JPS5596970A - Roller type fixing device in electrophotographic copier - Google Patents

Roller type fixing device in electrophotographic copier

Info

Publication number
JPS5596970A
JPS5596970A JP386779A JP386779A JPS5596970A JP S5596970 A JPS5596970 A JP S5596970A JP 386779 A JP386779 A JP 386779A JP 386779 A JP386779 A JP 386779A JP S5596970 A JPS5596970 A JP S5596970A
Authority
JP
Japan
Prior art keywords
roller
pressure
toner images
fixing device
contact roller
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
JP386779A
Other languages
Japanese (ja)
Inventor
Masanao Ozeki
Akira Kitaoka
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP386779A priority Critical patent/JPS5596970A/en
Publication of JPS5596970A publication Critical patent/JPS5596970A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve offset preventing effect by so applying DC voltage that fixing roller and pressure-contact roller assume the specified potentials.
CONSTITUTION: In the heating pressure roller type fixing device consisting of a heat- and pressure fixing roller 1 comprising providing an insulation covering 3 such as of fluorine resin on the surface of a rigid metal roller and incorporating a heater 4 in the inside and a pressure-contact roller 2 comprising the similar insulation covering 3 on the surface of a rigid metal roller, a fixed DC voltage is so applied to the both rollers 1, 2 that the fixing roller 1 assumes the same potential as the charging polarity of the toner images B and that the pressure contact roller 2 assumes the potential opposite from the charging polarity of the toner images B. As a result of this, a constant electrostatic pressure is generated between the fixing roller 1 and toner images B at the time when the toner images B are to be fixed onto the substrate A. This also generates a constant electrostatic attraction between the pressure contact roller 2 and toner images B, whereby the intended object is achieved.
COPYRIGHT: (C)1980,JPO&Japio
JP386779A 1979-01-19 1979-01-19 Roller type fixing device in electrophotographic copier Pending JPS5596970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP386779A JPS5596970A (en) 1979-01-19 1979-01-19 Roller type fixing device in electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP386779A JPS5596970A (en) 1979-01-19 1979-01-19 Roller type fixing device in electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS5596970A true JPS5596970A (en) 1980-07-23

Family

ID=11569134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP386779A Pending JPS5596970A (en) 1979-01-19 1979-01-19 Roller type fixing device in electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS5596970A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934570A (en) * 1982-08-23 1984-02-24 Canon Inc Picture forming device
JPS59157676A (en) * 1983-02-28 1984-09-07 Canon Inc Fixing device
JPS59157671A (en) * 1983-02-28 1984-09-07 Canon Inc Fixing device
US4616917A (en) * 1982-10-20 1986-10-14 Canon Kabushiki Kaisha Fixing device
JPS62242979A (en) * 1986-04-15 1987-10-23 Fuji Xerox Co Ltd Offset preventive mechanism for fixing device
JPS6321964U (en) * 1986-07-28 1988-02-13
JPH02253283A (en) * 1989-03-28 1990-10-12 Canon Inc Image forming device
JPH03145682A (en) * 1989-10-31 1991-06-20 Canon Inc Fixing device
JPH0452673A (en) * 1990-06-21 1992-02-20 Canon Inc Fixing device
US6005594A (en) * 1990-03-26 1999-12-21 Canon Kabushiki Kaisha Fixing apparatus having a fixing roller with a non-adhesive surface layer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4991459A (en) * 1972-12-29 1974-08-31

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4991459A (en) * 1972-12-29 1974-08-31

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934570A (en) * 1982-08-23 1984-02-24 Canon Inc Picture forming device
JPH0529910B2 (en) * 1982-08-23 1993-05-06 Canon Kk
US4616917A (en) * 1982-10-20 1986-10-14 Canon Kabushiki Kaisha Fixing device
JPS59157676A (en) * 1983-02-28 1984-09-07 Canon Inc Fixing device
JPS59157671A (en) * 1983-02-28 1984-09-07 Canon Inc Fixing device
JPS62242979A (en) * 1986-04-15 1987-10-23 Fuji Xerox Co Ltd Offset preventive mechanism for fixing device
JPS6321964U (en) * 1986-07-28 1988-02-13
JPH02253283A (en) * 1989-03-28 1990-10-12 Canon Inc Image forming device
JPH03145682A (en) * 1989-10-31 1991-06-20 Canon Inc Fixing device
US6005594A (en) * 1990-03-26 1999-12-21 Canon Kabushiki Kaisha Fixing apparatus having a fixing roller with a non-adhesive surface layer
US6347211B2 (en) 1990-03-26 2002-02-12 Canon Kabushiki Kaisha Fixing apparatus preventing leakage of electric current from inner surface of fixing roller
JPH0452673A (en) * 1990-06-21 1992-02-20 Canon Inc Fixing device

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