JPS61167670U - - Google Patents
Info
- Publication number
- JPS61167670U JPS61167670U JP5172485U JP5172485U JPS61167670U JP S61167670 U JPS61167670 U JP S61167670U JP 5172485 U JP5172485 U JP 5172485U JP 5172485 U JP5172485 U JP 5172485U JP S61167670 U JPS61167670 U JP S61167670U
- Authority
- JP
- Japan
- Prior art keywords
- roll
- magnet
- developing
- disposed
- developing roll
- 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 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図〜第２図は本考案の一実施例を示すもの
で、第１図は本考案の現像装置の断面説明図、第
２図は第１図の各現像ロール並びにマグネツトロ
ール内に組込まれた固定磁石の配置説明図を示し
、また第３図〜第４図は従来の現像装置を示す断
面説明図及び固定磁石の配置説明図である。
符号説明、１……感光ドラム、２……ハウジン
グ、３ａ，３ｂ……現像ロール、４……マグネツ
トロール、５……パドル、６，７，８……スリー
ブ、９……現像剤、１０……穂立。
Figures 1 and 2 show one embodiment of the present invention. Figure 1 is a cross-sectional explanatory diagram of the developing device of the present invention, and Figure 2 shows the inside of each developing roll and magnet roll in Figure 1. An explanatory view of the arrangement of the incorporated fixed magnets is shown, and FIGS. 3 and 4 are explanatory cross-sectional views showing a conventional developing device and explanatory views of the arrangement of the fixed magnets. Description of symbols, 1... Photosensitive drum, 2... Housing, 3a, 3b... Developing roll, 4... Magnet roll, 5... Paddle, 6, 7, 8... Sleeve, 9... Developer, 10 ... Hotate.
Claims (1)
この内部に組込まれた複数の磁石とから成る現像
ロールと、この現像ロールの近傍に配設され、回
転スリーブと複数の磁石とから成る現像剤搬送用
マグネツトロールとを備え、上記各ロールが接近
する領域で、マグネツトロールから現像ロールへ
現像剤の供給を行う複写機の現像装置において、
上記領域に位置する現像ロール及びマグネツトロ
ールのスリーブ内には、各ロール間において吸引
磁界を形成するための極性の異なる少なくとも一
対の固定磁石を配設すると共に、現像ロールのス
リーブ内には、この上記固定磁石を基準にしてマ
グネツトロールの回転方向前方側に、マグネツト
ロールの上記固定磁石との間で反発磁界を形成す
るための同一極性の固定磁石を配設したことを特
徴とする複写機の現像装置。 a rotating sleeve disposed facing the photoreceptor;
A developing roll consisting of a plurality of magnets incorporated inside the developing roll, and a developer conveying magnet roll disposed near the developing roll and consisting of a rotating sleeve and a plurality of magnets, each of the above-mentioned rolls In the developing device of a copying machine, which supplies developer from the magnet roll to the developing roll in the approaching area,
At least a pair of fixed magnets with different polarities for forming an attractive magnetic field between each roll are disposed in the sleeves of the developing roll and magnet roll located in the above region, and in the sleeve of the developing roll, A fixed magnet of the same polarity is disposed on the forward side in the rotational direction of the magnet roll with respect to the fixed magnet, for forming a repulsive magnetic field with the fixed magnet of the magnet roll. Copying machine developing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5172485U JPS61167670U (en) | 1985-04-09 | 1985-04-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5172485U JPS61167670U (en) | 1985-04-09 | 1985-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61167670U true JPS61167670U (en) | 1986-10-17 |
Family
ID=30571030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5172485U Pending JPS61167670U (en) | 1985-04-09 | 1985-04-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61167670U (en) |
-
1985
- 1985-04-09 JP JP5172485U patent/JPS61167670U/ja active Pending