JPH0435156U - - Google Patents
Info
- Publication number
- JPH0435156U JPH0435156U JP7661790U JP7661790U JPH0435156U JP H0435156 U JPH0435156 U JP H0435156U JP 7661790 U JP7661790 U JP 7661790U JP 7661790 U JP7661790 U JP 7661790U JP H0435156 U JPH0435156 U JP H0435156U
- Authority
- JP
- Japan
- Prior art keywords
- toner carrier
- center point
- straight line
- regulating member
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims 2
- 230000003187 abdominal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の実施例を示す電子写真装置の
現像装置の断面図、第２図は従来の電子写真装置
の現像装置の断面図、第３図は本考案の電子写真
装置の現像装置の塗布ロールの配置図、第４図は
本考案の電子写真装置の現像装置の規制ブレード
の配置図、第５図はべた黒印刷を行つた場合の光
学反射濃度の比較図である。
２１……感光ドラム、２２……現像ロール、２
３……塗布ロール、２４……トナー、２５……補
助供給ブラシ、２６……トナー収容槽、２７……
撹拌ロール、２８……規制ブレード、２９……回
収ブレード。
FIG. 1 is a sectional view of a developing device of an electrophotographic device showing an embodiment of the present invention, FIG. 2 is a sectional view of a developing device of a conventional electrophotographic device, and FIG. 3 is a sectional view of a developing device of an electrophotographic device of the present invention. FIG. 4 is a layout diagram of the regulating blade of the developing device of the electrophotographic apparatus of the present invention, and FIG. 5 is a comparison diagram of optical reflection density when solid black printing is performed. 21...Photosensitive drum, 22...Developing roll, 2
3... Application roll, 24... Toner, 25... Auxiliary supply brush, 26... Toner storage tank, 27...
Stirring roll, 28...Regulation blade, 29...Recovery blade.
Claims (1)
トナー担持体と、 (b) 該トナー担持体に接触して現像剤を搬送す
る塗布ロールと、 (c) 上記トナー担持体に供給された現像剤の層
厚を規制するため、トナー担持体にその腹部の面
を圧接させて配設した板状弾性体の規制部材とを
有しており、 (d) 上記塗布ロールの中心点と上記トナー担持
体の中心点とを結ぶ直線と、上記トナー担持体の
中心点から重力方向に向かう直線とのなす角度を
αとし、トナー担持体の回転方向を＋、逆転方向
を−としたときに −９０°≦α≦＋４５° の範囲に上記塗布ロールを設置し、 (e) 上記規制部材と上記トナー担持体の接線の
法線と、上記トナー担持体の中心点から重力方向
に向かう直線とのなす角度をβとし、トナー担持
体の回転方向を＋、逆転方向を−としたときに ＋４５°≦β≦＋１８０° の範囲に上記規制部材を設置したことを特徴とす
る電子写真装置の現像装置。[Claims for Utility Model Registration] (a) A toner carrier that carries and moves a non-magnetic one-component developer; (b) An applicator roll that conveys the developer by contacting the toner carrier; ( c) In order to regulate the layer thickness of the developer supplied to the toner carrier, the toner carrier has a regulating member made of a plate-like elastic body disposed with its abdominal surface in pressure contact with the toner carrier; d) The angle between the straight line connecting the center point of the applicator roll and the center point of the toner carrier and the straight line from the center point of the toner carrier in the direction of gravity is α, and the rotation direction of the toner carrier is α. +, the application roll is installed in the range of -90°≦α≦+45° when the reverse direction is -, (e) the normal line of the tangent between the regulating member and the toner carrier, and the toner carrier The above-mentioned regulating member was installed in the range of +45°≦β≦+180°, where β is the angle between the center point and a straight line in the direction of gravity, + is the rotational direction of the toner carrier, and − is the reverse direction of the toner carrier. A developing device for an electrophotographic device, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7661790U JPH0435156U (en) | 1990-07-20 | 1990-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7661790U JPH0435156U (en) | 1990-07-20 | 1990-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0435156U true JPH0435156U (en) | 1992-03-24 |
Family
ID=31618250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7661790U Pending JPH0435156U (en) | 1990-07-20 | 1990-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0435156U (en) |
-
1990
- 1990-07-20 JP JP7661790U patent/JPH0435156U/ja active Pending
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