JPS6291664U - - Google Patents
Info
- Publication number
- JPS6291664U JPS6291664U JP18457485U JP18457485U JPS6291664U JP S6291664 U JPS6291664 U JP S6291664U JP 18457485 U JP18457485 U JP 18457485U JP 18457485 U JP18457485 U JP 18457485U JP S6291664 U JPS6291664 U JP S6291664U
- Authority
- JP
- Japan
- Prior art keywords
- developing
- sleeve
- developing sleeve
- developing device
- portion corresponding
- 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 4
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図及び第２図は本考案の実施例を示し、第
１図は断面図、第２図は別実施例の断面図である
。そして第３図は従来例の断面図である。
１……感光体、２……開口部、３……現像ケー
ス、４……現像スリーブ、５ａ〜５ｄ……マグネ
ツト、１１……電磁石、Ａ……現像剤、Ｂ……現
像剤移送解除部。
1 and 2 show an embodiment of the present invention, with FIG. 1 being a sectional view and FIG. 2 being a sectional view of another embodiment. FIG. 3 is a sectional view of a conventional example. 1...Photoreceptor, 2...Opening, 3...Developing case, 4...Developing sleeve, 5a to 5d...Magnet, 11...Electromagnet, A...Developer, B...Developer transfer release section .
Claims (1)
像ケースの内部に、前記開口に臨ませる状態で現
像スリーブを設けると共に、該現像スリーブの外
面に現像剤の磁気ブラシを形成する複数個のマグ
ネツトを、周方向に所定間隔を隔てて前記現像ス
リーブの内部に配設した現像装置であつて、前記
感光体に相対応する部位とは反対側のスリーブ部
分に現像剤の移送解除部を形成するように、前記
現像スリーブの内部にマグネツトを静止状態で配
設すると共に、前記感光体に相対応する部位にお
いて前記現像スリーブを感光体とは逆方向に回転
自在に設け、かつ、前記現像剤移送解除部に対し
てスリーブ回転方向直下流側のマグネツトに対応
する部位に固定磁界を形成する電磁石を、非現像
時に通電制御されるコイル部分を除く一方の磁極
部分のみを現像ケース内に突入させて配置してあ
ることを特徴とする現像装置。 前記現像スリーブを備えた現像ケースを感光
体のまわりに複数個設けてあることを特徴とする
実用新案登録請求の範囲第項に記載の現像装置
。[Claims for Utility Model Registration] A developing sleeve is provided inside the developing case in which an opening is formed at a portion corresponding to the photoreceptor, facing the opening, and a magnetic brush for applying developer is provided on the outer surface of the developing sleeve. A developing device is provided with a plurality of magnets arranged inside the developing sleeve at predetermined intervals in the circumferential direction, the developing device having a plurality of magnets arranged inside the developing sleeve at predetermined intervals in the circumferential direction, the developing device having a plurality of magnets disposed inside the developing sleeve at predetermined intervals in the circumferential direction, and in which a developing device is provided in a portion of the sleeve opposite to a portion corresponding to the photoreceptor. A magnet is disposed inside the developing sleeve in a stationary state so as to form a transfer release portion, and the developing sleeve is rotatably disposed in a direction opposite to the photoconductor at a portion corresponding to the photoconductor. , and an electromagnet that forms a fixed magnetic field at a portion corresponding to the magnet immediately downstream in the direction of rotation of the sleeve with respect to the developer transfer release portion, with only one magnetic pole portion excluding a coil portion that is controlled to be energized during non-development. A developing device characterized in that it is arranged so as to protrude into a developing case. The developing device according to claim 1, wherein a plurality of developing cases each including the developing sleeve are provided around a photoreceptor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18457485U JPS6291664U (en) | 1985-11-29 | 1985-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18457485U JPS6291664U (en) | 1985-11-29 | 1985-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6291664U true JPS6291664U (en) | 1987-06-11 |
Family
ID=31132381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18457485U Pending JPS6291664U (en) | 1985-11-29 | 1985-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6291664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023027001A1 (en) | 2021-08-23 | 2023-03-02 | イーグル工業株式会社 | Electronic device |
-
1985
- 1985-11-29 JP JP18457485U patent/JPS6291664U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023027001A1 (en) | 2021-08-23 | 2023-03-02 | イーグル工業株式会社 | Electronic device |
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