Patent US4782347A successfully refreshed from Google Patents.
US4782347A
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Recording head using a plurality of ink storing portions and method of carrying out recording with the use of the same
Assignee: Canon Inc
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Filing: 1987-03-31
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Granted: 1988-11-01
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Expires: 2007-03-31
Abstract
Abstract A recording head comprises a housing for storing ink therein and a plurality of ink passage portions for allowing ink to pass from the housing to the exterior thereof. A plurality of heating elements are selectively heated so as to allow for the selective passage of ink through the plurality of ink passage portions. A spacer spaces apart the ink passage portions and a recording medium and also defines a temporary ink storing portion. In a recording method employing the recording head, the ink is heated by virtue of the heat of the heating elements, the ink having thus-reduced viscosity passing through the ink passage portions and transferred onto the recording medium, thereby obtaining a clearly recorded image.
Inventors
- 👤 Katsumi Kurematsu
- 👤 Akihiro Mouri
- 👤 Shuzo Kaneko
- 👤 Tsutomu Toyono
- 👤 Toshiya Yuasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:53
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17593
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
131 words
A recording head comprising: an ink housing for storing ink therein; a plurality of ink passage portions for allowing ink to pass from said ink housing means; a plurality of heating means capable of being selectively actuated for selectively passing ink through said plurality of ink passage portions; and spacer means disposed between said ink passage portions and a recording medium, said spacer means defining an ink containing portion for temporarily containing the ink passing through said ink passage portions, wherein said heating means is actuated for a first predetermined period of time to allow a quantity of ink to flow into said ink containing portion and for a second predetermined period of time to allow the quantity of ink to flow from said ink containing portion onto the recording medium.
Claim 2
Dependent Claim
131 words
A recording head comprising: an ink housing for storing ink therein; a plurality of ink passage portions for allowing ink to pass from said ink housing means; a plurality of heating means capable of being selectively actuated for selectively passing ink through said plurality of ink passage portions; and spacer means disposed between said ink passage portions and a recording medium, said spacer means defining an ink containing portion for temporarily containing the ink passing through said ink passage portions, wherein said heating means is actuated for a first predetermined period of time to allow a quantity of ink to flow into said ink containing portion and for a second predetermined period of time to allow the quantity of ink to flow from said ink containing portion onto the recording medium.
Claim 3
Dependent Claim
26 words
The recording head according to claim 1, wherein a depth of said spacer means is smaller than a radius of each of said ink passage portions.
Claim 4
Dependent Claim
28 words
The recording head according to claim 1, wherein said heating means is arranged to generate heat in response to a signal representative of an image to be transferred.
Claim 5
Dependent Claim
25 words
The recording head according to claim 1, wherein said spacer means is composed of a material having a low wettability with respect to said ink.
Claim 6
Dependent Claim
16 words
The recording head according to claim 1, wherein said spacer means is composed of fluorine resin.
Claim 7
Dependent Claim
26 words
The recording head according to claim 1, wherein said spacer means is composed of fluorine resin having a critical surface tension of 31 dyn/cm or less.
Claim 8
Dependent Claim
33 words
The recording head according to claim 1, wherein said heating means includes ink transfer heating means and ink supply heating means, both of which are selectively heated in response to an image signal.
Claim 9
Dependent Claim
27 words
The recording head according to claim 7, wherein said ink supply heating means is attached to an interior position and peripheral portion of said ink passage portions.
Claim 10
Dependent Claim
18 words
The recording head according to claim 1, wherein said spacer means is made of a heat resistant material.
Claim 11
Dependent Claim
17 words
The recording head according to claim 1, wherein said spacer means is made of a glass material.
Claim 12
Dependent Claim
26 words
The recording head according to claim 1, wherein said spacer means is composed of a glass material having a softening point of 150° C. or more.
Claim 13
Dependent Claim
20 words
The recording head according to claim 1, wherein said spacer means includes an opening through which said ink is passed.
Claim 14
Dependent Claim
24 words
The recording head according to claim 1, wherein said spacer means has one of slanted and curved surfaces along which said ink is passed.
Claim 15
Dependent Claim
21 words
The recording head according to claim 1, wherein said ink passage portions are formed by changing the thickness of said spacer.
Claim 16
Dependent Claim
24 words
The recording head according to claim 1, wherein said ink housing is stores ink which is one of semisolid, paste-like and highly viscous types.
Claim 17
Independent Claim
106 words
A method of carrying out recording with the use of a recording head comprising the steps of: moving an ink housing with respect to a recording medium with spacer means interposed therebetween, said housing including ink passage portions through which ink is passed and heating means for heating the ink; actuating said heating means for a first predetermined period of time so that a quantity of ink flows into an ink containing portion defined by said spacer means; and actuating said heating means for a second predetermined period of time so that the quantity of ink flows from said ink containing portion onto the recording medium.
Claim 18
Independent Claim
106 words
A method of carrying out recording with the use of a recording head comprising the steps of: moving an ink housing with respect to a recording medium with spacer means interposed therebetween, said housing including ink passage portions through which ink is passed and heating means for heating the ink; actuating said heating means for a first predetermined period of time so that a quantity of ink flows into an ink containing portion defined by said spacer means; and actuating said heating means for a second predetermined period of time so that the quantity of ink flows from said ink containing portion onto the recording medium.
Claim 19
Dependent Claim
31 words
The method according to claim 16, further comprising the step of providing said spacer means with a depth which is smaller than a radius of each of said ink passage portions.
Claim 20
Dependent Claim
24 words
The method according to claim 16, wherein said heating means generates heat in response to a signal representative of an image to be transferred.
Claim 21
Dependent Claim
21 words
The method according to claim 16, wherein said spacer means is a material having low wettability with respect to the ink.
Claim 22
Dependent Claim
14 words
The method according to claim 16, wherein said spacer means is a fluorine resin.
Claim 23
Dependent Claim
24 words
The method according to claim 16, wherein said spacer means is a fluorine resin having a critical surface tension of 31 dyn/cm or less.
Claim 24
Dependent Claim
45 words
The method according to claim 16, wherein said heating means includes ink transfer heating means and ink supply heating means, and further comprising the steps of selectively heating said ink transfer heating means and said ink supply heating means in repsonse to an image signal.
Claim 25
Dependent Claim
31 words
The method according to claim 16, further comprising the step of providing ink supply heating means to one of an interior portion and a peripheral portion of said ink passage portions.
Claim 26
Dependent Claim
15 words
The method according to claim 16, wherein said spacer means is a heat reisitant material.
Claim 27
Dependent Claim
14 words
The method according to claim 16, wherein said spacer means is a glass material.
Claim 28
Dependent Claim
23 words
The method according to claim 16, wherein said spacer means is a glass material having a softening point of 150° C. or more.
Claim 29
Dependent Claim
23 words
The method according to claim 16, further comprising the step of providing openings in said spacer means through which the ink is passed.
Claim 30
Dependent Claim
26 words
The method according to claim 16, further comprising the step of providing slanted and curved surfaces in said spacer means along which the ink is passed.
Claim 31
Dependent Claim
27 words
The recording head and the method according to claim 16, further comprising the step of forming the ink passage portions by changing the thickness of said spacer.
Claim 32
Dependent Claim
22 words
The method according to claim 16, wherein said ink housing stores ink which is one of semisolid, paste-like and highly viscous types.
Claim 33
Dependent Claim
122 words
A recording head comprising: an ink housing capable of storing ink therein; porous heating means disposed on said ink housing nad being selectively heated in response to an image signal; and spacer means disposed between said porous heating means and a recording medium, said spacer means defining a plurality of discrete ink containing portions which temporarily contain a quanity of ink prior to the ink being emitted onto a recording medium, wherein said heating means is actuated for a first predetermined period of time to allow the quantity of ink to flow into said ink containing portion and for a second predetermined period of time to allow the quantity of ink to flow from said ink containing portion onto the recording medium.
Claim 34
Dependent Claim
122 words
A recording head comprising: an ink housing capable of storing ink therein; porous heating means disposed on said ink housing nad being selectively heated in response to an image signal; and spacer means disposed between said porous heating means and a recording medium, said spacer means defining a plurality of discrete ink containing portions which temporarily contain a quanity of ink prior to the ink being emitted onto a recording medium, wherein said heating means is actuated for a first predetermined period of time to allow the quantity of ink to flow into said ink containing portion and for a second predetermined period of time to allow the quantity of ink to flow from said ink containing portion onto the recording medium.
Claim 35
Independent Claim
106 words
A method of recording comprising the steps of: bringing a plurality of ink containing portions into contact with a recording medium, said plurality of ink containing portions descretely formed proximate to porous heating means and in fluid communication with an ink supply tank; causing relative movement between said ink containing portions and a recording medium; actuating said heating means for a first predetermined period of time so that a quantity of ink flows into said ink containing portions; and actuating said heating means for a second predetermined period of time so that the quantity of ink flows from said ink containing portions onto the recording medium.
Claim 36
Independent Claim
106 words
A method of recording comprising the steps of: bringing a plurality of ink containing portions into contact with a recording medium, said plurality of ink containing portions descretely formed proximate to porous heating means and in fluid communication with an ink supply tank; causing relative movement between said ink containing portions and a recording medium; actuating said heating means for a first predetermined period of time so that a quantity of ink flows into said ink containing portions; and actuating said heating means for a second predetermined period of time so that the quantity of ink flows from said ink containing portions onto the recording medium.
Claim 37
Dependent Claim
138 words
A recording head comprising: an ink housing capable of storing ink therein; an electrically insulated substrate disposed on said ink housing; heating means disposed on said housing and being selectively heated in response to an image signal; a plurality of discrete ink containing portions disposed adjacent said heating means for temporarily containing the ink; ink passage means providing communication between the interior of said ink housing and said ink containing portions; and ink supplying means for supplying ink from said ink housing to said ink containing portions, wherein said heating means is actuated for a first predetermined period of time to allow a quantity of ink to flow into said ink containing portions and for a second predetermined period of time to allow the quantity of ink to flow from said ink containing portions onto the recording medium.
Claim 38
Dependent Claim
138 words
A recording head comprising: an ink housing capable of storing ink therein; an electrically insulated substrate disposed on said ink housing; heating means disposed on said housing and being selectively heated in response to an image signal; a plurality of discrete ink containing portions disposed adjacent said heating means for temporarily containing the ink; ink passage means providing communication between the interior of said ink housing and said ink containing portions; and ink supplying means for supplying ink from said ink housing to said ink containing portions, wherein said heating means is actuated for a first predetermined period of time to allow a quantity of ink to flow into said ink containing portions and for a second predetermined period of time to allow the quantity of ink to flow from said ink containing portions onto the recording medium.
Claim 39
Dependent Claim
15 words
The recording head according to claim 33, wherein said ink supplying means is pressurizing means.
Claim 40
Dependent Claim
25 words
The recording head according to claim 33, wherein a depth of said ink containing portion is smaller than a radius of said ink passage hole.
Claim 41
Independent Claim
130 words
A method of carrying out recording with the use of a recording head including a plurality of discrete ink containing portions communicating with an interior of an ink housing; ink supplying means for supplying ink to said ink containing portions; and heating means for heating the ink, which comprises the steps of: bringing said ink containing portions into contact with a recording medium; moving said ink containing portions with respect to said recording medium; actuating said heating means for a first predetermined period of time so that a quantity of ink flows into said ink containing portions defined by said spacer means; and actuating said heating means for a second predetermined period of time so that the quantity of ink flows from said ink containing portions onto the recording medium.
Claim 42
Independent Claim
130 words
A method of carrying out recording with the use of a recording head including a plurality of discrete ink containing portions communicating with an interior of an ink housing; ink supplying means for supplying ink to said ink containing portions; and heating means for heating the ink, which comprises the steps of: bringing said ink containing portions into contact with a recording medium; moving said ink containing portions with respect to said recording medium; actuating said heating means for a first predetermined period of time so that a quantity of ink flows into said ink containing portions defined by said spacer means; and actuating said heating means for a second predetermined period of time so that the quantity of ink flows from said ink containing portions onto the recording medium.
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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) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |