JPS6430571U - - Google Patents
Info
- Publication number
- JPS6430571U JPS6430571U JP12479987U JP12479987U JPS6430571U JP S6430571 U JPS6430571 U JP S6430571U JP 12479987 U JP12479987 U JP 12479987U JP 12479987 U JP12479987 U JP 12479987U JP S6430571 U JPS6430571 U JP S6430571U
- Authority
- JP
- Japan
- Prior art keywords
- fixing roller
- sheet
- peeling member
- circumferential surface
- peeling
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Fixing For Electrophotography (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Description
第１図ａはこの考案に係る画像形成装置の剥離
装置の実施可能な数値を求めるためのパラメータ
ーを示す説明図、第１図ｂは第１図ａのＢ部拡大
図、第２図はこの考案に係る複写機の剥離装置を
備えた定着装置の概略構成図、第３図は同定着装
置の平面図、第４図は剥離されるシート上に定着
されるトナーの他の実施例を示す概略構成図であ
る。
［符号の説明］、１……定着ローラ、８……加
圧ローラ、９……シート、１０……剥離部材、１
１，１２，１３……分割部材、１１ａ，１２ａ，
１３ａ……先端エツジ部、Ｒ……先端エツジ部の
曲率半径、Ｇ……先端エツジ部と定着ローラの周
面部との間隙。
Fig. 1a is an explanatory diagram showing parameters for determining the practical values of the peeling device of the image forming apparatus according to this invention, Fig. 1b is an enlarged view of part B of Fig. 1a, and Fig. A schematic configuration diagram of a fixing device equipped with a peeling device of a copying machine according to the invention, FIG. 3 is a plan view of the fixing device, and FIG. 4 shows another embodiment of toner fixed on a sheet to be peeled off. It is a schematic block diagram. [Description of symbols], 1... Fixing roller, 8... Pressure roller, 9... Sheet, 10... Peeling member, 1
1, 12, 13...divided member, 11a, 12a,
13a...Top edge portion, R...Curvature radius of the tip edge portion, G...Gap between the tip edge portion and the circumferential surface of the fixing roller.
Claims (1)
し、シートを定着ローラと加圧ローラとで挾持押
圧しつつ搬送することにより、シート上にトナー
像を定着する定着装置を備え、上記定着ローラの
周面近傍にその軸方向に沿つて複数に分割された
剥離部材を設け、この剥離部材の先端エツジ部と
定着ローラの周面部との間に所定の間隙を形成し
てなる画像形成装置の剥離装置において、上記剥
離部材の先端エツジ部の曲率半径をＲ、剥離部材
の先端エツジ部と定着ローラの周面部との間隙を
Ｇとした場合、Ｒ≦Ｏ．２mmの場合には、Ｇ≦１
．５mmとし、０．２mm＜Ｒ＜０．７mmの場合には
、Ｇ≦５２５μｍとし、０．７mm≦Ｒ≦１．０mm
の場合には、Ｇ≦３００μｍとしたことを特徴と
する画像形成装置の剥離装置。 A fixing device includes a fixing roller and a pressure roller that is in pressure contact with the fixing roller, and fixes a toner image on the sheet by conveying the sheet while sandwiching and pressing the sheet between the fixing roller and the pressure roller. A peeling member divided into a plurality of parts along the axial direction is provided near the circumferential surface of the image forming apparatus, and a predetermined gap is formed between the tip edge of the peeling member and the circumferential surface of the fixing roller. In the peeling device, when the radius of curvature of the tip edge of the peeling member is R, and the gap between the tip edge of the peeling member and the circumferential surface of the fixing roller is G, R≦O. In case of 2mm, G≦1
．． 5mm, and if 0.2mm<R<0.7mm, G≦525μm, 0.7mm≦R≦1.0mm
In this case, a peeling device for an image forming apparatus, characterized in that G≦300 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987124799U JPH0727475Y2 (en) | 1987-08-18 | 1987-08-18 | Image forming device peeling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987124799U JPH0727475Y2 (en) | 1987-08-18 | 1987-08-18 | Image forming device peeling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6430571U true JPS6430571U (en) | 1989-02-23 |
| JPH0727475Y2 JPH0727475Y2 (en) | 1995-06-21 |
Family
ID=31374842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987124799U Expired - Lifetime JPH0727475Y2 (en) | 1987-08-18 | 1987-08-18 | Image forming device peeling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0727475Y2 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5381241A (en) * | 1976-12-27 | 1978-07-18 | Ricoh Co Ltd | Fixing roller device for electronic copying machine |
| JPS53143341A (en) * | 1977-05-20 | 1978-12-13 | Ricoh Co Ltd | Separation for fixing apparatus |
| JPS60189780A (en) * | 1984-03-12 | 1985-09-27 | Fuji Xerox Co Ltd | Form separating device of fixing device |
| JPS61236577A (en) * | 1985-04-12 | 1986-10-21 | Youbea Le-Ron Kogyo Kk | Separating claw for copying machine |
| JPS6268167U (en) * | 1985-10-17 | 1987-04-28 | ||
| JPS62127564U (en) * | 1986-02-03 | 1987-08-13 |
-
1987
- 1987-08-18 JP JP1987124799U patent/JPH0727475Y2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5381241A (en) * | 1976-12-27 | 1978-07-18 | Ricoh Co Ltd | Fixing roller device for electronic copying machine |
| JPS53143341A (en) * | 1977-05-20 | 1978-12-13 | Ricoh Co Ltd | Separation for fixing apparatus |
| JPS60189780A (en) * | 1984-03-12 | 1985-09-27 | Fuji Xerox Co Ltd | Form separating device of fixing device |
| JPS61236577A (en) * | 1985-04-12 | 1986-10-21 | Youbea Le-Ron Kogyo Kk | Separating claw for copying machine |
| JPS6268167U (en) * | 1985-10-17 | 1987-04-28 | ||
| JPS62127564U (en) * | 1986-02-03 | 1987-08-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0727475Y2 (en) | 1995-06-21 |