JPH0363170U

JPH0363170U -

Info

Publication number: JPH0363170U
Application number: JP12528589U
Authority: JP
Priority date: 1989-10-26
Filing date: 1989-10-26
Publication date: 1991-06-20

Description

[Brief explanation of the drawing]

第１図はクレーム対応図、第２図から第６図ま
では本考案を具体化した一実施例であるレーザプ
リンタ装置を示すもので、第２図は正面断面図、
第３図は定着器の側面図、第４図は熱源としての
ヒータ及び報知手段としての発光ダイオードの駆
動制御を示すブロツク図、第５図はその駆動制御
を説明する時間と温度の関係を示すグラフ、第６
図はその駆動制御を示すフローチヤートである。図中、９０は用紙、１０１は駆動側の定着ロー
ラ、１０２は従動側の定着ローラ、１０３は温度
検出器、１０５はヒータ、１３０はヒータ駆動回
路、１３４は中央処理装置、１３６は発光ダイオ
ード、１４２は発光ダイオード駆動回路、１４４
はタイマ回路である。 Fig. 1 is a diagram corresponding to claims, Figs. 2 to 6 show a laser printer device which is an embodiment of the present invention, and Fig. 2 is a front sectional view;
Fig. 3 is a side view of the fixing unit, Fig. 4 is a block diagram showing drive control of a heater as a heat source and a light emitting diode as an alarm means, and Fig. 5 shows a relationship between time and temperature to explain the drive control. graph, 6th
The figure is a flowchart showing the drive control. In the figure, 90 is paper, 101 is a fixing roller on the drive side, 102 is a fixing roller on the driven side, 103 is a temperature detector, 105 is a heater, 130 is a heater drive circuit, 134 is a central processing unit, 136 is a light emitting diode, 142 is a light emitting diode drive circuit, 144
is a timer circuit.

Claims

[Claims for Utility Model Registration] A heat fixing device that applies heat emitted from a heat source to a print medium onto which an image has been transferred to fix the image onto the print medium, comprising: a detection means for detecting temperature; a driving means for starting driving the heat source to increase the temperature of the heat source when the temperature detected by the detection means is below a predetermined temperature; Notifying means for notifying that the heat fixing device has reached a temperature at which it can perform fixing operation when the temperature reaches a predetermined temperature; and a timer means for starting counting when the driving means starts driving. , a reset means for resetting the count value of the timer means when the temperature detected by the detection means reaches a predetermined temperature; and a reset means for resetting the count value of the timer means, and a ready notification performed by the notification means regardless of the temperature detected by the detection means. a continuation means that continues without any delay; and when the count value of the timer means reaches a predetermined value,
A heat fixing device comprising: a canceling means for canceling the ready notification.