Patent US4396924A successfully refreshed from Google Patents.
US4396924A
Expired / Lapsed
US
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Recording head for ink mosaic printers
Assignee: INKJET SYSTEMS & Co KG GmbH
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Filing: 1980-11-12
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Granted: 1983-08-02
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Expires: 2000-11-12
Abstract
Abstract A recording head for ink mosaic printers has a plurality of channels communicating with an ink supply each of which has an individually controllable electro-mechanical transducer operable to eject ink droplets from respective channels and each channel further having at least two nozzle openings through which the ink is ejected toward a carrier medium for achieving a finer pattern of droplets on the carrier medium for improved resolution and adaptability to different types of texts.
Inventors
- 👤 Gunter Rosenstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:51
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14201; B41J2002/14475
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A recording head for use in an ink mosaic recording device comprising a plurality of channels in said recording head communicating with an ink supply, said channels terminating at a common face adjacent to a recording medium, an individually operable electro-mechanical transducer associated with each channel for selectively ejecting droplets of ink from said channels, each channel terminating in four nozzle openings disposed at the corner of a rhombus on said face and said nozzle openings being disposed in at least two parallel rows, with a lowest nozzle opening of a rhombus in a first row of nozzle openings and an uppermost nozzle opening of a rhombus in a row parallel thereto being disposed at the same level.
Claim 2
Dependent Claim
118 words
A recording head for use in an ink mosaic recording device comprising a plurality of channels in said recording head communicating with an ink supply, said channels terminating at a common face adjacent to a recording medium, an individually operable electro-mechanical transducer associated with each channel for selectively ejecting droplets of ink from said channels, each channel terminating in four nozzle openings disposed at the corner of a rhombus on said face and said nozzle openings being disposed in at least two parallel rows, with a lowest nozzle opening of a rhombus in a first row of nozzle openings and an uppermost nozzle opening of a rhombus in a row parallel thereto being disposed at the same level.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |