JPH01112941U - - Google Patents
Info
- Publication number
- JPH01112941U JPH01112941U JP704488U JP704488U JPH01112941U JP H01112941 U JPH01112941 U JP H01112941U JP 704488 U JP704488 U JP 704488U JP 704488 U JP704488 U JP 704488U JP H01112941 U JPH01112941 U JP H01112941U
- Authority
- JP
- Japan
- Prior art keywords
- printing wire
- printing
- cutting
- drive device
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Dot-Matrix Printers And Others (AREA)
Description
第１図は本考案に係わる印字ワイヤ駆動装置を
構成する印字ワイヤ駆動回路の一実施例を示す回
路図、第２図はその動作を説明するための波形図
、第３図は一般的な印字ワイヤ駆動装置の機構部
を示す構成図、第４図は第３図の―線断面図
、第５図は従来の印字ワイヤ駆動回路を示す回路
図である。
Ｔ１，Ｔ２……入力端子、Ｔ３……電源端子、
Ｔ４……共通端子、Ｑ１，Ｑ２……電源供給トラ
ンジスタ、Ｑ３，Ｑ４……駆動トランジスタ、Ｄ
１〜Ｄ４……ダイオード、３……電源コイル。
Fig. 1 is a circuit diagram showing an embodiment of the printing wire driving circuit constituting the printing wire driving device according to the present invention, Fig. 2 is a waveform diagram for explaining its operation, and Fig. 3 is a general printing wire driving circuit. FIG. 4 is a sectional view taken along the line -- in FIG. 3, and FIG. 5 is a circuit diagram showing a conventional printing wire drive circuit. T1, T2...Input terminal, T3...Power terminal,
T4... Common terminal, Q1, Q2... Power supply transistor, Q3, Q4... Drive transistor, D
1 to D4...Diode, 3...Power coil.
Claims (1)
しや断するしや断手段を備え、印字ワイヤの印字
後残留振動を防止することを特徴とする印字ワイ
ヤ駆動装置。 A printing wire drive device comprising a cutting means for cutting off the induced current in one direction of an electromagnetic coil of a printing wire, and preventing residual vibration of the printing wire after printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP704488U JPH01112941U (en) | 1988-01-25 | 1988-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP704488U JPH01112941U (en) | 1988-01-25 | 1988-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01112941U true JPH01112941U (en) | 1989-07-28 |
Family
ID=31211726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP704488U Pending JPH01112941U (en) | 1988-01-25 | 1988-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01112941U (en) |
-
1988
- 1988-01-25 JP JP704488U patent/JPH01112941U/ja active Pending
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