JPS6183933U - - Google Patents
Info
- Publication number
- JPS6183933U JPS6183933U JP16803784U JP16803784U JPS6183933U JP S6183933 U JPS6183933 U JP S6183933U JP 16803784 U JP16803784 U JP 16803784U JP 16803784 U JP16803784 U JP 16803784U JP S6183933 U JPS6183933 U JP S6183933U
- Authority
- JP
- Japan
- Prior art keywords
- potential
- junction element
- anode side
- common line
- heating resistor
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Electronic Switches (AREA)
Description
第１図は、本考案の一実施例のブロツク図、第
２図は第１図の主要部の信号のタイムチヤート、
第３図は従来のサーマルヘツド駆動装置の回路図
である。
１…発熱抵抗体、２…コモンライン、３…NAND
ゲート、４…第１のシフトレジスタ、５…ダイオ
ード、７…比較器、９…第２のシフトレジスタ、
１０…第３のシフトレジスタ。
Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a time chart of the main parts of the signals in Fig. 1,
FIG. 3 is a circuit diagram of a conventional thermal head driving device. 1...Heating resistor, 2...Common line, 3...NAND
gate, 4...first shift register, 5...diode, 7...comparator, 9...second shift register,
10...Third shift register.
Claims (1)
ラインに並列に接続された発熱抵抗体、該発熱抵
抗体の各々にアノード側が接続されたＰ・Ｎ接合
素子、該Ｐ・Ｎ接合素子のカソード側に接続され
た印字データ供給手段、該Ｐ・Ｎ接合素子のアノ
ード側の電位を基準電圧と比較する手段、該アノ
ード側の電位が前記基準電位より低くなつた時、
前記発熱抵抗体に追加のエネルギを供給すること
を特徴とする手段を具備したことを特徴とするサ
ーマルヘツド駆動装置。 A common line to which a DC power supply is connected, a heating resistor connected in parallel to the common line, a P/N junction element whose anode side is connected to each of the heating resistors, and a cathode side of the P/N junction element. connected print data supply means, means for comparing the potential on the anode side of the P/N junction element with a reference voltage, when the potential on the anode side becomes lower than the reference potential;
A thermal head driving device comprising means for supplying additional energy to the heating resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16803784U JPS6183933U (en) | 1984-11-07 | 1984-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16803784U JPS6183933U (en) | 1984-11-07 | 1984-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6183933U true JPS6183933U (en) | 1986-06-03 |
Family
ID=30725820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16803784U Pending JPS6183933U (en) | 1984-11-07 | 1984-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6183933U (en) |
-
1984
- 1984-11-07 JP JP16803784U patent/JPS6183933U/ja active Pending
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