Claims
- 1. A process for producing a substrate for an ink jet recording head comprising a plurality of discharge openings for discharging a liquid and a plurality of liquid passageways each communicating with one of the plurality of discharge openings, the process comprising the steps of:
- forming in a predetermined pattern on a base plate a plurality of heat generating resistance members arranged generally along a line and a plurality of pairs of electrodes each connected to one of the plurality of heat generating resistance members, wherein each said pair of electrodes and each corresponding heat generating resistance member integrally form a U-shaped wiring member with a bent portion arranged with all of said bent portions facing in the same direction; and
- cutting the base plate along a line substantially parallel to said line along which the plurality of heat generating resistance members are arranged at a location remote by a predetermined distance from each of the plurality of heat generating resistance members to form the substrate, the location for cutting determining a relative location between the plurality of heat generating resistance members and the plurality of discharge openings of the ink jet recording head to be produced using the substrate.
- 2. A process for producing an ink jet recording head comprising a plurality of discharge openings for discharging a liquid and a plurality of liquid passageways each communicating with one of the plurality of discharge openings, the process comprising the steps of:
- forming in a predetermined pattern on a base plate a plurality of heat generating resistance members arranged generally along a line and a plurality of pairs of electrodes each connected to one of the plurality of heat generating resistance members, wherein each said pair of electrodes and each corresponding heat generating resistance member integrally form a U-shaped wiring member with a bent portion arranged with all of said bent portions facing in the same direction;
- cutting the base plate along a line substantially parallel to said line along which the plurality of heat generating resistance members are arranged at a location remote by a predetermined distance from each of the plurality of heat generating resistance members to form a substrate for the ink jet recording head, the location for cutting determining a relative location between the plurality of heat generating resistance members and the plurality of discharge openings of the ink jet recording head to be produced using the substrate; and
- attaching a liquid passageway forming member onto the substrate, whereby a plurality of liquid passageways are formed each corresponding to one of the U-shaped wiring members.
- 3. The process according to claim 2, wherein the end portions of the plurality of liquid passageways are formed corresponding to the end portion of the base plate.
- 4. An ink jet recording head comprising a plurality of discharge openings for discharging a liquid and a plurality of liquid passageways each communicating with one of the plurality of discharge openings, the ink jet recording head being produced by a production process comprising the steps of:
- forming in a predetermined pattern on a base plate a plurality of heat generating resistance members arranged generally along a line and a plurality of pairs of electrodes each connected to one of the plurality of heat generating resistance members, wherein each said pair of electrodes and each corresponding heat generating resistance member integrally form a U-shaped wiring member with a bent portion arranged with all of said bent portions facing in the same direction;
- cutting the base plate along a line substantially parallel to said line along which the plurality of heat generating resistance members are arranged at a location remote by a predetermined distance from each of the plurality of heat generating resistance members to form a substrate for the ink jet recording head having a cut end portion, the location for cutting determining a relative location between the plurality of heat generating resistance members and the plurality of discharge openings of the ink jet recording head to be produced using the substrate; and
- attaching a liquid passageway forming member onto the substrate, whereby a plurality of liquid passageways are formed each corresponding to one of the U-shaped wiring members,
- wherein the end portions of the plurality of liquid passageways are formed corresponding to the cut end portion of the substrate.
- 5. An ink jet recording apparatus comprising an ink jet recording head comprising a plurality of discharge openings for discharging a liquid and a plurality of liquid passageways each communicating with one of the plurality of discharge openings, and means for supplying electric power to the ink jet recording head, the ink jet recording head being produced by a production process comprising the steps of:
- forming in a predetermined pattern on a base plate a plurality of heat generating resistance members arranged generally along a line and a plurality of pairs of electrodes each connected to one of the plurality of heat generating resistance members, wherein each said pair of electrodes and each corresponding heat generating resistance member integrally form a U-shaped wiring member with a bent portion arranged with all of said bent portions facing in the same direction;
- cutting the base plate along a line substantially parallel to said line along which the plurality of heat generating resistance members are arranged at a location remote by a predetermined distance from each of the plurality of heat generating resistance members to form a substrate for the ink jet recording head having a cut end portion, the location for cutting determining a relative location between the plurality of heat generating resistance members and the plurality of discharge openings of the ink jet recording head to be produced using the substrate; and
- attaching a liquid passageway forming member onto the substrate, whereby a plurality of liquid passageways are formed each corresponding to one of the U-shaped wiring members,
- wherein the end portions of the plurality of liquid passageways are formed corresponding to the cut end portion of the substrate.
Priority Claims (1)
Number |
Date |
Country |
Kind |
54-39478 |
Apr 1979 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 08/159,709 filed Dec. 1, 1993, now abandoned, which in turn is a continuation of application Ser. No. 07/998,053 filed Dec. 29, 1992, now abandoned, which is a division of application Ser. No. 07/711,418 filed Jun. 5, 1991, now U.S. Pat. No. 5,204,689, which is a continuation of application Ser. No. 07/632,610, filed Dec. 27, 1990, now abandoned, which is a continuation of application Ser. No. 07/403,860, filed Sep. 1, 1989, now abandoned, which is a continuation of application Ser. No. 07/188,071, filed Apr. 28, 1988, now abandoned, which is a continuation of application Ser. No. 07/013,172 filed Feb. 9, 1987, now abandoned, which is a continuation of application Ser. No. 06/846,472 filed Mar. 31, 1986, now abandoned, which is a continuation of application Ser. No. 06/750,985 filed Jul. 1, 1985, now abandoned, which is a continuation of application Ser. No. 06/639,531 filed Aug. 9, 1984, now abandoned, which is a continuation of application Ser. No. 06/543,224 filed Oct. 20, 1983, now abandoned, which is a continuation of application Ser. No. 06/362,579 filed Mar. 29, 1982, now abandoned, which is a continuation of application Ser. No. 06/132,774 filed Mar. 24, 1980, which is now abandoned.
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Foreign Referenced Citations (3)
Number |
Date |
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2115530 |
Oct 1971 |
DEX |
2532037 |
Jan 1976 |
DEX |
2843064 |
Apr 1979 |
DEX |
Non-Patent Literature Citations (1)
Entry |
IEEE Transactions on Industry Applications vol. IA-13, No. 1, Jan./Feb., 1977. |
Divisions (1)
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Date |
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711418 |
Jun 1991 |
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Continuations (12)
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159709 |
Dec 1993 |
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998053 |
Dec 1992 |
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632610 |
Dec 1990 |
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403860 |
Sep 1989 |
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188071 |
Apr 1988 |
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013172 |
Feb 1987 |
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846472 |
Mar 1986 |
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750985 |
Jul 1985 |
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639531 |
Aug 1984 |
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543224 |
Oct 1983 |
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362579 |
Mar 1982 |
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132774 |
Mar 1980 |
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