JPS57133468A - Thermal fixing device - Google Patents

Thermal fixing device

Info

Publication number
JPS57133468A
JPS57133468A JP1993781A JP1993781A JPS57133468A JP S57133468 A JPS57133468 A JP S57133468A JP 1993781 A JP1993781 A JP 1993781A JP 1993781 A JP1993781 A JP 1993781A JP S57133468 A JPS57133468 A JP S57133468A
Authority
JP
Japan
Prior art keywords
temperature
sensitive ferrite
fixing device
ferrite
detecting element
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
JP1993781A
Other languages
Japanese (ja)
Inventor
Takashi Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP1993781A priority Critical patent/JPS57133468A/en
Publication of JPS57133468A publication Critical patent/JPS57133468A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2039—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To stabilize the performance for a long time and to improve the heat response, by using a magnetic temperature detecting element in a thermal fixing device and supporting a temperature-sensitive ferrite as this element by linear members not to bring this ferrite into contact with a fixing device. CONSTITUTION:A magnetic temperature detecting element is used in a fixing device with heat rollers to detect and control the temperature A doughnut- shaped temperature sensitive ferrite 1a is used as the magnetic temperature detecting element. The characteristic of the temperature sensitive ferrite which loses magnetism at a temperature higher than the Curie temperature is utilized, and a narrow wire 2 is wound around the temperature-sensitive ferrite 1a and is connected to a temperature controlling circuit 11 to control the temperature. Piano wires 10a and 10b are wound around the temperature-sensitive ferrite 1a, and the temperature-sensitive ferrite 1a is pulled to both side and is spread 1mm. away from a heat roller 4. The overshoot value at this time is an allowable value, and the offset phenomenon does not occur. Thus, the fixing performance is stabilized and the heat response is improved.
JP1993781A 1981-02-12 1981-02-12 Thermal fixing device Pending JPS57133468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1993781A JPS57133468A (en) 1981-02-12 1981-02-12 Thermal fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1993781A JPS57133468A (en) 1981-02-12 1981-02-12 Thermal fixing device

Publications (1)

Publication Number Publication Date
JPS57133468A true JPS57133468A (en) 1982-08-18

Family

ID=12013115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1993781A Pending JPS57133468A (en) 1981-02-12 1981-02-12 Thermal fixing device

Country Status (1)

Country Link
JP (1) JPS57133468A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7473871B2 (en) * 2003-12-03 2009-01-06 Panasonic Corporation Heating apparatus, fixing apparatus and image forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7473871B2 (en) * 2003-12-03 2009-01-06 Panasonic Corporation Heating apparatus, fixing apparatus and image forming apparatus

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