JPS5698181A - Thermal head - Google Patents
Thermal headInfo
- Publication number
- JPS5698181A JPS5698181A JP104880A JP104880A JPS5698181A JP S5698181 A JPS5698181 A JP S5698181A JP 104880 A JP104880 A JP 104880A JP 104880 A JP104880 A JP 104880A JP S5698181 A JPS5698181 A JP S5698181A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- thermistor
- resistor
- temperature
- heat generating
- 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
- B41J2/335—Structure of thermal heads
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE:To shunt a part of currents flowing through a heat generating resistor to a thermistor, to improve thermal stability and to obtain excellent printing recording quality by mounting a thermistor layer apart from a wear resisting layer so as to contact with a heat generating resistor layer. CONSTITUTION:A thermistor layer 5 is mounted apart from a wear resisting layer 4 so as to contact with a heat generating resistor layer 2 disposed onto a heat resisting insulator substrate 1. The parallel resistance with the resistor layer 2 of a thermistor decreases with a temperature rise of a resistor, and a part of currents flowing through the resistor is shunted to the thermistor. Thus, heat expands to the thermistor layer 5 not being divided every dot, and temperature distribution widens. Consequently, a peak temperature of a heating element drops, temperature distribution widens, excellent printing quality is obtained at a low temperature, and thermal stability is gained owing to a low peak temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP104880A JPS5698181A (en) | 1980-01-08 | 1980-01-08 | Thermal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP104880A JPS5698181A (en) | 1980-01-08 | 1980-01-08 | Thermal head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5698181A true JPS5698181A (en) | 1981-08-07 |
Family
ID=11490659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP104880A Pending JPS5698181A (en) | 1980-01-08 | 1980-01-08 | Thermal head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5698181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59207270A (en) * | 1983-05-10 | 1984-11-24 | Sharp Corp | Thermal head |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127385A (en) * | 1974-08-31 | 1976-03-06 | Hokushin Electric Works | SHIITOJOTAINOKETSUTENKENSASOCHI |
| JPS53116164A (en) * | 1977-03-18 | 1978-10-11 | Nippon Toki Kk | Thermosensitive head |
-
1980
- 1980-01-08 JP JP104880A patent/JPS5698181A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127385A (en) * | 1974-08-31 | 1976-03-06 | Hokushin Electric Works | SHIITOJOTAINOKETSUTENKENSASOCHI |
| JPS53116164A (en) * | 1977-03-18 | 1978-10-11 | Nippon Toki Kk | Thermosensitive head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59207270A (en) * | 1983-05-10 | 1984-11-24 | Sharp Corp | Thermal head |
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