JPS60127930U

JPS60127930U - Printing unit drive circuit

Info

Publication number: JPS60127930U
Application number: JP1550684U
Authority: JP
Inventors: 福井　泉; 乾　治; 栄一佐藤
Original assignee: 日本電気株式会社
Priority date: 1984-02-07
Filing date: 1984-02-07
Publication date: 1985-08-28

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は駆動対象である印字ユニットの構造側を示す側
断面図、第２図ａおよびｂはそれぞれ従来の印字ユニッ
ト駆動回路を示すブロック図およびタイムチャート、第
３図ａおよびｂはそれぞれ本考案の一実施例を示すブロ
ック図およびタイムチャートである。１・・・永久磁石、２，３・・・磁極、４・・・アーマ
チュア、５・・・ワイヤ、６・・・コーイル、７・・・
スプリング、８．９・・・スイ゛ンチ、１０・・・イン
′ハータ、Ｌ・・・イン□　　ダクタンス、Ｒｅ、Ｒ１
・・・抵抗、Ｃ・・・コンデンサ。Fig. 1 is a side sectional view showing the structure of the printing unit to be driven, Figs. 2a and b are block diagrams and time charts showing a conventional printing unit drive circuit, respectively, and Figs. 3a and b are the main parts, respectively. 1 is a block diagram and a time chart showing an embodiment of the invention. 1... Permanent magnet, 2, 3... Magnetic pole, 4... Armature, 5... Wire, 6... Coil, 7...
Spring, 8.9... Switch, 10... In' heart, L... In□ Ductance, Re, R1
...Resistance, C...Capacitor.

Claims

[Scope of utility model registration request]

Concerned about the driving and reciprocal movement of the printing operation of the printing unit: A capacitor whose one end is connected in series to a coil wound around a magnetic pole for controlling the printing operation, and a driving voltage applied to the coil through the capacitor during the driving. A printing unit drive circuit comprising: a first switch circuit that guides and applies voltage; and a second switch circuit that forms a closed circuit including the capacitor during the backward movement and discharges the charge charged in the capacitor.