JPS60159451U - developing device - Google Patents
developing deviceInfo
- Publication number
- JPS60159451U JPS60159451U JP4731184U JP4731184U JPS60159451U JP S60159451 U JPS60159451 U JP S60159451U JP 4731184 U JP4731184 U JP 4731184U JP 4731184 U JP4731184 U JP 4731184U JP S60159451 U JPS60159451 U JP S60159451U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- polarity
- magnetic carrier
- developing device
- 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
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の現像装置を示す断面図、第２図は本考案
を適用した二色画像形成装置の要部を示す断面図、第３
図は本考案の他の実施例を示す断面図である。
１・・・感光体、２・・・第１現像器、３・・・第２現
像器、４・・・第１現像スリーブ、５・・・第１マグネ
ツト ・ロール、６・・・第２現像スリーブ、７・・・
第２マグネツトロール、８，８ａ・・・ドクターブレー
ド、９゜９ａ・・・穂切りスクレーパ、１０．１０ａ・
・・攪拌板、１１・・・導電性ローラ、１２・・・掻き
取りロール、１３・・・ブレード、１４・・・トナー収
納ケース、１５・・・掻き落し板、１６・・・仕切り板
、１７・・・黒色トナー、１８・・・赤色トナー、１９
，１９ａ・・・磁性キャリア、２０・・・第２現像装置
、２１・・・容器、２２・・・現像ロール、２３・・・
分離ローラ、２４・・・掻き取り部材、２５・・・回収
容器。FIG. 1 is a sectional view showing a conventional developing device, FIG. 2 is a sectional view showing main parts of a two-color image forming apparatus to which the present invention is applied, and FIG.
The figure is a sectional view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Photoreceptor, 2... First developing device, 3... Second developing device, 4... First developing sleeve, 5... First magnet roll, 6... Second Developing sleeve, 7...
2nd magnetic roll, 8, 8a...Doctor blade, 9°9a...Ear cutting scraper, 10.10a...
... Stirring plate, 11... Conductive roller, 12... Scraping roll, 13... Blade, 14... Toner storage case, 15... Scraping plate, 16... Partition plate, 17...Black toner, 18...Red toner, 19
, 19a...Magnetic carrier, 20...Second developing device, 21...Container, 22...Developing roll, 23...
Separation roller, 24... scraping member, 25... recovery container.
Claims (1)
り所定の極性に帯電されたトナーとからなる現像剤を静
電潜像の形成された像担持体に摺擦させ、前記静電潜像
を現像する現像装置に於て、前記トナーの帯電極性と同
極性のバイアスが印加され、前記現像剤中から前記トナ
ーとは帯電極性の異なる異極性トナーを除去する異極性
トナー除去手段と、該異極性トナー除去手段により前記
異極性トナーと共に除去される磁性キャリアを前記現像
剤中に戻す磁性キャリア戻し手段とを設けたことを特徴
とする現像装置。A developer consisting of at least a magnetic carrier and a toner charged to a predetermined polarity due to friction between the magnetic carrier is rubbed against an image bearing member on which an electrostatic latent image is formed to develop the electrostatic latent image. In the apparatus, a bias having the same polarity as the charge polarity of the toner is applied, and a different polarity toner removing means removes a different polarity toner having a different charge polarity from the toner from the developer; A developing device comprising: magnetic carrier returning means for returning the magnetic carrier removed together with the different polarity toner by the means into the developer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4731184U JPS60159451U (en) | 1984-03-31 | 1984-03-31 | developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4731184U JPS60159451U (en) | 1984-03-31 | 1984-03-31 | developing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60159451U true JPS60159451U (en) | 1985-10-23 |
Family
ID=30562517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4731184U Pending JPS60159451U (en) | 1984-03-31 | 1984-03-31 | developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60159451U (en) |
-
1984
- 1984-03-31 JP JP4731184U patent/JPS60159451U/en active Pending
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