JPS5745576A - Fixation temperature controller - Google Patents

Fixation temperature controller

Info

Publication number
JPS5745576A
JPS5745576A JP55121590A JP12159080A JPS5745576A JP S5745576 A JPS5745576 A JP S5745576A JP 55121590 A JP55121590 A JP 55121590A JP 12159080 A JP12159080 A JP 12159080A JP S5745576 A JPS5745576 A JP S5745576A
Authority
JP
Japan
Prior art keywords
paper
thickness
transmitted light
temp
resistor
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
JP55121590A
Other languages
Japanese (ja)
Inventor
Masayoshi Furuichi
Shigeru Shibazaki
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.)
Canon Finetech Nisca Inc
Original Assignee
Copyer Co Ltd
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 Copyer Co Ltd filed Critical Copyer Co Ltd
Priority to JP55121590A priority Critical patent/JPS5745576A/en
Publication of JPS5745576A publication Critical patent/JPS5745576A/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
    • 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)
  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To automatically control the temp. of a fixation device in such a way as to attain an optimum fixaton temp. for paper used by utilizing the fact that the quantity of transmitted light of the paper of the same quality changes according to the thickness of the paper. CONSTITUTION:Paper 2 fed from a feeding part of an electrophotographic copier passes between a luminous body 4 and a photosensitive element 6. At this time, the quantity of transmitted light of the paper of the same quality changes with thickness and the paper thickness and the quantity of transmitted light are roughly in a relation of inverse proportion. A resistor 8 is connected in series to the element 6, and since the quantity of transmitted light arriving at a photoreceptor 6 decreases as the thickness of the paper 2 increases, the internal resistance of the element 6 increases and the terminal voltage of the resistor 8 decreases. The terminal voltage of the resistor 8 is applied to Zener diodes 18, 20, 22 which are switching means, and the Zener voltages of the diodes 18, 20, 22 are respectively varied so as to permit discrimination of the thickness of the paper depending upon the difference in the quantity of transmitted light, whereby a temp. control circuit 40 is controlled.
JP55121590A 1980-09-02 1980-09-02 Fixation temperature controller Pending JPS5745576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55121590A JPS5745576A (en) 1980-09-02 1980-09-02 Fixation temperature controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121590A JPS5745576A (en) 1980-09-02 1980-09-02 Fixation temperature controller

Publications (1)

Publication Number Publication Date
JPS5745576A true JPS5745576A (en) 1982-03-15

Family

ID=14815006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55121590A Pending JPS5745576A (en) 1980-09-02 1980-09-02 Fixation temperature controller

Country Status (1)

Country Link
JP (1) JPS5745576A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512992A (en) * 1993-05-31 1996-04-30 Samsung Electronics Co., Ltd. Apparatus and method for controlling fusing temperature
JPH08248795A (en) * 1995-03-08 1996-09-27 Nec Corp Thermal fixing device for electrophotographic recording device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512992A (en) * 1993-05-31 1996-04-30 Samsung Electronics Co., Ltd. Apparatus and method for controlling fusing temperature
JPH08248795A (en) * 1995-03-08 1996-09-27 Nec Corp Thermal fixing device for electrophotographic recording device

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