US4330787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid jet recording device
Assignee: Canon Inc
•
Filing: 1979-10-15
•
Granted: 1982-05-18
•
Expires: 1999-10-15
Abstract
Abstract A liquid jet recording device comprises: a recording head having liquid discharging orifice for discharging liquid in a predetermined direction, a heat generating member, a heat acting zone where heat energy generated from the heat generating member acts on the liquid, and liquid feeding path for feeding the liquid to the heat acting zone; and drive signal feeding means for generating drive signals to drive said heat generating member to discharge the liquid in the predetermined direction, wherein the direction of the liquid flowing into said heat acting zone from said liquid feeding path differs from the direction of the liquid flowing out of said heat acting zone toward said liquid discharging orifice.
Inventors
- 👤 Yasushi Sato
- 👤 Yasushi Takatori
- 👤 Toshitami Hara
- 👤 Yoshiaki Shirato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2/14024; B41J2/14032; B41J2/1404; B41J2/1433; B41J2002/14387
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
171 words
A liquid jet recording device which comprises: a recording head having liquid discharging orifice for discharging liquid in a predetermined direction, a heat generating member, a heat acting zone where heat energy generated from the heat generating member acts on the liquid, and liquid feeding path for feeding the liquid to the heat acting zone, wherein said recording head is constructed, at least, with a heat generating base plate, on which the heat generating member is provided; a liquid feeding path plate, and a liquid discharging path plate, on each of which a multitude of fine grooves to provide the liquid discharging orifice, liquid feeding path, and heat acting zone are provided; and drive signal feeding means for generating drive signals to drive said heat generating member to discharge the liquid in the predetermined direction, wherein the direction of the liquid flowing into said heat acting zone from said liquid feeding path differs from the direction of the liquid flowing out of said heat acting zone toward said liquid discharging orifice.
Claim 2
Dependent Claim
171 words
A liquid jet recording device which comprises: a recording head having liquid discharging orifice for discharging liquid in a predetermined direction, a heat generating member, a heat acting zone where heat energy generated from the heat generating member acts on the liquid, and liquid feeding path for feeding the liquid to the heat acting zone, wherein said recording head is constructed, at least, with a heat generating base plate, on which the heat generating member is provided; a liquid feeding path plate, and a liquid discharging path plate, on each of which a multitude of fine grooves to provide the liquid discharging orifice, liquid feeding path, and heat acting zone are provided; and drive signal feeding means for generating drive signals to drive said heat generating member to discharge the liquid in the predetermined direction, wherein the direction of the liquid flowing into said heat acting zone from said liquid feeding path differs from the direction of the liquid flowing out of said heat acting zone toward said liquid discharging orifice.
Claim 3
Dependent Claim
33 words
The liquid jet recording device as set forth in claim 1, wherein an ink feeding chamber block for feeding the liquid to said liquid feeding path in said recording head is further provided.
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) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |