Patent US1964699A successfully refreshed from Google Patents.
Patent EP0352468A2 successfully refreshed from Google Patents.
EP0352468A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for producing an orifice plate for an ink jet recording head
Assignee: Canon Inc
•
Filing: 1989-06-20
•
Granted: —
•
Expires: 2009-06-20
Abstract
Abstract This specification discloses an orifice plate (12) provided with openings capable of defining discharge ports (13) for discharging the ink of a recording head (11) carried on an ink jet recording apparatus, characterized by the provision of positioning portions (14) usable for the positioning of the discharge ports (13) in the ink jet recording apparatus. The specification also discloses an ink jet recording head using such orifice plate (12), and an ink jet recording apparatus carrying the head (11) thereon.
Inventors
- 👤 Yutaka Koizumi
- 👤 Minoru Nozawa
- 👤 Toshihiro Mori
- 👤 Atsushi Saito
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:49
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1621; B41J2/1631; B41J2/162; B41J2/1626; B41J2/1632; B41J2/1637; B41J2/14; B41J2002/14475; B41J2202/00; B41J2202/01; B41J2202/21
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
45 words
An orifice plate provided with openings capable of defining discharge ports for discharging the ink of a recording head carried on an ink jet recording apparatus, characterized by the provision of positioning portions usable for positioning said discharge ports in said ink jet recording apparatus.
Claim 2
Dependent Claim
45 words
An orifice plate provided with openings capable of defining discharge ports for discharging the ink of a recording head carried on an ink jet recording apparatus, characterized by the provision of positioning portions usable for positioning said discharge ports in said ink jet recording apparatus.
Claim 3
Dependent Claim
26 words
An orifice plate according to Claim 1, wherein said openings and said positioning portions are formed at a time in a predetermined positional relation by photolithography.
Claim 4
Dependent Claim
13 words
An orifice plate according to Claim 1, wherein said positioning portions are through-holes.
Claim 5
Dependent Claim
27 words
An orifice plate according to Claim 1, wherein said positioning portions are provided at the opposite ends of said orifice plate with the discharge ports interposed therebetween.
Claim 6
Dependent Claim
15 words
An orifice plate according to Claim 4, wherein said positioning portions are of different shapes.
Claim 7
Dependent Claim
12 words
An orifice plate according to Claim 1, wherein said openings are slit-shaped.
Claim 8
Dependent Claim
55 words
A recording head for use in an ink jet recording apparatus provided with discharge energy generating elements generating energy for discharging ink and an orifice plate formed with a plurality of openings through which the ink passes, said orifice plate being provided with positioning portions for positioning said recording head relative to said recording apparatus.
Claim 9
Dependent Claim
55 words
A recording head for use in an ink jet recording apparatus provided with discharge energy generating elements generating energy for discharging ink and an orifice plate formed with a plurality of openings through which the ink passes, said orifice plate being provided with positioning portions for positioning said recording head relative to said recording apparatus.
Claim 10
Dependent Claim
14 words
A recording head according to Claim 7, wherein said positioning portions are cut-away positions.
Claim 11
Dependent Claim
13 words
A recording head according to Claim 7, wherein said positioning portions are through-holes.
Claim 12
Dependent Claim
29 words
A recording head according to Claim 7, wherein said positioning portions are provided in the portions of said orifice plate which protrude from the body of said recording head.
Claim 13
Dependent Claim
26 words
A recording head according to Claim 7, wherein said positioning portions are provided at the opposite ends of said orifice plate with said openings interposed therebetween.
Claim 14
Dependent Claim
15 words
A recording head according to Claim 11, wherein said positioning portions are of different shapes.
Claim 15
Dependent Claim
12 words
A recording head according to Claim 7, wherein said openigns are slit-shaped.
Claim 16
Dependent Claim
21 words
A recording head according to Claim 13, wherein said openings are provided corresponding to said plurality of discharge energy generating elements.
Claim 17
Dependent Claim
17 words
A recording head according to Claim 7, wherein said discharge energy generating elements are electro-thermal converting members.
Claim 18
Dependent Claim
32 words
A recording head according to Claim 7, which is a head in which ink is discharged by said discharge energy generating elements by the utilization of heat energy to thereby effect recording.
Claim 19
Dependent Claim
32 words
A recording head according to Claim 7, wherein the discharge ports of said recording head are defined substantially by the openings formed in said orifice plate and a liquid path wall member.
Claim 20
Dependent Claim
70 words
An ink jet recording apparatus characterized by the provision of: a recording head having a discharge port plate member having openings for forming discharge ports for discharging ink and positioning portions, and discharge energy generating elements generating energy available for discharging the ink from said discharge ports; and recording head positioning means provided correspondingly to said positioning portions for effecting the positioning of said recording head in said recording apparatus.
Claim 21
Dependent Claim
70 words
An ink jet recording apparatus characterized by the provision of: a recording head having a discharge port plate member having openings for forming discharge ports for discharging ink and positioning portions, and discharge energy generating elements generating energy available for discharging the ink from said discharge ports; and recording head positioning means provided correspondingly to said positioning portions for effecting the positioning of said recording head in said recording apparatus.
Claim 22
Dependent Claim
16 words
An ink jet recording apparatus according to Claim 18, wherein said positioning portions are cut-away portions.
Claim 23
Dependent Claim
15 words
An ink jet recording apparatus according to Claim 18, wherein said positioning portions are through-holes.
Claim 24
Dependent Claim
31 words
An ink jet recording apparatus according to Claim 18, wherein said positioning portions are provided in the portions of said plate member which protrude from the body of said recording head.
Claim 25
Dependent Claim
28 words
An ink jet recording apparatus according to Claim 18, wherein said positioning portions are provided at the opposite ends of said plate member with said openings interposed therebetween.
Claim 26
Dependent Claim
17 words
An ink jet recording apparatus according to Claim 22, wherein said positioning portions are of different shapes.
Claim 27
Dependent Claim
14 words
An ink jet recording apparatus according to Claim 18, wherein said openings are slit-shaped.
Claim 28
Dependent Claim
23 words
An ink jet recording apparatus according to Claim 24, wherein said openings are provided correspondingly to said plurality of discharge energy generating elements.
Claim 29
Dependent Claim
19 words
An ink jet recording apparatus according to Claim 18, wherein said discharge energy generating elements are electro-thermal converting members.
Claim 30
Dependent Claim
37 words
An ink jet recording apparatus according to claim 18, wherein said recording head is a head in which ink is discharged by said discharge energy generating elements by the utilization of heat energy to thereby effect recording.
Claim 31
Dependent Claim
34 words
An ink jet recording apparatus according to Claim 18, wherein the discharge ports of said recording head are defined substantially by the openings formed in said plate member and a liquid path wall member.
Claim 32
Dependent Claim
19 words
An ink jet recording apparatus according to Claim 18, wherein said recording head is of the full line type.
Claim 33
Dependent Claim
63 words
An ink jet recording apparatus characterized by the provision of: a recording head having an opening plate member having openings through which ink passes and positioning portions, and discharge energy generating elements generating energy available for discharging the ink through said openings; and opening positioning means provided corresponding to said positioning portions for effecting the positioning of said openings in said recording apparatus.
Claim 34
Dependent Claim
63 words
An ink jet recording apparatus characterized by the provision of: a recording head having an opening plate member having openings through which ink passes and positioning portions, and discharge energy generating elements generating energy available for discharging the ink through said openings; and opening positioning means provided corresponding to said positioning portions for effecting the positioning of said openings in said recording apparatus.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.