JPH0285448U - - Google Patents
Info
- Publication number
- JPH0285448U JPH0285448U JP16472588U JP16472588U JPH0285448U JP H0285448 U JPH0285448 U JP H0285448U JP 16472588 U JP16472588 U JP 16472588U JP 16472588 U JP16472588 U JP 16472588U JP H0285448 U JPH0285448 U JP H0285448U
- Authority
- JP
- Japan
- Prior art keywords
- developing roller
- longitudinal direction
- base material
- plate
- developer
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Developing For Electrophotography (AREA)
Description
第1図aはこの考案の一実施例の正面図、第1
図bはその側面図、第2図はその使用状態を説明
する説明図、第3図は第1図の要部の拡大図、第
4図、第5図および第6図は突条部の変形例の説
明図、第7図は従来例の使用状態説明図である。
2……現像ローラ、6……トナー、8……層形
成部材、9……基材、10……圧接部材、11…
…突条部。
Figure 1a is a front view of one embodiment of this invention;
Figure b is a side view of the same, Figure 2 is an explanatory diagram explaining its usage, Figure 3 is an enlarged view of the main part of Figure 1, and Figures 4, 5, and 6 are of the protrusions. An explanatory diagram of a modified example, and FIG. 7 is an explanatory diagram of a conventional example in use. 2... Developing roller, 6... Toner, 8... Layer forming member, 9... Base material, 10... Pressing member, 11...
...projection.
Claims (1)
たばね弾性をもつ板状基材と、この板状基材の他
端側の端面に長手方向に沿つて所定幅で形成され
たゴム弾性をもつ圧接部材を備え、上記圧接部材
の長手方向に沿う一端縁側を上記板状基材のばね
弾性を利用して現像ローラの外周面に圧接し、現
像ローラの外周面に層状に供給された現像剤を摩
擦帯電させると同時に、現像剤層の厚みを適正に
規制する層形成部材であつて、上記圧接部材の他
端側もしくはその他端側近傍の板状基材の部分に
、上記現像ローラに供給される現像剤のうちの過
剰分を現像ローラの外周面から掻き落とすことの
できる突条部を長手方向に沿つて設けたことを特
徴とする層形成部材。 A plate-like base material with spring elasticity, one end of which is formed in the fixing part along the longitudinal direction, and a pressure-welded material with rubber elasticity, which is formed with a predetermined width along the longitudinal direction on the end face of the other end of this plate-like base material. one end along the longitudinal direction of the pressing member is pressed against the outer circumferential surface of the developing roller by utilizing the spring elasticity of the plate-shaped base material, and the developer supplied in a layer on the outer circumferential surface of the developing roller is A layer forming member for triboelectrically charging and at the same time appropriately regulating the thickness of the developer layer, which is supplied to the developing roller at a portion of the plate-shaped base material on the other end side of the pressing member or near the other end side. What is claimed is: 1. A layer forming member characterized in that a protrusion is provided along the longitudinal direction of the developing roller to scrape off an excess amount of the developer from the outer peripheral surface of the developing roller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16472588U JPH0285448U (en) | 1988-12-19 | 1988-12-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16472588U JPH0285448U (en) | 1988-12-19 | 1988-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0285448U true JPH0285448U (en) | 1990-07-04 |
Family
ID=31450576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16472588U Pending JPH0285448U (en) | 1988-12-19 | 1988-12-19 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0285448U (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5451848A (en) * | 1977-09-30 | 1979-04-24 | Canon Inc | Developing device |
JPS6051857A (en) * | 1983-08-31 | 1985-03-23 | Toshiba Corp | Developing device |
JPS62209570A (en) * | 1986-03-11 | 1987-09-14 | Konishiroku Photo Ind Co Ltd | Developping device for copying machine and the like |
-
1988
- 1988-12-19 JP JP16472588U patent/JPH0285448U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5451848A (en) * | 1977-09-30 | 1979-04-24 | Canon Inc | Developing device |
JPS6051857A (en) * | 1983-08-31 | 1985-03-23 | Toshiba Corp | Developing device |
JPS62209570A (en) * | 1986-03-11 | 1987-09-14 | Konishiroku Photo Ind Co Ltd | Developping device for copying machine and the like |