JPS56113479A - Thermal head - Google Patents
Thermal headInfo
- Publication number
- JPS56113479A JPS56113479A JP1730580A JP1730580A JPS56113479A JP S56113479 A JPS56113479 A JP S56113479A JP 1730580 A JP1730580 A JP 1730580A JP 1730580 A JP1730580 A JP 1730580A JP S56113479 A JPS56113479 A JP S56113479A
- Authority
- JP
- Japan
- Prior art keywords
- screen printing
- grooves
- resistance layer
- thermal resistance
- electrode patterns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electronic Switches (AREA)
- Fax Reproducing Arrangements (AREA)
Abstract
PURPOSE: To improve the accuracy of the screen printing of a heating resistor and decrease the dispersion of resistance value by a method wherein electrode patterns are buried in grooves made up to a substrate, etc., and heating resistor patterns are built up on the patterns, in a thick-film type thermal head.
CONSTITUTION: A thermal resistance layer 2 is formed on a substrate 1 consisting of an insulating material of alumina, etc., and rectilinear grooves 3 are made up on an upper surface of the thermal resistance layer 2. Electrode patterns 4 for supplying power are buried in the grooves 3 at intervals, and the electrode patterns 4 and the thermal resistance layer 2 are made the same plane level. Heating resistors 5 consisting of ruthenium oxide, etc. are built up on such smooth planes by means of screen printing in shapes that sections among electrodes are bridged. Screen printing can be done accurately because a screen printing surface is smooth. The grooves 3 for burying the electrode patterns may directly be formed on the substrate 1 without using the thermal resistance layer 2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1730580A JPS56113479A (en) | 1980-02-15 | 1980-02-15 | Thermal head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1730580A JPS56113479A (en) | 1980-02-15 | 1980-02-15 | Thermal head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56113479A true JPS56113479A (en) | 1981-09-07 |
Family
ID=11940291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1730580A Pending JPS56113479A (en) | 1980-02-15 | 1980-02-15 | Thermal head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56113479A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59167276A (en) * | 1983-03-14 | 1984-09-20 | Mitani Denshi Kogyo Kk | Thermal head |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50158374A (en) * | 1974-06-10 | 1975-12-22 |
-
1980
- 1980-02-15 JP JP1730580A patent/JPS56113479A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50158374A (en) * | 1974-06-10 | 1975-12-22 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59167276A (en) * | 1983-03-14 | 1984-09-20 | Mitani Denshi Kogyo Kk | Thermal head |
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