JPH0365168U - - Google Patents
Info
- Publication number
- JPH0365168U JPH0365168U JP12638189U JP12638189U JPH0365168U JP H0365168 U JPH0365168 U JP H0365168U JP 12638189 U JP12638189 U JP 12638189U JP 12638189 U JP12638189 U JP 12638189U JP H0365168 U JPH0365168 U JP H0365168U
- Authority
- JP
- Japan
- Prior art keywords
- elastic layer
- pressure
- fixing device
- rollers
- sheet
- 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
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229920001875 Ebonite Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Fixing For Electrophotography (AREA)
Description
第１図はこの考案の一実施例である定着器を示
す概略構成図、第２図はその定着器を備える電子
写真装置の一例であるレーザプリンタでその内部
構造を示す概略構成図、第３図は画像の定着時に
変化する加熱ローラの表面温度を従来と比較して
示す図、第４図は同じ定着時に通紙部域と非通紙
部域とで異なる変化をする加圧ローラの表面温度
を従来と比較して示す図、第５図は定着器を示す
概略構成図である。
１７……用紙、２３……定着器、３０……加熱
ローラ、３１……加圧ローラ、３３……ヒータ、
３５……弾性層、３５ａ……外側の弾性層、３５
ｂ……内側の弾性層。
FIG. 1 is a schematic configuration diagram showing a fixing device which is an embodiment of this invention, FIG. 2 is a schematic configuration diagram showing the internal structure of a laser printer which is an example of an electrophotographic apparatus equipped with the fixing device, and FIG. The figure shows a comparison of the surface temperature of the heating roller that changes during image fixing compared to the conventional one. Figure 4 shows the surface temperature of the pressure roller that changes differently between the paper passing area and non-paper passing area during the same fixing. FIG. 5 is a diagram showing the temperature in comparison with the conventional one, and FIG. 5 is a schematic configuration diagram showing the fixing device. 17... paper, 23... fixing device, 30... heating roller, 31... pressure roller, 33... heater,
35...Elastic layer, 35a...Outer elastic layer, 35
b... Inner elastic layer.
Claims (1)
設ける加圧ローラを圧接し、それらローラを回転
し、その両ローラ間に転写後の用紙を通してその
用紙に画像を熱と圧力とで定着する電子写真装置
の定着器において、 外側の弾性層を硬く熱伝導率のよいゴム部材で
形成し、内側の弾性層を前記外側の弾性層より軟
らかく熱伝導率の悪いゴム部材で形成してなるこ
とを特徴とする、電子写真装置の定着器。[Claim for Utility Model Registration] A heating roller with a built-in heater is pressed against a pressure roller provided with an elastic layer on the outer periphery, these rollers are rotated, and a sheet of paper after transfer is passed between both rollers to heat the image on the sheet. In a fixing device for an electrophotographic device that fixes with pressure and pressure, the outer elastic layer is formed of a hard rubber member with good thermal conductivity, and the inner elastic layer is formed of a rubber member that is softer and has poorer thermal conductivity than the outer elastic layer. A fixing device for an electrophotographic device, characterized in that it is formed by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12638189U JPH0365168U (en) | 1989-10-27 | 1989-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12638189U JPH0365168U (en) | 1989-10-27 | 1989-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365168U true JPH0365168U (en) | 1991-06-25 |
Family
ID=31674194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12638189U Pending JPH0365168U (en) | 1989-10-27 | 1989-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365168U (en) |
-
1989
- 1989-10-27 JP JP12638189U patent/JPH0365168U/ja active Pending
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