JPS57155573A - Heating roll for fixing device - Google Patents
Heating roll for fixing deviceInfo
- Publication number
- JPS57155573A JPS57155573A JP3952181A JP3952181A JPS57155573A JP S57155573 A JPS57155573 A JP S57155573A JP 3952181 A JP3952181 A JP 3952181A JP 3952181 A JP3952181 A JP 3952181A JP S57155573 A JPS57155573 A JP S57155573A
- Authority
- JP
- Japan
- Prior art keywords
- heating roll
- release agent
- roll
- offset
- oil
- 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
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
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
- G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
PURPOSE:To distribute a release agent uniformly over the entire surface of a heating roll and to prevent the generation of offset by forming the heat-resistant coating layer of the surface of said roll porous. CONSTITUTION:When the surface tension of the heat resistant coating layer (tetrafluoroethylene resin layer) 4 of a heating roll 1 is smaller slightly than the surface tension of a release agent (silicone oil) 7, the wetting of the oil to the roll surface is not sufficient and this produces the areas where no oil films exist partially, which can lead to offset. If the layer 4 is formed porous, the apparent surface area of the heating roll increases and the wetting to the release agent is improved. In addition, the release agent percolates into the pores and as a result, the release agent distributes uniformly over the entire surface of the heating roll thereby generating virtually no offset on the surface of the heating roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3952181A JPS57155573A (en) | 1981-03-20 | 1981-03-20 | Heating roll for fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3952181A JPS57155573A (en) | 1981-03-20 | 1981-03-20 | Heating roll for fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57155573A true JPS57155573A (en) | 1982-09-25 |
Family
ID=12555341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3952181A Pending JPS57155573A (en) | 1981-03-20 | 1981-03-20 | Heating roll for fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57155573A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60133470U (en) * | 1984-02-15 | 1985-09-05 | 株式会社 潤工社 | Roller fixing device |
| JPS60186883A (en) * | 1984-03-06 | 1985-09-24 | Junkosha Co Ltd | Roller fixing device |
| KR100408293B1 (en) * | 2001-08-29 | 2003-12-01 | 삼성전자주식회사 | Image drying unit for electrophotographic printer |
-
1981
- 1981-03-20 JP JP3952181A patent/JPS57155573A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60133470U (en) * | 1984-02-15 | 1985-09-05 | 株式会社 潤工社 | Roller fixing device |
| JPS60186883A (en) * | 1984-03-06 | 1985-09-24 | Junkosha Co Ltd | Roller fixing device |
| JPH0339313B2 (en) * | 1984-03-06 | 1991-06-13 | Junkosha Co Ltd | |
| KR100408293B1 (en) * | 2001-08-29 | 2003-12-01 | 삼성전자주식회사 | Image drying unit for electrophotographic printer |
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