jet printer |
EP1201434A1 (de) | 2000-10-25 | 2002-05-02 | Eastman Kodak Company | Aktive Kompensation in fehlgeleiteten Tropfen unter Verwendung einer Elektrobeschichtung in einem Tintenstrahldruckkopf |
EP1201435A2 (de) | 2000-10-25 | 2002-05-02 | Eastman Kodak Company | Aktive Kompensation der Richtungsänderungen des Tröpfenausstosses in einem Tintenstrahldruckkopf |
US6508532B1 (en) | 2000-10-25 | 2003-01-21 | Eastman Kodak Company | Active compensation for changes in the direction of drop ejection in an inkjet printhead having orifice restricting member |
US6517197B2 (en) * | 2001-03-13 | 2003-02-11 | Eastman Kodak Company | Continuous ink-jet printing method and apparatus for correcting ink drop replacement |
US6554389B1 (en) | 2001-12-17 | 2003-04-29 | Eastman Kodak Company | Inkjet drop selection a non-uniform airstream |
US6659598B2 (en) * | 2000-04-07 | 2003-12-09 | University Of Kentucky Research Foundation | Apparatus and method for dispersing nano-elements to assemble a device |
US20070064068A1 (en) * | 2005-09-16 | 2007-03-22 | Eastman Kodak Company | Continuous ink jet apparatus with integrated drop action devices and control circuitry |
US20070064066A1 (en) * | 2005-09-16 | 2007-03-22 | Eastman Kodak Company | Continuous ink jet apparatus and method using a plurality of break-off times |
US20070064034A1 (en) * | 2005-09-16 | 2007-03-22 | Eastman Kodak Company | Ink jet break-off length controlled dynamically by individual jet stimulation |
US20070064037A1 (en) * | 2005-09-16 | 2007-03-22 | Hawkins Gilbert A | Ink jet break-off length measurement apparatus and method |
US20080088680A1 (en) * | 2006-10-12 | 2008-04-17 | Jinquan Xu | Continuous drop emitter with reduced stimulation crosstalk |
US20080231669A1 (en) * | 2007-03-19 | 2008-09-25 | Brost Randolph C | Aerodynamic error reduction for liquid drop emitters |
WO2014168770A1 (en) | 2013-04-11 | 2014-10-16 | Eastman Kodak Company | Printhead including acoustic dampening structure |
US9162454B2 (en) | 2013-04-11 | 2015-10-20 | Eastman Kodak Company | Printhead including acoustic dampening structure |
US9199462B1 (en) | 2014-09-19 | 2015-12-01 | Eastman Kodak Company | Printhead with print artifact supressing cavity |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1544493A (en) * | 1975-09-05 | 1979-04-19 | Ibm | Apparatus for liquid droplet generation |
DE2941322C2 (de) * | 1978-10-11 | 1986-02-20 | Ricoh Co., Ltd., Tokio/Tokyo | Farbstrahl-Drucker |
EP0020182A1 (de) * | 1979-06-04 | 1980-12-10 | Xerox Corporation | Vorrichtung zum Erzeugen von Flüssigkeitstropfen und Verfahren |
FR2479096A1 (fr) * | 1980-03-26 | 1981-10-02 | Cambridge Consultants | Gouttiere pour machine a imprimer a rangees de jets d'encre et machine a imprimer equipee d'une telle gouttiere |
JPS60145136A (ja) * | 1983-12-30 | 1985-07-31 | 加川 秀男 | 車椅子 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2600129A (en) * | 1948-07-17 | 1952-06-10 | Charles H Richards | Apparatus for producing a stream of electrically charged multimolecular particles |
US3596275A (en) * | 1964-03-25 | 1971-07-27 | Richard G Sweet | Fluid droplet recorder |
US3689936A (en) * | 1970-08-20 | 1972-09-05 | Teletype Corp | Lateral oscillation to form ink droplets |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH375027A (fr) * | 1961-04-14 | 1964-02-15 | Paillard Sa | Procédé d'ècriture et machine pour la mise en oeuvre de ce procédé |
FR1447756A (fr) * | 1964-09-25 | 1966-07-29 | Clevite Corp | Appareil pour l'impression de caractères à partir de signaux électriques |
DE1807306A1 (de) * | 1967-11-09 | 1969-06-19 | Teletype Corp | Elektrostatischer Fluessigkeitsschreiber |
-
1973
- 1973-07-02 US US376072A patent/US3877036A/en not_active Expired - Lifetime
-
1974
- 1974-04-29 IT IT22009/74A patent/IT1010177B/it active
- 1974-05-15 FR FR7417751A patent/FR2235800B1/fr not_active Expired
- 1974-05-28 GB GB2366674A patent/GB1432103A/en not_active Expired
- 1974-06-13 JP JP6660874A patent/JPS5424859B2/ja not_active Expired
- 1974-06-25 CA CA203,322A patent/CA1000348A/en not_active Expired
- 1974-06-28 DE DE2431077A patent/DE2431077C2/de not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2600129A (en) * | 1948-07-17 | 1952-06-10 | Charles H Richards | Apparatus for producing a stream of electrically charged multimolecular particles |
US3596275A (en) * | 1964-03-25 | 1971-07-27 | Richard G Sweet | Fluid droplet recorder |
US3689936A (en) * | 1970-08-20 | 1972-09-05 | Teletype Corp | Lateral oscillation to form ink droplets |
Cited By (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3960324A (en) * | 1974-01-10 | 1976-06-01 | International Business Machines Corporation | Method for generation of multiple uniform fluid filaments |
US4007464A (en) * | 1975-01-23 | 1977-02-08 | International Business Machines Corporation | Ink jet nozzle |
US4086602A (en) * | 1975-02-26 | 1978-04-25 | Hitachi, Ltd. | Printing video signal information using ink drops |
US4223318A (en) * | 1977-12-09 | 1980-09-16 | International Business Machines Corporation | Method and apparatus for compensating for instability of a stream of droplets |
EP0004737A2 (de) * | 1978-04-10 | 1979-10-17 | Xerox Corporation | Verfahren und Einrichtung zum elektrostatischen Hin- und Herbewegen eines Tintenstrahls |
EP0004737A3 (de) * | 1978-04-10 | 1979-10-31 | Xerox Corporation | Verfahren und Einrichtung zum elektrostatischen Hin- und Herbewegen eines Tintenstrahls |
US4274100A (en) * | 1978-04-10 | 1981-06-16 | Xerox Corporation | Electrostatic scanning ink jet system |
US4272771A (en) * | 1978-09-25 | 1981-06-09 | Ricoh Co., Ltd. | Ink jet printer with multiple nozzle print head and interlacing or dither means |
US4224523A (en) * | 1978-12-18 | 1980-09-23 | Xerox Corporation | Electrostatic lens for ink jets |
US4238804A (en) * | 1979-02-28 | 1980-12-09 | Xerox Corporation | Stitching method and apparatus for multiple nozzle ink jet printers |
US4314258A (en) * | 1980-02-04 | 1982-02-02 | The Mead Corporation | Ink jet printer including external deflection field |
US4345260A (en) * | 1980-03-13 | 1982-08-17 | Compagnie Internationale Pour L'informatique Cii-Honeywell Bull (Societe Anonyme) | Ink jet printer with carriage velocity compensation |
US4309711A (en) * | 1980-07-02 | 1982-01-05 | Xerox Corporation | Hidden gutter for ink jet recording system |
US4395716A (en) * | 1981-08-27 | 1983-07-26 | Xerox Corporation | Bipolar ink jet method and apparatus |
US4596990A (en) * | 1982-01-27 | 1986-06-24 | Tmc Company | Multi-jet single head ink jet printer |
US6659598B2 (en) * | 2000-04-07 | 2003-12-09 | University Of Kentucky Research Foundation | Apparatus and method for dispersing nano-elements to assemble a device |
EP1201434A1 (de) | 2000-10-25 | 2002-05-02 | Eastman Kodak Company | Aktive Kompensation in fehlgeleiteten Tropfen unter Verwendung einer Elektrobeschichtung in einem Tintenstrahldruckkopf |
EP1201435A2 (de) | 2000-10-25 | 2002-05-02 | Eastman Kodak Company | Aktive Kompensation der Richtungsänderungen des Tröpfenausstosses in einem Tintenstrahldruckkopf |
US6390610B1 (en) | 2000-10-25 | 2002-05-21 | Eastman Kodak Company | Active compensation for misdirection of drops in an inkjet printhead using electrodeposition |
US6508532B1 (en) | 2000-10-25 | 2003-01-21 | Eastman Kodak Company | Active compensation for changes in the direction of drop ejection in an inkjet printhead having orifice restricting member |
US6561616B1 (en) | 2000-10-25 | 2003-05-13 | Eastman Kodak Company | Active compensation for changes in the direction of drop ejection in an inkjet printhead |
US6517197B2 (en) * | 2001-03-13 | 2003-02-11 | Eastman Kodak Company | Continuous ink-jet printing method and apparatus for correcting ink drop replacement |
US6554389B1 (en) | 2001-12-17 | 2003-04-29 | Eastman Kodak Company | Inkjet drop selection a non-uniform airstream |
EP1319510A1 (de) | 2001-12-17 | 2003-06-18 | Eastman Kodak Company | Tintenstrahldrucksystem mit Tropfenauswahl in einem nicht-uniformen Luftstrom |
US20070064068A1 (en) * | 2005-09-16 | 2007-03-22 | Eastman Kodak Company | Continuous ink jet apparatus with integrated drop action devices and control circuitry |
US7401906B2 (en) | 2005-09-16 | 2008-07-22 | Eastman Kodak Company | Ink jet break-off length controlled dynamically by individual jet stimulation |
US20070064034A1 (en) * | 2005-09-16 | 2007-03-22 | Eastman Kodak Company | Ink jet break-off length controlled dynamically by individual jet stimulation |
US20070064037A1 (en) * | 2005-09-16 | 2007-03-22 | Hawkins Gilbert A | Ink jet break-off length measurement apparatus and method |
WO2007035247A1 (en) | 2005-09-16 | 2007-03-29 | Eastman Kodak Company | Individual jet stimulation controlled jet break-off length |
WO2007035273A1 (en) | 2005-09-16 | 2007-03-29 | Eastman Kodak Company | Ink jet break-off length measurement |
WO2007035281A1 (en) | 2005-09-16 | 2007-03-29 | Eastman Kodak Company | Continuous ink jet apparatus |
WO2007035280A1 (en) | 2005-09-16 | 2007-03-29 | Eastman Kodak Company | Continuous ink jet apparatus |
US7249830B2 (en) | 2005-09-16 | 2007-07-31 | Eastman Kodak Company | Ink jet break-off length controlled dynamically by individual jet stimulation |
US20070222826A1 (en) * | 2005-09-16 | 2007-09-27 | Hawkins Gilbert A | Ink jet break-off length controlled dynamically by individual jet stimulation |
EP2514596A2 (de) | 2005-09-16 | 2012-10-24 | Eastman Kodak Company | Verfahren zum Betreiben einer kontinuierlichen Tintenstrahlvorrichtung |
US7364276B2 (en) | 2005-09-16 | 2008-04-29 | Eastman Kodak Company | Continuous ink jet apparatus with integrated drop action devices and control circuitry |
US20080122900A1 (en) * | 2005-09-16 | 2008-05-29 | Piatt Michael J | Continuous ink jet apparatus with integrated drop action devices and control circuitry |
US20070064066A1 (en) * | 2005-09-16 | 2007-03-22 | Eastman Kodak Company | Continuous ink jet apparatus and method using a plurality of break-off times |
US8226199B2 (en) | 2005-09-16 | 2012-07-24 | Eastman Kodak Company | Ink jet break-off length measurement apparatus and method |
US7434919B2 (en) | 2005-09-16 | 2008-10-14 | Eastman Kodak Company | Ink jet break-off length measurement apparatus and method |
US20090027459A1 (en) * | 2005-09-16 | 2009-01-29 | Hawkins Gilbert A | Ink jet break-off length measurement apparatus and method |
US7673976B2 (en) | 2005-09-16 | 2010-03-09 | Eastman Kodak Company | Continuous ink jet apparatus and method using a plurality of break-off times |
US8087740B2 (en) | 2005-09-16 | 2012-01-03 | Eastman Kodak Company | Continuous ink jet apparatus and method using a plurality of break-off times |
US7777395B2 (en) | 2006-10-12 | 2010-08-17 | Eastman Kodak Company | Continuous drop emitter with reduced stimulation crosstalk |
US20080088680A1 (en) * | 2006-10-12 | 2008-04-17 | Jinquan Xu | Continuous drop emitter with reduced stimulation crosstalk |
US7758171B2 (en) | 2007-03-19 | 2010-07-20 | Eastman Kodak Company | Aerodynamic error reduction for liquid drop emitters |
US20080231669A1 (en) * | 2007-03-19 | 2008-09-25 | Brost Randolph C | Aerodynamic error reduction for liquid drop emitters |
WO2014168770A1 (en) | 2013-04-11 | 2014-10-16 | Eastman Kodak Company | Printhead including acoustic dampening structure |
US9162454B2 (en) | 2013-04-11 | 2015-10-20 | Eastman Kodak Company | Printhead including acoustic dampening structure |
US9168740B2 (en) | 2013-04-11 | 2015-10-27 | Eastman Kodak Company | Printhead including acoustic dampening structure |
US9199462B1 (en) | 2014-09-19 | 2015-12-01 | Eastman Kodak Company | Printhead with print artifact supressing cavity |
Also Published As
Publication number | Publication date |
---|---|
DE2431077C2 (de) | 1982-04-15 |
FR2235800A1 (de) | 1975-01-31 |
IT1010177B (it) | 1977-01-10 |
DE2431077A1 (de) | 1975-01-23 |
FR2235800B1 (de) | 1976-12-24 |
CA1000348A (en) | 1976-11-23 |
JPS5424859B2 (de) | 1979-08-24 |
JPS5039422A (de) | 1975-04-11 |
GB1432103A (en) | 1976-04-14 |
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Owner name: MORGAN BANK Free format text: SECURITY INTEREST;ASSIGNOR:IBM INFORMATION PRODUCTS CORPORATION;REEL/FRAME:005678/0062 Effective date: 19910327 Owner name: IBM INFORMATION PRODUCTS CORPORATION, 55 RAILROAD Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INTERNATIONAL BUSINESS MACHINES CORPORATION;REEL/FRAME:005678/0098 Effective date: 19910326 |