JPH0413962U - - Google Patents
Info
- Publication number
- JPH0413962U JPH0413962U JP5476390U JP5476390U JPH0413962U JP H0413962 U JPH0413962 U JP H0413962U JP 5476390 U JP5476390 U JP 5476390U JP 5476390 U JP5476390 U JP 5476390U JP H0413962 U JPH0413962 U JP H0413962U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- thickness
- developing device
- regulated
- developing
- 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
- 108091008695 photoreceptors Proteins 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は、本考案による現像装置の一実施例を
示す構成図、第２図は第１図のＡ部拡大図、第３
図は本考案の他の実施例を示す現像装置の構成図
、第４図は第３図のＡ部拡大図、第５図は一般に
知られている電子写真装置の現像装置の概略図、
第６図は第５図のＡ部拡大図である。
図において、１はトナー、２はキヤリア、３は
現像剤、４は現像ロール、５はドクター板、６は
感光体、７，８は遮蔽板である。
FIG. 1 is a configuration diagram showing an embodiment of the developing device according to the present invention, FIG. 2 is an enlarged view of section A in FIG. 1, and FIG.
The figure is a block diagram of a developing device showing another embodiment of the present invention, FIG. 4 is an enlarged view of section A in FIG. 3, and FIG. 5 is a schematic diagram of a developing device of a generally known electrophotographic apparatus.
FIG. 6 is an enlarged view of section A in FIG. In the figure, 1 is toner, 2 is a carrier, 3 is a developer, 4 is a developing roll, 5 is a doctor plate, 6 is a photoreceptor, and 7 and 8 are shielding plates.
Claims (1)
一定の割合で混合してある現像剤と、ある一定の
速度で回転し前記現像剤を搬送する現像ロールと
、ある一定の距離を持たせて前記現像ロールに対
向し前記現像剤の搬送厚さを制限するドクター板
と、ある一定の速度で回転し、かつある一定の距
離を持たせて前記現像ロールに対向し搬送厚さの
規制された前記現像剤と接触する時に現像剤中の
トナーによつて現像される光導電性のある感光体
で構成される電子写真装置の現像装置において、
前記感光体及び前記搬送厚さの規制された現像剤
とある一定の距離を持たせて対向する位置で、前
記ドクター板と前記現像剤の接点において現像剤
中のキヤリアから分離することにより飛散するト
ナーを再び現像剤中に戻す働きのある遮蔽板をド
クター板に取り付けたことを特徴とする電子写真
装置の現像装置。 ２ 上記遮蔽板は上記搬送厚さの規制された現像
剤と略同心円上に構成されたことを特徴とする請
求項１記載の電子写真装置の現像装置。[Claims for Utility Model Registration] 1. A developer in which toner and carrier are mixed at a certain ratio, which are frictionally charged with each other; a developing roll that rotates at a certain speed and conveys the developer; a doctor plate that faces the developing roll at a certain distance and limits the conveyance thickness of the developer; and a doctor plate that rotates at a certain speed and faces the developing roll at a certain distance and limits the conveyance thickness of the developer. In a developing device of an electrophotographic device, the developing device is composed of a photoconductive photoreceptor that is developed by toner in the developer when it comes into contact with the developer whose thickness is regulated,
The developer is separated from the carrier in the developer at a contact point between the doctor plate and the developer at a position facing the photoreceptor and the developer whose conveyance thickness is regulated at a certain distance, and is scattered. A developing device for an electrophotographic device, characterized in that a shielding plate that functions to return toner back into the developer is attached to a doctor plate. 2. The developing device for an electrophotographic apparatus according to claim 1, wherein the shielding plate is arranged approximately concentrically with the developer whose conveyance thickness is regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5476390U JPH0413962U (en) | 1990-05-25 | 1990-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5476390U JPH0413962U (en) | 1990-05-25 | 1990-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0413962U true JPH0413962U (en) | 1992-02-04 |
Family
ID=31577118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5476390U Pending JPH0413962U (en) | 1990-05-25 | 1990-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413962U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3110455B2 (en) * | 1992-03-03 | 2000-11-20 | 松下冷機株式会社 | Hermetic compressor |
-
1990
- 1990-05-25 JP JP5476390U patent/JPH0413962U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3110455B2 (en) * | 1992-03-03 | 2000-11-20 | 松下冷機株式会社 | Hermetic compressor |
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