US4050377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed printer with heated aperture board
Assignee: Oki Electric Industry Co Ltd
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Filing: 1975-10-03
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Granted: 1977-09-27
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Expires: 1995-10-03
Abstract
Abstract A high speed printer in which the ions produced between the high voltage impressed electrodes are modulated by an aperture board and then passed through an ink mist so as to electrically charge the ink particles whereby to print the desired letters, figures, signs, etc., on a printing paper, characterized in that a heating element is provided in the aperture board for lowering the relative humidity in said aperture board.
Inventors
- 👤 Akinori Watanabe
- 👤 Katsuhide Tanoshima
- 👤 Matsusaburo Noguchi
- 👤 Kinya Hattori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:58
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/215; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
A high speed printer of the type using an ink mist formed of charged ink particles, said printer comprising electrodes having high voltage impressed thereon to produce ions, an aperture board having electric fields selectively applied therein to modulate said ions to form cations passing through said aperture board, said cations combining with said ink mist for effecting printing, and heating means located in said aperture board for heating the air received in said aperture board to effect a heating of the aperture board.
Claim 2
Dependent Claim
84 words
A high speed printer of the type using an ink mist formed of charged ink particles, said printer comprising electrodes having high voltage impressed thereon to produce ions, an aperture board having electric fields selectively applied therein to modulate said ions to form cations passing through said aperture board, said cations combining with said ink mist for effecting printing, and heating means located in said aperture board for heating the air received in said aperture board to effect a heating of the aperture board.
Claim 3
Dependent Claim
22 words
A high speed printer as recited in claim 1, wherein said heating means comprises a heating element located in said aperture board.
Claim 4
Dependent Claim
33 words
A high speed printer as recited in claim 1, wherein said heating means comprises an insulator located within said aperture board and constant temperature resistors implanted in said insulator to effect said heating.
Claim 5
Dependent Claim
29 words
A high speed printer as recited in claim 1, wherein said heating means comprises insulator member and spaced apart constant temperature resistors located between a pair of electrode plates.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |