Patent US4727384A successfully refreshed from Google Patents.
US4727384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid jet recording head
Assignee: Canon Inc
•
Filing: 1985-07-18
•
Granted: 1988-02-23
•
Expires: 2005-07-18
Abstract
Abstract A liquid jet recording head comprises a recording head element having a discharge port for discharging liquid to form flying droplets and an energy generating element for generating an energy to form the droplets, an ink tank for storing the liquid to be supplied into the recording head element, and wirings electrically connected to the energy generating element. Th wirings are embedded in a member constituting the ink tank, and the recording head element is arranged on a wall of the ink tank.
Inventors
- 👤 Hisanori Tsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:41
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/17526; B41J2/135; B41J2/14; B41J2002/14387
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
145 words
A liquid jet recording head comprising: a recording element having a discharge port for discharging liquid to form flying droplets, an energy generating element for generating energy to form the droplets and a first terminal electrically connected to said energy generating element for supplying an electrical signal to said energy generating element; an ink tank for storing liquid to be supplied to said recording element, wherein said recording element is arranged on a wall of said ink tank and said ink tank includes a second terminal electrically connected to said first terminal; wiring electrically connected to said second terminal to supply an electrical signal to said energy generating element through said terminals, at least a portion of said wiring being embedded in said ink tank; and recording element positioning means arranged on said ink tank to position said recording element relative to said ink tank.
Claim 2
Dependent Claim
145 words
A liquid jet recording head comprising: a recording element having a discharge port for discharging liquid to form flying droplets, an energy generating element for generating energy to form the droplets and a first terminal electrically connected to said energy generating element for supplying an electrical signal to said energy generating element; an ink tank for storing liquid to be supplied to said recording element, wherein said recording element is arranged on a wall of said ink tank and said ink tank includes a second terminal electrically connected to said first terminal; wiring electrically connected to said second terminal to supply an electrical signal to said energy generating element through said terminals, at least a portion of said wiring being embedded in said ink tank; and recording element positioning means arranged on said ink tank to position said recording element relative to said ink tank.
Claim 3
Dependent Claim
23 words
A liquid jet recording head according to claim 1, wherein said ink tank includes an ink tank outer frame and a rear cover.
Claim 4
Dependent Claim
19 words
A liquid jet recording head according to claim 2, wherein said ink tank outer frame is made of resin.
Claim 5
Dependent Claim
18 words
A liquid jet recording head according to claim 1, wherein said ink tank has an ink bag therein.
Claim 6
Dependent Claim
27 words
A liquid jet recording head according to claim 4, wherein said ink tank has a communication unit for communicating a space in said ink tank with atmosphere.
Claim 7
Dependent Claim
24 words
A liquid jet recording head according to claim 1, further comprising a communication unit for communicating the inside of said ink tank with atmosphere.
Claim 8
Dependent Claim
20 words
A liquid jet recording head according to claim 1, wherein said positioning means also serves as recording head positioning means.
Claim 9
Dependent Claim
20 words
A liquid jet recording head according to claim 1, wherein positioning means is arranged on a recording element mount plane.
Claim 10
Dependent Claim
20 words
A liquid jet recording head according to claim 8, wherein said positioning means is integrally formed with said ink tank.
Claim 11
Dependent Claim
20 words
A liquid jet recording head according to claim 1, wherein said positioning means is integrally formed with said ink tank.
Claim 12
Dependent Claim
18 words
A liquid jet recording head according to claim 1, wherein said energy generating element includes an electro-thermal transducer.
Claim 13
Dependent Claim
37 words
A liquid jet recording head according to claim 11, wherein said electro-thermal transducer includes a heat generating resistive layer arranged on a support and at least one pair of opposing electrodes electrically connected to said resistive layer.
Claim 14
Dependent Claim
21 words
A liquid jet recording head according to claim 1, wherein an ink supply hole is formed in said ink tank .
Claim 15
Dependent Claim
25 words
A liquid jet recording head according to claim 1, wherein the electrical connection area of said recording element and said wiring is sealed by resin.
Claim 16
Dependent Claim
149 words
A liquid jet recording head comprising: a recording element having a discharge port for discharging liquid to form flying droplets, an energy generating element for generating energy to form the droplets and a first terminal electrically connected to said energy generating element for supplying an electrical signal to said energy generating element; an ink tank for storing liquid to be supplied to said recording element, wherein said recording element is arranged on a wall of said ink tank and said ink tank includes a second terminal electrically connected to said first terminal; wiring electrically connected to said second terminal to supply an electrical signal to said energy generating element through said terminals, at least a portion of said wiring being integrally molded in a wall of said ink tank; and recording element positioning means arranged on said ink tank to position said recording element relative to said ink tank.
Claim 17
Dependent Claim
149 words
A liquid jet recording head comprising: a recording element having a discharge port for discharging liquid to form flying droplets, an energy generating element for generating energy to form the droplets and a first terminal electrically connected to said energy generating element for supplying an electrical signal to said energy generating element; an ink tank for storing liquid to be supplied to said recording element, wherein said recording element is arranged on a wall of said ink tank and said ink tank includes a second terminal electrically connected to said first terminal; wiring electrically connected to said second terminal to supply an electrical signal to said energy generating element through said terminals, at least a portion of said wiring being integrally molded in a wall of said ink tank; and recording element positioning means arranged on said ink tank to position said recording element relative to said ink tank.
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) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |