EP0440263A2
Expired / Lapsed
EP
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An ink jet recording apparatus
Assignee: Canon Inc
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Filing: 1991-02-01
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Granted: —
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Expires: 2011-02-01
Abstract
Abstract An ink jet recording apparatus for recording on a recording material (18) with ink includes an ink jet recording head mounting portion (23A) for mounting thereon an ink jet recording head (80) having an ejection outlet (11) converged in a direction of ink ejection and inclined relative to a base plate; a feeder for feeding the recording material; and a mounting device for mounting the ink jet recording head on the mounting portion so that the ink ejection outlet of the recording head is perpendicular to the recording material.
Inventors
- 👤 Hiromitsu Hirabayashi
- 👤 Atsushi Arai
- 👤 Hiroshi Tajika
- 👤 Noribumi Koitabashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 19:07
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2/14024; B41J2/145; B41J2/16; B41J2/1601; B41J2/1604; B41J2/1621; B41J2/1623; B41J2/1632; B41J2/1634; B41J2/1637; B41J2202/00; B41J2202/01; B41J2202/14
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
84 words
An ink jet recording apparatus for recording on a recording material with ink, comprising: an ink jet recording head mounting portion for mounting thereon an ink jet recording head having an ejection outlet converged in a direction of ink ejection and inclined relative to a base plate; feeding means for feeding the recording material; and mounting means for mounting the ink jet recording head on said mounting portion so that the ink ejection outlet of the recording head is perpendicular to the recording material.
Claim 2
Dependent Claim
32 words
An apparatus according to Claim 1, wherein the base plate is a heater board, and the ejection outlet is inclined relative to the heater board by approximately 5 - approximately 20 degrees.
Claim 3
Dependent Claim
27 words
An apparatus according to Claim 1, wherein the ejection direction is the same as a direction of a laser beam used when the recording head is produced.
Claim 4
Dependent Claim
45 words
An apparatus according to Claim 1, wherein the ejection outlet is formed on a top plate having an integral ejection outlet plate by projecting a laser beam at such an angle that the laser beam is not interfered by a part of the top plate.
Claim 5
Dependent Claim
19 words
An apparatus according to Claim 1, wherein said ejection outlet is tapered toward inside in the ink ejection direction.
Claim 6
Dependent Claim
18 words
An apparatus according to Claim 1, wherein said mounting portion has a carriage reciprocable in a predetermined direction.
Claim 7
Dependent Claim
25 words
An apparatus according to Claim 1, wherein said recording head is reciprocable and effects both during a forward movement and during a backward movement, thereof.
Claim 8
Dependent Claim
18 words
An apparatus according to Claim 1, wherein said mounting means detachably mounts the ink jet recording head thereon.
Claim 9
Dependent Claim
26 words
An apparatus according to Claim 1, wherein said ink jet head has an electrothermal transducer for producing thermal energy to eject the ink by thermal energy.
Claim 10
Dependent Claim
103 words
An ink jet recording apparatus, comprising: an ejection outlet; an ink passage communicating with said ejection outlet; an ejection energy generating element disposed in said ink passage; an ejection outlet plate formed at an end of the ink passage, said ejection outlet plate having the ejection outlet, wherein recording is effected by ejecting ink through said ejection outlet onto a recording material; wherein said ejection outlet has a size which is smaller at a side of said ejection outlet plate adjacent the recording material than the other, and the ejection outlet is inclined relative to a perpendicular line to said ejection outlet plate.
Claim 11
Dependent Claim
32 words
An apparatus according to Claim 10, wherein said ejection outlet is a through opening formed by projection of a high density beam to an ink passage side of said ejection outlet plate.
Claim 12
Dependent Claim
19 words
An apparatus according to Claim 10 or 11, wherein said ejection energy generating element is an electrothermal transducer element.
Claim 13
Dependent Claim
44 words
An apparatus according to Claim 12, wherein said electrothermal transducer element is supplied with electric energy to form a bubble by film boiling to eject the ink by ejection energy in the form of pressure wave resulting from production and contraction of the bubble.
Claim 14
Dependent Claim
86 words
An ink jet recording apparatus, comprising: an ejection outlet region controlling ejection region of ink; and ejection energy applying means to eject the ink; wherein said ejection outlet region changes the ink ejection direction from a direction in which said ejection energy applying means applies to the ink toward said ejection region; and wherein a recording material is disposed so that a distance between the recording material and said ejection outlet portion is minimum, and the ink ejecting direction is substantially perpendicular to the recording material.
Claim 15
Dependent Claim
37 words
An apparatus according to Claim 14, wherein the ejection energy is in the form of pressure wave produced by a bubble which is in turn produced by film boiling by thermal energy produced by an electrothermal transducer.
Claim 16
Dependent Claim
47 words
An apparatus according to Claim 14 or 15, wherein said ejection outlet portion is disposed at a vent portion of plural ink guiding recesses, and said ejection outlet portion is in the form of a through opening formed by a high density beam from the vent side.
Claim 17
Dependent Claim
123 words
An ink jet recording apparatus for effecting recording by ejection of ink onto a recording material, comprising: a base plate having plural ejection energy generating element for producing ejection energy to eject ink; a plate having plural grooves for cooperation with said base plate to provide ink passages corresponding to said ejection energy generating elements and having an integral ejection outlet forming portion in which ejection outlets are formed in communication with said ink passages by projection of excimer laser beam to such a side of the ejection outlet forming portion as is close to said ink passages; wherein the ejection outlets are faced to a recording material substantially perpendicular to a direction of the laser beam during formation of the ejection outlet.
References Cited (Backward Citations)
No citation records indexed.
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