JPS616879U

JPS616879U - Flash fixing device

Info

Publication number: JPS616879U
Application number: JP9080984U
Authority: JP
Inventors: 邦夫工藤; 豊彦熊田
Original assignee: ウシオ電機株式会社
Priority date: 1984-06-20
Filing date: 1984-06-20
Publication date: 1986-01-16

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図は本考案の適用例を示す複写装置の概要図、第２
図は本考案の一実施例に係るフラッシュ定着装置の概略
機構図、第３図ａは第２図の電気回路図、第３図ｂはダ
ンピングファクターが小さい場合の訪電パルス波形図、
第３図ｃｉまダンピングファクターが大きい場合の放電
パルス波形図、第４図は第３図ａの充電電圧制御回路の
詳細図、第５図は第３図ａの過電圧回路あ詳細図、第６
図は第３図ａのトリガ回路の詳細図、第ブ図は第３図ａ
の位相制御回路の詳細図、第８図は第３図ａの各種入力
信号の発生タイミングを規定するシーケンス回路図、第
９図は第８図の各種信号のタイムチャートである。２１・・・フラッシュランプ、２３・・・赤外線ランプ
、５７・・・コンデンサ、６１・・・トリガ回路、６７
・・・転流回路、８３・・・タイマ回路。Figure 1 is a schematic diagram of a copying machine showing an example of application of the present invention;
The figure is a schematic mechanical diagram of a flash fixing device according to an embodiment of the present invention, FIG. 3a is an electric circuit diagram of FIG. 2, and FIG.
Figure 3 is a discharge pulse waveform diagram when the damping factor is large; Figure 4 is a detailed diagram of the charging voltage control circuit in Figure 3a; Figure 5 is a detailed diagram of the overvoltage circuit in Figure 3a;
The figure is a detailed diagram of the trigger circuit in Figure 3 a, and the figure B is a detailed diagram of the trigger circuit in Figure 3 a.
8 is a sequence circuit diagram defining the generation timing of the various input signals shown in FIG. 3a, and FIG. 9 is a time chart of the various signals shown in FIG. 8. 21... Flash lamp, 23... Infrared lamp, 57... Capacitor, 61... Trigger circuit, 67
... Commutation circuit, 83... Timer circuit.

Claims

[Scope of utility model registration request]

An infrared lamp that preheats the transfer paper, a flash lamp that fixes the toner image on the preheated transfer paper, a capacitor that supplies luminous energy to the flash lamp, and is connected in series with the flash lamp to form a capacitor discharge circuit. A discharge thyristor, a commutation thyristor that changes the discharge thyristor from a conductive state to a non-conductive state, and a timer circuit that generates a commutation trigger after a predetermined time has elapsed from the input of a trigger pulse in order to ignite the commutation thyristor. A flash fixing device comprising: