JPS5624180A - Thermal head - Google Patents
Thermal headInfo
- Publication number
- JPS5624180A JPS5624180A JP9905179A JP9905179A JPS5624180A JP S5624180 A JPS5624180 A JP S5624180A JP 9905179 A JP9905179 A JP 9905179A JP 9905179 A JP9905179 A JP 9905179A JP S5624180 A JPS5624180 A JP S5624180A
- Authority
- JP
- Japan
- Prior art keywords
- adjacent
- layer
- heating
- hardwearing
- thermal head
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/345—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads characterised by the arrangement of resistors or conductors
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE:To simplify a thermal head, to detect temperatures precisely, and to perform uniform thermal recording, by arranging detection electrodes in a portion covered with a hardwearing layer and adjacent to a heating portion, and controlling application of an electric power to a heating resistance according to values detected by the electrodes. CONSTITUTION:A pair of detection electrodes 10, 11 with their opposed ends spaced apart to difine a narrow gap 9 are provided in a portion covered with a hardwearing layer and adjacent to a heating portion A on a glass glaze layer 2 of an alumina base 1. By these detection electrodes 10, 11, a temperature change of the adjacent heating portion A is detected as a resistance change in the SiC hardwearing layer 6, so that application of an electric power to the heating resistance 3 is controlled. The present thermal head can be manufactured in a simple process, and can detect local temperatures adjacent to the heating portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9905179A JPS5624180A (en) | 1979-08-02 | 1979-08-02 | Thermal head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9905179A JPS5624180A (en) | 1979-08-02 | 1979-08-02 | Thermal head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5624180A true JPS5624180A (en) | 1981-03-07 |
Family
ID=14236774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9905179A Pending JPS5624180A (en) | 1979-08-02 | 1979-08-02 | Thermal head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5624180A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59169947U (en) * | 1983-04-27 | 1984-11-14 | ロ−ム株式会社 | thermal printing head |
US4659416A (en) * | 1982-01-07 | 1987-04-21 | Ecupan Ab | Thermal bar code printer for label applicator |
US6222158B1 (en) * | 1992-12-29 | 2001-04-24 | Canon Kabushiki Kaisha | Fixing heater comprising electrically conductive member extending in the longitudinal axis of substrate |
-
1979
- 1979-08-02 JP JP9905179A patent/JPS5624180A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4659416A (en) * | 1982-01-07 | 1987-04-21 | Ecupan Ab | Thermal bar code printer for label applicator |
JPS59169947U (en) * | 1983-04-27 | 1984-11-14 | ロ−ム株式会社 | thermal printing head |
US6222158B1 (en) * | 1992-12-29 | 2001-04-24 | Canon Kabushiki Kaisha | Fixing heater comprising electrically conductive member extending in the longitudinal axis of substrate |
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