JPS616878U

JPS616878U - Flash fixing device

Info

Publication number: JPS616878U
Application number: JP9080884U
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歯の電気回路図、第３図ｂはダ
ンピングファクターが小さい場合の放電パルス波形図、
第３図Ｃは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の過電圧回路の詳細図、第６
図，は第３図ａのトリガ回路の詳細図、第７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・・・赤外線ラジプ
、５７・・・コンデンサ、６１・・・トリガ電源回路、
６７・・・転流回路、１１０・・・発光光量検知回路。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 the second tooth, and FIG. 3b is a discharge pulse waveform diagram when the damping factor is small.
Figure 3C 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; 6
Figure 7 is a detailed diagram of the trigger circuit in Figure 3a, Figure 7 is a detailed diagram of the phase control circuit in Figure 3a, and Figure 8 is a sequence circuit that defines the timing of generation of various input signals in Figure 3a. figure,
FIG. 9 is a time chart of the various signals shown in FIG. 21...Flash lamp, 23...Infrared radiation lamp, 57...Capacitor, 61...Trigger power supply circuit,
67... Commutation circuit, 110... Luminous light amount detection 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 discharging thyristor, a commutation thyristor that changes the discharging thyristor from a conductive state to a non-conducting state, and the light from the Fleisch lamp that is photoelectrically converted and integrated in order to ignite the commutating thyristor, and its value is A flash fixing device comprising: a light emission amount detection circuit that generates a commutation trigger when the amount of light exceeds a predetermined value.