JPS5848449U - Thermal printing head protection circuit in thermal recording equipment - Google Patents
Thermal printing head protection circuit in thermal recording equipmentInfo
- Publication number
- JPS5848449U JPS5848449U JP14494281U JP14494281U JPS5848449U JP S5848449 U JPS5848449 U JP S5848449U JP 14494281 U JP14494281 U JP 14494281U JP 14494281 U JP14494281 U JP 14494281U JP S5848449 U JPS5848449 U JP S5848449U
- Authority
- JP
- Japan
- Prior art keywords
- printing head
- thermal
- thermal printing
- protection circuit
- head protection
- 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.)
- Granted
Links
Landscapes
- Electronic Switches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の感熱記録装置の構成図、第２図は従来の
各部電圧波形図、第３図は本考案による実施例の感熱記
録装置の構成図、第４図は実施例の各部電圧波形図であ
る。第３図において、２は熱印刷ヘッド駆動回路、３は
制御回路、５は熱印刷ヘッド駆動回路用電源、６は制御
回路用電源、７はリレー、８は抵抗である。Fig. 1 is a block diagram of a conventional thermosensitive recording device, Fig. 2 is a diagram of voltage waveforms at various parts of the conventional device, Fig. 3 is a block diagram of a thermosensitive recording device according to an embodiment of the present invention, and Fig. 4 is a diagram showing voltages at various parts in an embodiment. FIG. In FIG. 3, 2 is a thermal printing head driving circuit, 3 is a control circuit, 5 is a power source for the thermal printing head driving circuit, 6 is a power source for the control circuit, 7 is a relay, and 8 is a resistor.
Claims (1)
ッド駆動回路を制御する制御回路と、熱印刷ヘッド駆動
回路用電源と、制御回路用電源とを含む感熱記録装置に
おいて、上記制御回路用電源投入により作動するリレー
をもうけ、該リレーの接点を上記熱印刷ヘッド駆動回路
用電源と上記熱印刷ヘッド駆動回路との間に挿入したこ
とを特徴とする感熱記録装置における熱印刷ヘッド保護
回路。In a thermal recording device including a thermal printing head, a thermal printing head driving circuit, a control circuit for controlling the thermal printing head driving circuit, a power source for the thermal printing head driving circuit, and a power source for the control circuit, 1. A thermal printing head protection circuit for a thermal recording device, comprising a relay that is activated when power is turned on, and a contact point of the relay is inserted between the power source for the thermal printing head driving circuit and the thermal printing head driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14494281U JPS5848449U (en) | 1981-09-29 | 1981-09-29 | Thermal printing head protection circuit in thermal recording equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14494281U JPS5848449U (en) | 1981-09-29 | 1981-09-29 | Thermal printing head protection circuit in thermal recording equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5848449U true JPS5848449U (en) | 1983-04-01 |
| JPS6210134Y2 JPS6210134Y2 (en) | 1987-03-09 |
Family
ID=29937890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14494281U Granted JPS5848449U (en) | 1981-09-29 | 1981-09-29 | Thermal printing head protection circuit in thermal recording equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848449U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040263A (en) * | 1983-08-15 | 1985-03-02 | Seiko Instr & Electronics Ltd | Integrated circuit for driving double power source printing element |
| JPS6377757A (en) * | 1986-09-19 | 1988-04-07 | Canon Inc | Protective apparatus for recording head |
-
1981
- 1981-09-29 JP JP14494281U patent/JPS5848449U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040263A (en) * | 1983-08-15 | 1985-03-02 | Seiko Instr & Electronics Ltd | Integrated circuit for driving double power source printing element |
| JPS6377757A (en) * | 1986-09-19 | 1988-04-07 | Canon Inc | Protective apparatus for recording head |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6210134Y2 (en) | 1987-03-09 |
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