US4356499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink-jet recording device
Assignee: Ricoh Co Ltd
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Filing: 1980-11-19
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Granted: 1982-10-26
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Expires: 2000-11-19
Abstract
Abstract An ink-jet recording device in which the pressurized ink is supplied from a single source of pressurized ink to an ink manifold with one inlet port and a plurality of outlet ports each of which is connected to one end of a flexible pipe the other end of which is connected to an ink emission head, whereby the pressurized ink is supplied from the ink manifold to the ink emission head. The ink manifold is hollow and the inlet and outlet ports are communicated with each other through the hollow space. Alternatively, inserted into the ink manifold is an ink distributor having a plurality of branches which are in alignment with said outlet ports and are spaced apart from each other. An ink flow control means is disposed in each branch. The ink manifold is provided with a common ink passage or chamber which is communicated with an air vent means so that air bubbles trapped in the ink passage or chamber may be vented.
Inventors
- 👤 Yutaka Kodama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:55
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/015; B41J2/02; G; G01; G01D; G01D15/00; G01D15/16; G01D15/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
113 words
An ink-jet recording device of the type in which ink under pressure is supplied to a plurality of ink emission heads which in turn emit ink jets modulated by periodic pressure variations of a piezoelectric element associated therewith for recording, characterized in that the ink under pressure is supplied from a single source of pressurized ink to an ink manifold with one inlet port and a plurality of outlet ports; and one end of a flexible pipe is connected to each of said outlet ports while the other end thereof is connected to an ink emission head, whereby the ink under pressure is supplied to said ink emission head from said ink manifold.
Claim 2
Dependent Claim
113 words
An ink-jet recording device of the type in which ink under pressure is supplied to a plurality of ink emission heads which in turn emit ink jets modulated by periodic pressure variations of a piezoelectric element associated therewith for recording, characterized in that the ink under pressure is supplied from a single source of pressurized ink to an ink manifold with one inlet port and a plurality of outlet ports; and one end of a flexible pipe is connected to each of said outlet ports while the other end thereof is connected to an ink emission head, whereby the ink under pressure is supplied to said ink emission head from said ink manifold.
Claim 3
Dependent Claim
34 words
An ink-jet recording device as set forth in claim 1 further characterized in that said ink manifold is hollow and said inlet and outlet ports are communicated with each other through the hollow space.
Claim 4
Dependent Claim
40 words
An ink-jet recording device as set forth in claim 1 further characterized in that said ink manifold includes an ink distributor with a plurality of branches which are aligned with said outlet ports and are spaced apart from each other.
Claim 5
Dependent Claim
42 words
An ink-jet recording device as set forth in claim 1 or 3 further characterized in that said inlet port is communicated with said outlet ports through ink passages, and an ink flow control means is disposed in each of said ink passages.
Claim 6
Dependent Claim
24 words
An ink-jet recording device as set forth in claim 4 further characterized in that said ink flow control means consists of a stop valve.
Claim 7
Dependent Claim
25 words
An ink-jet recording device as set forth in claim 4 further characterized in that said ink flow control means consists of a pressure regulating valve.
Claim 8
Dependent Claim
42 words
An ink-jet recording device as set forth in claim 4 further characterized in that said ink flow control means consists of a stop and pressure-regulating valve capable of regulating the pressure of ink until said stop and pressure-regulating valve is widely opened.
Claim 9
Dependent Claim
45 words
An ink-jet recording device as set forth in claim 5, 6 or 7 further characterized in that one end of a flexible pipe is connected to each outlet port of said ink manifold while the other end thereof is connected to an ink emission head.
Claim 10
Dependent Claim
42 words
An ink-jet recording device as set forth in claims 1 through 8 further characterized in that said ink manifold is formed with a common ink passage, and the top wall of said common ink passage is communicated with an air vent means.
Claim 11
Dependent Claim
93 words
An ink jet recording device of the type in which ink under pressure is supplied to a plurality of ink emission heads which in turn emit ink jets for recording wherein the ink under pressure is supplied from a single source of pressurized ink to an ink manifold with an inlet port and a plurality of outlet ports; and one end of a flexible pipe is connected to each of said outlet ports while the other end thereof is connected to an ink jet emission head which is adjustable in the horizontal direction.
Claim 12
Dependent Claim
93 words
An ink jet recording device of the type in which ink under pressure is supplied to a plurality of ink emission heads which in turn emit ink jets for recording wherein the ink under pressure is supplied from a single source of pressurized ink to an ink manifold with an inlet port and a plurality of outlet ports; and one end of a flexible pipe is connected to each of said outlet ports while the other end thereof is connected to an ink jet emission head which is adjustable in the horizontal direction.
Claim 13
Dependent Claim
91 words
An ink jet recording device of the type in which ink under pressure is supplied to a plurality of ink emission heads which in turn emit ink jets for recording wherein the ink under pressure is supplied from a single source of pressurized ink to an ink manifold with an inlet port and a plurality of outlet ports; and one end of a flexible pipe is connected to each of said outlet ports while the other end thereof is connected to an emission head which is adjustable in the vertical direction.
Claim 14
Dependent Claim
91 words
An ink jet recording device of the type in which ink under pressure is supplied to a plurality of ink emission heads which in turn emit ink jets for recording wherein the ink under pressure is supplied from a single source of pressurized ink to an ink manifold with an inlet port and a plurality of outlet ports; and one end of a flexible pipe is connected to each of said outlet ports while the other end thereof is connected to an emission head which is adjustable in the vertical direction.
Claim 15
Dependent Claim
94 words
An ink jet recording device of the type in which ink under pressure is supplied to a plurality of ink emission heads which in turn emit ink jets for recording wherein the ink under pressure is supplied from a single source of pressurized ink to an ink manifold with an inlet port and a plurality of outlet ports; and one end of a flexible pipe is connected to each of said outlet ports while the other end thereof is connected to an ink jet emission head adjustable in the horizontal and the vertical direction.
Claim 16
Dependent Claim
94 words
An ink jet recording device of the type in which ink under pressure is supplied to a plurality of ink emission heads which in turn emit ink jets for recording wherein the ink under pressure is supplied from a single source of pressurized ink to an ink manifold with an inlet port and a plurality of outlet ports; and one end of a flexible pipe is connected to each of said outlet ports while the other end thereof is connected to an ink jet emission head adjustable in the horizontal and the vertical direction.
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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) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |