JPH01131539U - - Google Patents
Info
- Publication number
- JPH01131539U JPH01131539U JP2871988U JP2871988U JPH01131539U JP H01131539 U JPH01131539 U JP H01131539U JP 2871988 U JP2871988 U JP 2871988U JP 2871988 U JP2871988 U JP 2871988U JP H01131539 U JPH01131539 U JP H01131539U
- Authority
- JP
- Japan
- Prior art keywords
- heating resistor
- protective film
- thermal head
- insulating substrate
- utility
- 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
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
Landscapes
- Electronic Switches (AREA)
Description
第１図はこの発明によるサーマルヘツドを示す
断面図、第２図は第１図の平面図、第３図は従来
のサーマルヘツドを示す断面図、第４図は第３図
の平面図である。
図において、１は絶縁基板、２はグレーズ層、
３はリード、４は発熱抵抗体、６は保護膜、７は
保護膜に設けた空孔を示す。なお、図中、同一符
号は同一、または相当部分を示す。
FIG. 1 is a sectional view showing a thermal head according to the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a sectional view of a conventional thermal head, and FIG. 4 is a plan view of FIG. 3. . In the figure, 1 is an insulating substrate, 2 is a glaze layer,
3 is a lead, 4 is a heating resistor, 6 is a protective film, and 7 is a hole provided in the protective film. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
ドの発熱抵抗体上に設置される保護膜の発熱抵抗
体近傍に空孔を設けたことを特徴とするサーマル
ヘツド。 1. A thermal head comprising a heating resistor provided on an insulating substrate, wherein a hole is provided near the heating resistor in a protective film disposed on the heating resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2871988U JPH01131539U (en) | 1988-03-03 | 1988-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2871988U JPH01131539U (en) | 1988-03-03 | 1988-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01131539U true JPH01131539U (en) | 1989-09-06 |
Family
ID=31252305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2871988U Pending JPH01131539U (en) | 1988-03-03 | 1988-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01131539U (en) |
-
1988
- 1988-03-03 JP JP2871988U patent/JPH01131539U/ja active Pending