JPS6281966U - - Google Patents
Info
- Publication number
- JPS6281966U JPS6281966U JP17334385U JP17334385U JPS6281966U JP S6281966 U JPS6281966 U JP S6281966U JP 17334385 U JP17334385 U JP 17334385U JP 17334385 U JP17334385 U JP 17334385U JP S6281966 U JPS6281966 U JP S6281966U
- Authority
- JP
- Japan
- Prior art keywords
- developer carrier
- developer
- developing device
- magnetic
- sealing member
- 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
- 238000007789 sealing Methods 0.000 claims description 7
- 239000006249 magnetic particle Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図は本考案実施例の要部説明図、第２図は
第１図のシール部材の周辺現象を説明するための
模式図、第３図は第１図のシール部材、多孔質部
材の拡大説明図である。
１は感光ドラム、２は現像スリーブ、７は磁性
粒子、８はトナー、９は磁性部材、１１はシール
部材（フイルム）、１２は下部トナー補集発泡部
材。
Fig. 1 is an explanatory diagram of the main parts of the embodiment of the present invention, Fig. 2 is a schematic diagram for explaining peripheral phenomena of the sealing member shown in Fig. 1, and Fig. 3 is a diagram illustrating the sealing member and porous member shown in Fig. 1. It is an enlarged explanatory diagram. 1 is a photosensitive drum, 2 is a developing sleeve, 7 is a magnetic particle, 8 is a toner, 9 is a magnetic member, 11 is a sealing member (film), and 12 is a lower toner collecting foam member.
Claims (1)
る現像容器と、該開口部に設けられ少なくともト
ナーを担持して現像部へ搬送した後に現像容器内
へ至る無端回転を行う現像剤担持体と、該現像剤
担持体内に設けられた磁界発生手段と、該現像容
器の現像剤担持体出口側に位置して現像剤担持体
表面への現像剤量を規制する部材と、該現像容器
の現像剤担持体入口側に位置して現像剤担持体移
動方向に向う端部を有すると共に現像剤担持体表
面に接触するように弾性的に付勢されたシール部
材と、該シール部材に対して現像剤担持体移動方
向に関しての上流側に設けられた多孔質部材と、
を有することを特徴とする現像装置。 (2) 上記多孔質部材は上記シール部材の下流側
にも設けられると共に上記現像剤担持体の下方に
位置する実用新案登録請求の範囲第１項記載の現
像装置。 (3) 上記シール部材と多孔質部材は、上記規制
部材との間に磁性粒子とトナーを保持するための
磁性シール用の磁性部材よりも現像剤担持体移動
方向に関して上流側に位置している実用新案登録
請求の範囲第１項又は第２項記載の現像装置。 (4) 上記シール部材が上記現像剤担持体に近接
する位置は、上記磁界発生手段の磁極とは対向し
ていない位置である実用新案登録請求の範囲第１
項乃至第３項いずれかに記載の現像装置。 (5) 上記多孔質部材はトナーを収納用微細連続
気孔を有するものである実用新案登録請求の範囲
第１項乃至第４項いずれかに記載の現像装置。[Claims for Utility Model Registration] (1) A developer container having an opening and containing toner and magnetic particles; A developer carrier that rotates endlessly, a magnetic field generating means provided in the developer carrier, and a magnetic field generating means located on the developer carrier outlet side of the developer container to control the amount of developer on the developer carrier surface. a regulating member, and a seal located on the developer carrier inlet side of the developer container, having an end portion facing the developer carrier moving direction, and elastically biased to contact the developer carrier surface. a porous member provided on the upstream side with respect to the sealing member in the direction of movement of the developer carrier;
A developing device comprising: (2) The developing device according to claim 1, wherein the porous member is also provided on the downstream side of the sealing member and is located below the developer carrier. (3) The sealing member and the porous member are located upstream in the direction of movement of the developer carrier than the magnetic member for a magnetic seal for holding magnetic particles and toner between the regulating member. A developing device according to claim 1 or 2 of the utility model registration claim. (4) The position where the sealing member is close to the developer carrier is a position that is not opposed to the magnetic pole of the magnetic field generating means.
The developing device according to any one of items 1 to 3. (5) The developing device according to any one of claims 1 to 4, wherein the porous member has fine continuous pores for storing toner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17334385U JPS6281966U (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17334385U JPS6281966U (en) | 1985-11-11 | 1985-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6281966U true JPS6281966U (en) | 1987-05-25 |
Family
ID=31110714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17334385U Pending JPS6281966U (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6281966U (en) |
-
1985
- 1985-11-11 JP JP17334385U patent/JPS6281966U/ja active Pending
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