US4419678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink jet recording apparatus
Assignee: Canon Inc
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Filing: 1980-10-09
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Granted: 1983-12-06
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Expires: 2000-10-09
Abstract
Abstract An ink jet recording apparatus has a recording liquid container storing recording liquid therein, a recording head which is supplied with the recording liquid from the container and which discharges the recording liquid to effect printing on printing paper, and a carriage on which the recording head and the recording liquid container are mounted. The recording head is secured to the carriage. The apparatus further has a recording liquid supply member having one opening connected to the recording head. The other opening of the recording liquid supply member is tightly insertable into the recording liquid container. By inserting the recording liquid supply member into the recording liquid container, the recording liquid is supplied from the recording liquid container to the recording head through the recording liquid supply member.
Inventors
- 👤 Yukio Kasugayama
- 👤 Koji Terasawa
- 👤 Yoshihumi Hattori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:58
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
141 words
An ink jet recording apparatus comprising: recording means for discharging recording liquid in response to an electrical signal; a supply tube, having a tip end, for feeding the recording liquid to said recording means; and recording liquid reservoir means for storing the recording liquid therein, said reservoir means comprising a wall surface, a first elastic blind portion provided in said wall surface for receiving said tip end of said supply tube for insertion thereinto, an atmosphere communicating member, and a second elastic blind portion provided in said wall surface for receiving said atmosphere communicating member for insertion thereinto to communicate between the interior of said reservoir means and the atmosphere, and upon said atmosphere communicating member being inserted into said second blind position, said reservoir means further comprising two chambers for preventing leakage of the recording liquid to the outside thereof.
Claim 2
Dependent Claim
141 words
An ink jet recording apparatus comprising: recording means for discharging recording liquid in response to an electrical signal; a supply tube, having a tip end, for feeding the recording liquid to said recording means; and recording liquid reservoir means for storing the recording liquid therein, said reservoir means comprising a wall surface, a first elastic blind portion provided in said wall surface for receiving said tip end of said supply tube for insertion thereinto, an atmosphere communicating member, and a second elastic blind portion provided in said wall surface for receiving said atmosphere communicating member for insertion thereinto to communicate between the interior of said reservoir means and the atmosphere, and upon said atmosphere communicating member being inserted into said second blind position, said reservoir means further comprising two chambers for preventing leakage of the recording liquid to the outside thereof.
Claim 3
Dependent Claim
35 words
An ink jet recording apparatus according to claim 1, further comprising a vent filter for dividing the interior of said recording liquid reservoir into said two chambers and preventing passage of the recording liquid therethrough.
Claim 4
Dependent Claim
136 words
An ink jet recording apparatus comprising: a recording liquid reservoir portion for storing the recording liquid and having an upper wall; a first tube and a second tube projected upwardly through said upper wall and arranged with a lower end of the first tube disposed below that of the second tube within said reservoir portion; recording means for discharging the recording liquid from said recording liquid reservoir portion from a forward end thereof and having a supply tube inserted into the interior of said recording liquid reservoir portion; and a recording liquid container of tightly sealed construction, said container mounted on an upper surface of said upper wall of said recording liquid reservoir portion, with said first and said second tubes inserted into the interior thereof for supplying recording liquid to said recording liquid reservoir portion.
Claim 5
Dependent Claim
136 words
An ink jet recording apparatus comprising: a recording liquid reservoir portion for storing the recording liquid and having an upper wall; a first tube and a second tube projected upwardly through said upper wall and arranged with a lower end of the first tube disposed below that of the second tube within said reservoir portion; recording means for discharging the recording liquid from said recording liquid reservoir portion from a forward end thereof and having a supply tube inserted into the interior of said recording liquid reservoir portion; and a recording liquid container of tightly sealed construction, said container mounted on an upper surface of said upper wall of said recording liquid reservoir portion, with said first and said second tubes inserted into the interior thereof for supplying recording liquid to said recording liquid reservoir portion.
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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) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |