EP0347856A1
Expired / Lapsed
EP
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Ink jet recording head
Assignee: Canon Inc
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Filing: 1989-06-20
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Granted: —
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Expires: 2009-06-20
Abstract
Abstract An ink jet recording head comprises a discharge port (5) for discharging ink therethrough, a liquid path (4) communicating with the discharge port and having a section at which energy for discharging ink effects ink and a discharge energy generating member (7) for generating energy for discharging ink. The liquid path (4) and the discharge port (5) are defined in such a manner that a portion defining an ink flow to the section of the liquid path is parallel to and not on the same straight line of a center axis of an opening of the discharge port (5), and the discharge port are defined by the same material.
Inventors
- 👤 Hiromichi Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 18:26
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2/14032; B41J2/1404; B41J2002/14379; B41J2002/14387; B41J2202/00; B41J2202/01; B41J2202/11
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
104 words
An ink jet recording head comprising: a discharge port for discharging ink therethrough; a liquid path communicating with said discharge port and having a section at which energy for discharging ink effects ink; and a discharge energy generating member for generating energy for discharging ink, wherein said liquid path and said discharge port are defined in such a manner that a portion defining an ink flow to said section of said liquid path is parallel to and not on the same straight line of a center axis of an opening of said discharge port, and said discharge port are defined by the same material.
Claim 2
Dependent Claim
104 words
An ink jet recording head comprising: a discharge port for discharging ink therethrough; a liquid path communicating with said discharge port and having a section at which energy for discharging ink effects ink; and a discharge energy generating member for generating energy for discharging ink, wherein said liquid path and said discharge port are defined in such a manner that a portion defining an ink flow to said section of said liquid path is parallel to and not on the same straight line of a center axis of an opening of said discharge port, and said discharge port are defined by the same material.
Claim 3
Dependent Claim
79 words
An ink jet recording head according to claim 1, further comprising a first layer for defining a bottom of said discharge port and said liquid path defining ink flow to said effecting section on a base plate having said discharge energy generating member, a second layer defining a side wall of said discharge port and a third layer defining a lid portion of said discharge port, wherein said first, second and third layer are defined by the same material.
Claim 4
Dependent Claim
20 words
An ink jet recording head according to cliam 1, wherein said discharge energy generating member is a heat generating member.
Claim 5
Dependent Claim
20 words
An ink jet recording head according to cliam 1, wherein said discharge energy generating member is a heat generating member.
Claim 6
Dependent Claim
20 words
An ink jet recording head according to claim 1, wherein said discharge port is defined by photosensitive cured resin layer.
Claim 7
Dependent Claim
88 words
An ink jet recording head comprising: a discharge port for discharging ink therethrough; a liquid path communicating with said discharge port; and a discharge energy generating member provided responsive to said discharge port for generating discharge energy utilized for discharging ink, wherein said liquid path has a section at which energy for discharging ink effects ink, and center line of said liquid path including at least said effecting section is parallel to and on a different straight line with a center axis an opening of said discharge port.
Claim 8
Dependent Claim
88 words
An ink jet recording head comprising: a discharge port for discharging ink therethrough; a liquid path communicating with said discharge port; and a discharge energy generating member provided responsive to said discharge port for generating discharge energy utilized for discharging ink, wherein said liquid path has a section at which energy for discharging ink effects ink, and center line of said liquid path including at least said effecting section is parallel to and on a different straight line with a center axis an opening of said discharge port.
Claim 9
Dependent Claim
20 words
An ink jet recording head according to claim 5, wherein said discharge energy generating member is a heat generating member.
Claim 10
Dependent Claim
16 words
An ink jet recording head according to claim 5, wherein said discharge energy is thermal energy.
Claim 11
Dependent Claim
19 words
An ink jet recording head according to claim 5, wherein said discharge port is defined by the same material.
Claim 12
Dependent Claim
20 words
An ink jet recording head according to cliam 5, wherein said discharge port is defined by photosensitive cured resin layer.
Claim 13
Dependent Claim
20 words
An ink jet recording head according to cliam 5, wherein said discharge port is defined by photosensitive cured resin layer.
Claim 14
Dependent Claim
23 words
An ink jet recording head according to claim 5, wherein said discharge port is defined by stacking a first, second and third layers.
Claim 15
Dependent Claim
20 words
An ink jet recording head according to claim 10, wherein said first, second and third layers are photosensitive cured resin.
Claim 16
Dependent Claim
20 words
An ink jet recording head according to claim 5, wherein said liquid path has at least a partially arcuated section.
Claim 17
Dependent Claim
20 words
An ink jet recording head according to claim 5, wherein said liquid path has at least a partially bending section.
Claim 18
Dependent Claim
18 words
An ink jet recording head according to claim 5, wherein a plurality of said discharge ports are provided.
Claim 19
Dependent Claim
19 words
An ink jet recording head according to claim 5, wherein said liquid path communicates with a common liquid chamber.
References Cited (Backward Citations)
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