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1.发明专利
公开(公告)号：JP2001105587A
公开(公告)日：2001-04-17
申请号：JP2000305952
申请日：2000-10-05
Applicant: LEXMARK INT INC
Inventor： KOMPLIN STEVEN ROBERT , LATTUCA MICHAEL DAVID , LONG GREGORY ALAN , WARD DAVID AMOS
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet pen equipped with a cartridge main body having a printing head and an ink cartridge detachable and replaceable with respect to the cartridge main body. SOLUTION: At least one elongated recessed part and at least one projected part are arranged on the mutually opposed surfaces of a cartridge main body (12, 20, 208, 366) and an ink cartridge (14, 22, 24, 26, 28, 202, 300, 302, 304, 306, 442) and can be engaged with each other in order to guide the ink cartridge to a desired position with respect to the cartridge main body to arrange the same.
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公开(公告)号：JPH10291320A
公开(公告)日：1998-11-04
申请号：JP12383298
申请日：1998-03-30
Applicant: LEXMARK INT INC
Inventor： MURTHY ASHOK , KOMPLIN STEVEN ROBERT , POWERS JAMES HAROLD
Abstract: PROBLEM TO BE SOLVED: To improve an ink filtration characteristic of catching fragments, etc., by effecting resorption to an ink flow channel, a projection chamber, a nozzle hole, etc., by a laser inside a polymer film through a protecting film, and defining a flow feature of a nozzle plate. SOLUTION: A polymeric film 100 coated with a protecting film is positioned on a platen. A laser 114 projects light into the polymeric film 100, thereby carrying out resorption or ablation to a flow feature and forming a plurality of nozzle plates in the film. A laser beam 116 is orientated so as to pass a mask 118, and consequently collided to the polymeric film 100. As a result, a plurality of parts of the polymeric material are removed in a required pattern from the film, and consequently the flow feature of the nozzle plate is formed. Some of the substance removed from the polymeric film 100 forms decomposed product or fragments and is piled again on the protecting film on the polymeric film 100.
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公开(公告)号：JPH11263015A
公开(公告)日：1999-09-28
申请号：JP35649398
申请日：1998-12-15
Applicant: LEXMARK INT INC
Inventor： KOMPLIN STEVEN ROBERT , MURTHY ASHOK , RAULINAITIS MICHAEL , WILLIAMS GARY RAYMOND
Abstract: PROBLEM TO BE SOLVED: To provide a printing head reduced in thermal and mechanical stress and a method for producing the same. SOLUTION: In a method for producing an ink jet printing head by bonding a nozzle plate to a polymer layer by heat, the polymer layer 22 is arranged between a semiconductor substrate and the nozzle plate and includes an expanding gap space or trough part sufficient to suppress the stress in a structure during the process bonding the nozzle plate 26 to the polymer layer 22. By this constitution, the problem of the positional shift and strain caused by a conventional head structure is reduced.
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公开(公告)号：JPH11235832A
公开(公告)日：1999-08-31
申请号：JP35525898
申请日：1998-12-14
Applicant: LEXMARK INT INC
Inventor： KOMPLIN STEVEN ROBERT , POWERS JAMES HAROLD
IPC: B41J2/175
Abstract: PROBLEM TO BE SOLVED: To provide a disposable ink cartridge for an ink jet printer capable of preventing ink from leaking therefrom. SOLUTION: A sealed reservoir 11 of an ink cartridge of an ink jet printer has one or two spring-loaded bags 21, 22 therein for functioning as an accumulator that controls a back pressure in the sealed reservoir. A source of ambient air for one or plural bags 21, 22 serves as a source of the air for an air bubble generator. The interior of the single bag or one of the two bags communicates with the air bubble generator so that air is supplied to the air bubble generator when air bubbles are required within the sealed reservoir to decrease back pressure therein. This same air flow from the interior of the single bag or one of the two bags permits the interior of the bag to receive ink leaking from the sealed reservoir passing through at least one capillary channel of the air bubble generator when the back pressure within the sealed reservoir becomes too low.
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公开(公告)号：JPH11105287A
公开(公告)日：1999-04-20
申请号：JP22511398
申请日：1998-07-03
Applicant: LEXMARK INT INC
Inventor： MURTHY ASHOK , KOMPLIN STEVEN ROBERT
Abstract: PROBLEM TO BE SOLVED: To improve the structure inside a print head for providing an energy pulse to a heating element by providing a print head having a heater chip comprising a plurality of conductors arranged in spaced apart planes or in a matrix. SOLUTION: First and second conductors 60a to 60f, 70a to 70d provided in first and second sets 80a, 80b are arranged in a matrix having a first conductor row and a second conductor column. In order to obtain a column comprising arranged 4 pieces, each of the second conductor column comprises a single piece of the second conductors 70a to 70d. Therefore, only 6 pieces of the first conductors 60a to 60f and 4 pieces of the second conductors 70a to 70d are required for heating 24 pieces of heating elements 12. The number of the heating element 12 and the number of the first and second conductors to be provided on a chip 10 can be changed optionally.
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Patent Agency Ranking
公开(公告)号：JPH11105286A
公开(公告)日：1999-04-20
申请号：JP22354598
申请日：1998-07-02
Applicant: LEXMARK INT INC
Inventor： KOMPLIN STEVEN ROBERT , MURTHY ASHOK
Abstract: PROBLEM TO BE SOLVED: To improve the structure inside an inkjet print head for providing an energy pulse to a heating element by providing a print head having a heater chip comprising a plurality of first and second conductors positioned in spaced apart planes. SOLUTION: A heater chip 10 comprises a main body part 18 including a plurality of first and second conductors. First and second sets 80a, 80b each comprising 6 pieces of the first conductors 60a to 60f, 4 pieces of the second conductors 70a to 70d, and 4 pieces of heating element sections 11a to 11d, are provided in the sides facing with each other with respect to a center opening 15. Each heating element section 11a to 11d has 6 pieces of heating elements 12 such that the 4 heating element sections 11a to 11d provide 24 pieces of the heating elements 12. Accordingly, 8 pieces of the heating element sections 11a to 11d obtain 48 pieces of the heating elements 12.
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公开(公告)号：JPH11105288A
公开(公告)日：1999-04-20
申请号：JP22511498
申请日：1998-07-03
Applicant: LEXMARK INT INC
Inventor： KOMPLIN STEVEN ROBERT , MURTHY ASHOK , BEACH BRADLEY L
Abstract: PROBLEM TO BE SOLVED: To improve the structure inside a print head for providing an energy pulse to a heating element by providing a print head having a heater chip comprising a plurality of conductors arranged in spaced apart planes or in a matrix. SOLUTION: First and second conductors 60a to 60f, 70a to 70d provided in first and second sets 80a, 80b are arranged in a matrix having a first conductor row and a second conductor column. In order to provide a column comprising arranged 4 pieces, each of the second conductor column comprises a single piece of the second conductors 70a to 70d. Therefore, only 6 pieces of the first conductors 60a to 60f and 4 pieces of the second conductors 70a to 70d are required for heating 24 pieces of heating elements 12. The number of the heating element 12 and the number of the first and second conductors to be provided on a chip 10 can be changed optionally.
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公开(公告)号：JPH10315475A
公开(公告)日：1998-12-02
申请号：JP2638098
申请日：1998-01-26
Applicant: LEXMARK INT INC
Inventor： CORNELL ROBERT WILSON , KOMPLIN STEVEN ROBERT , MORRIS JACK WILLIAM , POWERS JAMES HAROLD , STEWARD LAWRENCE RUSEELL
Abstract: PROBLEM TO BE SOLVED: To provide a print head for modulating the drop size having features of profile simplified using a simplified control circuit. SOLUTION: The ink jet printing head modulates the drop size of ink by providing an ink jet printing head chip for an ink jet printing head having a cavity communicating with an ink supply and a nozzle. The chip comprises an actuator having first and second active areas 54, 56 located while being spaced apart substantially equally from the nozzle.
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公开(公告)号：JPH10291319A
公开(公告)日：1998-11-04
申请号：JP12383198
申请日：1998-03-30
Applicant: LEXMARK INT INC
Inventor： MURTHY ASHOK , CORLEY RICHARD EARL , JACKSON TONYA HARRIS , KOMPLIN STEVEN ROBERT , WILLIAMS GARY RAYMOND
Abstract: PROBLEM TO BE SOLVED: To eliminate an additional process for alignment and removal of an adhesive, by coating a composite strip including a polymeric material with a polymeric sacrifice layer, effecting resorption to a nozzle hole, etc., in the composite strip by a laser, and removing the sacrifice layer. SOLUTION: A composite strip 26 is moved along nozzle plates 150 by sprocket holes 88 arranged adjacently to confronting edge parts 89 of the composite strip 26 at the opposite side to the nozzle plates 150. The nozzle plates 150 are divided to be individual plates by ablation by a laser through a sacrifice layer, an adhesive layer and a polymeric material to form a plurality of slits 92 as rectangular patterns in the periphery of the nozzle plates 150. The slits 92 in the periphery of the nozzle plates 150 are defined by a projecting mask. A laser light is passed through a hole in the projecting mask and does not reach the composite strip 26 through the other part of the mask.
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公开(公告)号：JPH10291317A
公开(公告)日：1998-11-04
申请号：JP12383398
申请日：1998-03-30
Applicant: LEXMARK INT INC
Inventor： MURTHY ASHOK , KOMPLIN STEVEN ROBERT , CORNELL ROBERT WILSON , POWERS JAMES HAROLD , KAUFMAN MICAH ABRAHAM , GIBSON BRUCE DAVID
Abstract: PROBLEM TO BE SOLVED: To decrease interferences between projection chambers of a thermal ink-jet printing head and improve a flow characteristic of ink, by constituting a nozzle plate of a polymer or polymeric material having sufficient thickness to form an ink feed path connected to an ink feed area and feeding ink to the projection chambers. SOLUTION: After a flow feature and a nozzle hole 16 are formed of a polymeric material 18, a nozzle plate 10 is set to a semiconductor substrate 20 including an ink propeller device 22 such as a resistor heating ink in a projection chamber 14, etc. When the ink is heated by the ink propeller device 22 of a resistor type, components of the ink are evaporated rapidly to generate bubbles of steam. The bubbles formed in the projection chamber 14 press a part of the ink out from the projection chamber 14 through the nozzle hole 16. The ink collides against the semiconductor substrate 20. Since the bubbles of steam expand quickly in all directions, the bubbles extrude the ink also from a feed path 12.
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