JPS5596970A - Roller type fixing device in electrophotographic copier - Google Patents
Roller type fixing device in electrophotographic copierInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4991459A (en) * | 1972-12-29 | 1974-08-31 |
-
1979
- 1979-01-19 JP JP386779A patent/JPS5596970A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4991459A (en) * | 1972-12-29 | 1974-08-31 |
Cited By (12)
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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