JPH0415538U - - Google Patents
Info
- Publication number
- JPH0415538U JPH0415538U JP5665690U JP5665690U JPH0415538U JP H0415538 U JPH0415538 U JP H0415538U JP 5665690 U JP5665690 U JP 5665690U JP 5665690 U JP5665690 U JP 5665690U JP H0415538 U JPH0415538 U JP H0415538U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- comparator
- head
- signal
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案の実施例を示すブロツク回路図
、第２図は本実施例の各信号を説明するための模
式図、第３図は従来例を示すブロツク図である。
１……主制御部、３……Ｉ／Ｏポート、４……
入力手段（キーボード）、５ａ〜５ｊ……インバ
ータ、６ａ〜６ｊ……抵抗、７……サーミスタ、
８……コンパレータ、９１〜９ｎ……サーマルヘ
ツド、１０……駆動制御部。
FIG. 1 is a block circuit diagram showing an embodiment of the present invention, FIG. 2 is a schematic diagram for explaining each signal of this embodiment, and FIG. 3 is a block diagram showing a conventional example. 1... Main control unit, 3... I/O port, 4...
Input means (keyboard), 5a to 5j...Inverter, 6a to 6j...Resistor, 7...Thermistor,
8... Comparator, 91-9n... Thermal head, 10... Drive control section.
Claims (1)
スキヤンするためのキースキヤン信号を出力する
手段、該手段から出力された上記信号に基づいて
基準温度信号を発生する手段、印字手段としての
サーマルヘツド、該ヘツド周囲の温度を検出する
非線形温度検出手段、該検出手段及び上記基準温
度信号発生手段からの出力を比較するコンパレー
タ、該コンパレータからの出力に基づいて上記ヘ
ツドに対する通電を制御する手段を備えたことを
特徴とするサーマルヘツド駆動装置。 A matrix type keyboard, means for outputting a key scan signal for scanning the keyboard, means for generating a reference temperature signal based on the signal output from the means, a thermal head as a printing means, and temperature around the head. The present invention is characterized by comprising: nonlinear temperature detection means for detecting the temperature, a comparator for comparing outputs from the detection means and the reference temperature signal generation means, and means for controlling energization to the head based on the output from the comparator. Thermal head drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990056656U JPH081094Y2 (en) | 1990-05-30 | 1990-05-30 | Thermal head drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990056656U JPH081094Y2 (en) | 1990-05-30 | 1990-05-30 | Thermal head drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0415538U true JPH0415538U (en) | 1992-02-07 |
| JPH081094Y2 JPH081094Y2 (en) | 1996-01-17 |
Family
ID=31580673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990056656U Expired - Lifetime JPH081094Y2 (en) | 1990-05-30 | 1990-05-30 | Thermal head drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH081094Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62255165A (en) * | 1986-04-28 | 1987-11-06 | Konika Corp | Thermal recorder capable of operating recording pulses |
| JPS63170723A (en) * | 1987-01-09 | 1988-07-14 | Toshiba Corp | Keyboard control system |
| JPS63308626A (en) * | 1987-06-10 | 1988-12-16 | Brother Ind Ltd | Matrix switch input detector |
-
1990
- 1990-05-30 JP JP1990056656U patent/JPH081094Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62255165A (en) * | 1986-04-28 | 1987-11-06 | Konika Corp | Thermal recorder capable of operating recording pulses |
| JPS63170723A (en) * | 1987-01-09 | 1988-07-14 | Toshiba Corp | Keyboard control system |
| JPS63308626A (en) * | 1987-06-10 | 1988-12-16 | Brother Ind Ltd | Matrix switch input detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH081094Y2 (en) | 1996-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |