JPS5724273A - Thermal head - Google Patents
Thermal headInfo
- Publication number
- JPS5724273A JPS5724273A JP9856080A JP9856080A JPS5724273A JP S5724273 A JPS5724273 A JP S5724273A JP 9856080 A JP9856080 A JP 9856080A JP 9856080 A JP9856080 A JP 9856080A JP S5724273 A JPS5724273 A JP S5724273A
- Authority
- JP
- Japan
- Prior art keywords
- common electrode
- abrasion
- individual electrodes
- conductor
- printing
- 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
- 238000005299 abrasion Methods 0.000 abstract 3
- 239000004020 conductor Substances 0.000 abstract 3
- 239000010408 film Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE: To reduce the irregularity of printing arising from a voltage drop at a common electrode of a parallel drive type thermal head by making the common electrode thickner than individual electrodes, and to prevent the common electrode from abrasion by coating it with a protective film.
CONSTITUTION: A belt-shaped conductor 18 is provided on an end part of a ceramic substrate 10, a belt-shaped thin film conductor 19 formed as one body with the individual electrodes 8 is provided on the conductor 18, and the common electrode 6 is made to be thicker than the individual electrodes 8, 9. As a result, even when a pluraity of heating resistors 4 are driven simultaneously, the voltage drop at the common electrode is reduced. Therefore, a constantly fixed voltage is applied to the resistors 4, resulting in less irregularity of printing. Since an abrasion-resisting film 20 which is provided over the heating resistors 4 and the individual electrodes 8, 9 for protecting them from abrasion due to contact with a heat-sensitive paper is extended 21 over the common electrode 6, the abrasion of the common electrode 6 and a rise in electrical resistance can be prevented.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9856080A JPS5724273A (en) | 1980-07-18 | 1980-07-18 | Thermal head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9856080A JPS5724273A (en) | 1980-07-18 | 1980-07-18 | Thermal head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5724273A true JPS5724273A (en) | 1982-02-08 |
Family
ID=14223060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9856080A Pending JPS5724273A (en) | 1980-07-18 | 1980-07-18 | Thermal head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5724273A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57123072A (en) * | 1981-01-26 | 1982-07-31 | Oki Electric Ind Co Ltd | Thermal head |
JPS58220769A (en) * | 1982-06-17 | 1983-12-22 | Tokyo Electric Co Ltd | Thermal head |
JPS60116474A (en) * | 1983-11-29 | 1985-06-22 | Kyocera Corp | Heat printer |
JPS61107542U (en) * | 1984-12-19 | 1986-07-08 | ||
JPS61229571A (en) * | 1985-04-05 | 1986-10-13 | Hitachi Ltd | Electrode construction for thermal recording head |
JPS61293872A (en) * | 1985-06-21 | 1986-12-24 | Konishiroku Photo Ind Co Ltd | Thermal head |
US5241326A (en) * | 1991-09-13 | 1993-08-31 | Rohm Co., Ltd. | Line-type thermal printing head |
CN109572229A (en) * | 2017-09-29 | 2019-04-05 | 京瓷株式会社 | Thermal head and thermal printer |
-
1980
- 1980-07-18 JP JP9856080A patent/JPS5724273A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57123072A (en) * | 1981-01-26 | 1982-07-31 | Oki Electric Ind Co Ltd | Thermal head |
JPS6160780B2 (en) * | 1981-01-26 | 1986-12-22 | Oki Electric Ind Co Ltd | |
JPS58220769A (en) * | 1982-06-17 | 1983-12-22 | Tokyo Electric Co Ltd | Thermal head |
JPS60116474A (en) * | 1983-11-29 | 1985-06-22 | Kyocera Corp | Heat printer |
JPH0579510B2 (en) * | 1983-11-29 | 1993-11-02 | Kyocera Corp | |
JPS61107542U (en) * | 1984-12-19 | 1986-07-08 | ||
JPS61229571A (en) * | 1985-04-05 | 1986-10-13 | Hitachi Ltd | Electrode construction for thermal recording head |
JPS61293872A (en) * | 1985-06-21 | 1986-12-24 | Konishiroku Photo Ind Co Ltd | Thermal head |
US5241326A (en) * | 1991-09-13 | 1993-08-31 | Rohm Co., Ltd. | Line-type thermal printing head |
CN109572229A (en) * | 2017-09-29 | 2019-04-05 | 京瓷株式会社 | Thermal head and thermal printer |
US10688806B2 (en) | 2017-09-29 | 2020-06-23 | Kyocera Corporation | Thermal head and thermal printer |
CN109572229B (en) * | 2017-09-29 | 2020-09-25 | 京瓷株式会社 | Thermal head and thermal printer |
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