US4251824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid jet recording method with variable thermal viscosity modulation
Assignee: Canon Inc
•
Filing: 1979-11-13
•
Granted: 1981-02-17
•
Expires: 1999-11-13
Abstract
Abstract A liquid jet recording method, which includes controlling thermal energy quantity to be generated by driving predetermined numbers of heat generating bodies selected in accordance with recording information from a plurality of heat generating bodies which disposed along a flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, and each being driven independently of the other; causing the thus controlled thermal energy to act on the liquid in the liquid chamber to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from the discharge orifice for recording.
Inventors
- 👤 Toshitami Hara
- 👤 Yasushi Sato
- 👤 Yasushi Takatori
- 👤 Yoshiaki Shirato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:48
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/015; B41J2/04; B41J2/045; B41J2/04501; B41J2/04533; B41J2/0458; B41J2/04588; B41J2/04593; B41J2/21; B41J2/2121; B41J2/2128; H; H04; H04N; H04N1/00; H04N1/40; H04N1/40025; B41J2/135; B41J2/14; B41J2002/14379
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
110 words
A liquid jet recording method, which comprises: controlling thermal energy quantity to be generated by driving predetermined numbers of heat generating bodies selected in accordance with recording informations from a plurality of heat generating bodies which are arranged along flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, and each being driven independently of the other; causing said controlled thermal energy to act on the liquid in said liquid chamber to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from said discharge orifice for recording.
Claim 2
Dependent Claim
110 words
A liquid jet recording method, which comprises: controlling thermal energy quantity to be generated by driving predetermined numbers of heat generating bodies selected in accordance with recording informations from a plurality of heat generating bodies which are arranged along flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, and each being driven independently of the other; causing said controlled thermal energy to act on the liquid in said liquid chamber to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from said discharge orifice for recording.
Claim 3
Dependent Claim
44 words
The liquid jet recording method as set forth in claim 1, wherein said liquid chamber is provided in a plurality of numbers, each being in a thin, rectilinear shape, arranged in parallel to each other, and communicatively connected with a common liquid feeding chamber.
Claim 4
Dependent Claim
108 words
A liquid jet recording method, which comprises: controlling thermal energy quantity to be generated by driving one heat generating body selected in accordance with recording informations from a plurality of heat generating bodies which are arranged along flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, and each being driven independently of the other; causing said controlled thermal energy to act on the liquid in said liquid chamber to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from said discharge orifice for recording.
Claim 5
Dependent Claim
108 words
A liquid jet recording method, which comprises: controlling thermal energy quantity to be generated by driving one heat generating body selected in accordance with recording informations from a plurality of heat generating bodies which are arranged along flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, and each being driven independently of the other; causing said controlled thermal energy to act on the liquid in said liquid chamber to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from said discharge orifice for recording.
Claim 6
Dependent Claim
43 words
The liquid jet recording method as set forth in claim 3, wherein said liquid chamber is provided in a plurality of numbers, each being in a thin, rectilinear shape, arranged in parallel each other, and communicatively connected with a common liquid feeding chamber.
Claim 7
Dependent Claim
106 words
A liquid jet recording method, which comprises: introducing an input signal, the energy level of which has been selected in accordance with recording informations, into at least one heat generating body provided along a flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, controlling thermal energy quantity generated from said heat generating body; causing said controlled thermal energy to heat the liquid in said liquid chamber to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from said discharge orifice for recording.
Claim 8
Dependent Claim
106 words
A liquid jet recording method, which comprises: introducing an input signal, the energy level of which has been selected in accordance with recording informations, into at least one heat generating body provided along a flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, controlling thermal energy quantity generated from said heat generating body; causing said controlled thermal energy to heat the liquid in said liquid chamber to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from said discharge orifice for recording.
Claim 9
Dependent Claim
43 words
The liquid jet recording method as set forth in claim 5, wherein said liquid chamber is provided in a plurality of numbers, each being in a thin, rectilinear shape, arranged in parallel each other, and communicatively connected with a common liquid feeding chamber.
Claim 10
Dependent Claim
91 words
A liquid jet recording method, which comprises: causing thermal energy generated by driving a plurality of heat generating bodies which are arranged along flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, and each being driven independently of the other, in the sequence of the innermost part of said flow path to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from said discharge orifice for recording.
Claim 11
Dependent Claim
91 words
A liquid jet recording method, which comprises: causing thermal energy generated by driving a plurality of heat generating bodies which are arranged along flow path in a liquid chamber communicatively connected with a discharge orifice for discharging and spattering liquid droplets in a predetermined direction, and each being driven independently of the other, in the sequence of the innermost part of said flow path to bring about instantaneous change in the state of the liquid to develop foams; and discharging and spattering the liquid droplets from said discharge orifice for recording.
Claim 12
Dependent Claim
21 words
The liquid jet recording method as set forth in claim 7, wherein said liquid chamber is in a thin, rectilinear shape.
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) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |