Claims
- 1. A printhead for a printer, comprising:
- an ink source for supplying ink;
- an orifice;
- a channel for conveying ink from the ink source to the orifice;
- a doped resistive layer of tantalum aluminum oxygen TaA10.sub.x for generating heat to expel ink from the channel through the orifice, wherein the dopant of the layer is within a range of about 0.1% to 10% of the weight percent of the layer; and
- a conductor for supplying a signal to control expulsion of ink by the resistive layer.
- 2. The printhead of claim 1 wherein the resistive layer is constructed to contact ink within the channel.
- 3. The printhead of claim 1 wherein the resistive layer is at least 5000 .ANG. thick.
- 4. A printhead for a printer, comprising:
- an ink source for supplying ink;
- an orifice;
- a channel for conveying ink from the ink source to the orifice;
- a resistive layer for generating heat to expel ink from the channel through the orifice, the resistive layer consisting essentially of tantalum aluminum oxygen wherein the oxygen portion of the layer is within a range of about 0.1% to 10% of the weight percent of the layer; and
- a conductor for supplying a signal to control expulsion of ink by the resistive layer.
CROSS REFERENCE TO RELATED APPLICATION(S)
This is a file wrapper continuation of application Ser. No. 07/942,566 filed on Sep. 9, 1992, now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
59-135169 |
Aug 1984 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
942566 |
Sep 1992 |
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