JPS5874267U - Disconnection detection device for thermistor for fixing heater temperature adjustment - Google Patents

Disconnection detection device for thermistor for fixing heater temperature adjustment

Info

Publication number
JPS5874267U
JPS5874267U JP16849781U JP16849781U JPS5874267U JP S5874267 U JPS5874267 U JP S5874267U JP 16849781 U JP16849781 U JP 16849781U JP 16849781 U JP16849781 U JP 16849781U JP S5874267 U JPS5874267 U JP S5874267U
Authority
JP
Japan
Prior art keywords
thermistor
temperature
fixing heater
temperature adjustment
detection device
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
Application number
JP16849781U
Other languages
Japanese (ja)
Inventor
岩崎　信一
森峰　寿一
Original Assignee
キヤノン株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by キヤノン株式会社 filed Critical キヤノン株式会社
Priority to JP16849781U priority Critical patent/JPS5874267U/en
Publication of JPS5874267U publication Critical patent/JPS5874267U/en
Pending legal-status Critical Current

Links

Landscapes

  • Fixing For Electrophotography (AREA)
  • Control Of Temperature (AREA)

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案を適用できる熱定着器の一例を示す概略
図、第２図は本考案の一実施例の回路例である。 １・・・ヒートロール、２・・・テフロンのコート、３
・・・温度検知素子、４・・・ヒーター、５・・・転写
材、６・・・未定着の粉像、７・・・オフセット防止剤
を含浸させた不織布、８，９・・・ローラー、１０・・
・圧着ローラー、１１．１２・・・分離爪、Ｈｌ・・・
定着用ヒーター、ＴＨｌ・・・定着用ヒータ温度調節用
サーミスタ１、ＴＨ２・・・室温検知サーミスタ、Ｑｌ
・・・オペレーショナルアンプ、Ｑ２・・・マイクロコ
ンピュータ、Ｒ１−Ｒ６・・・固定抵抗、Ｄｌ・・・発
光ダイオード。FIG. 1 is a schematic diagram showing an example of a heat fixing device to which the present invention can be applied, and FIG. 2 is a circuit example of an embodiment of the present invention. 1... Heat roll, 2... Teflon coat, 3
...Temperature sensing element, 4...Heater, 5...Transfer material, 6...Unfixed powder image, 7...Nonwoven fabric impregnated with anti-offset agent, 8, 9...Roller , 10...
・Crimping roller, 11.12... Separation claw, Hl...
Fixing heater, THL...Fusing heater temperature adjustment thermistor 1, TH2... Room temperature detection thermistor, Ql
...Operational amplifier, Q2...Microcomputer, R1-R6...Fixed resistor, Dl...Light emitting diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 定着用ヒータの温度を検知する、定着用ヒータ温度調節
用サーミスタの他に室温用又は機内温度用検知サーミス
タを設け、これら両者のサーミスタの検知温度を比較す
ることにより、上記定着用ヒータがオンした後、予め定
められた一定時間が経過しても上記定着用ヒータ温度調
節用サーミスタの検知温度が室温又は機内温度ＴＲ十予
め定められた一定温度Ｔｃに達しない時に、上記定着用
ヒータ温度調節用サーミスタの断線検知をするように構
成したことを特徴とする定着用ヒータ温度調節用サーミ
スタの断線検知装置。In addition to the fixing heater temperature adjustment thermistor that detects the temperature of the fixing heater, a room temperature or machine temperature detection thermistor is provided, and by comparing the detected temperatures of both these thermistors, the fixing heater is turned on. After that, when the temperature detected by the thermistor for adjusting the temperature of the fixing heater does not reach the room temperature or the internal temperature TR or the predetermined constant temperature Tc even after a predetermined period of time has elapsed, the temperature of the fixing heater is adjusted. A disconnection detection device for a thermistor for temperature adjustment of a fixing heater, characterized in that the device is configured to detect disconnection of the thermistor.
JP16849781U 1981-11-12 1981-11-12 Disconnection detection device for thermistor for fixing heater temperature adjustment Pending JPS5874267U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16849781U JPS5874267U (en) 1981-11-12 1981-11-12 Disconnection detection device for thermistor for fixing heater temperature adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16849781U JPS5874267U (en) 1981-11-12 1981-11-12 Disconnection detection device for thermistor for fixing heater temperature adjustment

Publications (1)

Publication Number Publication Date
JPS5874267U true JPS5874267U (en) 1983-05-19

Family

ID=29960546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16849781U Pending JPS5874267U (en) 1981-11-12 1981-11-12 Disconnection detection device for thermistor for fixing heater temperature adjustment

Country Status (1)

Country Link
JP (1) JPS5874267U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011186018A (en) * 2010-03-05 2011-09-22 Casio Electronics Co Ltd Abnormal state detector for fixing device
JP2013214110A (en) * 2013-07-19 2013-10-17 Casio Electronics Co Ltd Printer and fixing device thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011186018A (en) * 2010-03-05 2011-09-22 Casio Electronics Co Ltd Abnormal state detector for fixing device
JP2013214110A (en) * 2013-07-19 2013-10-17 Casio Electronics Co Ltd Printer and fixing device thereof

Similar Documents

Publication Publication Date Title
JPS5874267U (en) Disconnection detection device for thermistor for fixing heater temperature adjustment
JPS5968372U (en) Heat fixing device
JPS61121450U (en)
JPS6388871U (en)
JPS599370U (en) Fusing device
JPH01160473U (en)
JPS61128665U (en)
JPS60118170U (en) Fusing device abnormal temperature prevention device
JPH0363167U (en)
JPS6262937U (en)
JPS59137527U (en) Bathtub with alarm device
JPS61106756U (en)
JPS62173660U (en)
JPH0185859U (en)
JPH01147769U (en)
JPS63105169U (en)
JPH0447712U (en)
JPS6259830U (en)
JPS5883004U (en) High frequency heating device
JPS6345568U (en)
JPH02117562U (en)
JPS6070853U (en) temperature control device
JPS6394447U (en)
JPS61203764U (en)
JPS6258782U (en)