JPH03122453U - - Google Patents
Info
- Publication number
- JPH03122453U JPH03122453U JP3051190U JP3051190U JPH03122453U JP H03122453 U JPH03122453 U JP H03122453U JP 3051190 U JP3051190 U JP 3051190U JP 3051190 U JP3051190 U JP 3051190U JP H03122453 U JPH03122453 U JP H03122453U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- carrier
- latent image
- toner carrier
- dielectric
- 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.)
- Granted
Links
- 239000003989 dielectric material Substances 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000005530 etching Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は現像装置の一例を示す概略断面図、第
２図は現像ローラの誘電体と該ローラに付着する
トナーを模式的に拡大して示した説明図、第３図
は同じく誘電体を模式的に拡大して示した現像ロ
ーラ表面の平面図、第４図は誘電体により形成さ
れる微小電界の電気力線を示した説明図、第５図
は導電性ローラの斜視図、第６図ａ，ｂ，ｃ，ｄ
は現像ローラの各製造工程を示す拡大模式図、第
７図はマスキング部材の拡大平面図である。
２……現像装置、４……非磁性トナー、９……
現像領域、１１……誘電体、１１ａ……誘電物質
、１２……導電部。
FIG. 1 is a schematic cross-sectional view showing an example of a developing device, FIG. 2 is an explanatory diagram schematically showing a dielectric of a developing roller and toner attached to the roller, and FIG. FIG. 4 is an explanatory diagram showing lines of electric force of a minute electric field formed by a dielectric; FIG. 5 is a perspective view of the conductive roller; FIG. Figures a, b, c, d
7 is an enlarged schematic view showing each manufacturing process of the developing roller, and FIG. 7 is an enlarged plan view of the masking member. 2...Developing device, 4...Nonmagnetic toner, 9...
Development area, 11... dielectric, 11a... dielectric material, 12... conductive part.
Claims (1)
供給し、該担持体の表面に前記トナーを担持して
搬送し、潜像担持体と前記トナー担持体が互いに
対向した現像領域にて、該潜像担持体に形成され
た静電潜像をトナー担持体に担持した前記トナー
によつて可視像化する現像装置において、 前記トナー担持体として、導電性の基体にエツ
チング処理により微小ないしは微小幅の凹部を形
成し、その上に誘電物質をコーテイングした後、
その表面を研磨して、前記基体の導電部と、前記
誘電物質より成る誘電体とを表面に露出させたト
ナー担持体を用い、 前記誘電体を所定の極性に帯電させることによ
り、トナー担持体表面の近傍に微小閉電界を形成
し、静電潜像の可視像化に用いられる前記トナー
を、前記閉電界によつてトナー担持体表面に付着
させる帯電手段を設けたことを特徴とする現像装
置。[Claims for Utility Model Registration] Non-magnetic toner is supplied to a rotationally driven toner carrier, the toner is carried on the surface of the carrier and is conveyed, and the latent image carrier and the toner carrier face each other. In the developing device, the electrostatic latent image formed on the latent image carrier is visualized by the toner carried on the toner carrier in the developing region, wherein the toner carrier is a conductive substrate. After forming a minute or minute width concavity by etching and coating the dielectric material on it,
Using a toner carrier whose surface has been polished to expose the conductive portion of the base and a dielectric made of the dielectric material, the toner carrier is charged to a predetermined polarity by charging the dielectric to a predetermined polarity. A charging means is provided which forms a minute closed electric field near the surface and causes the toner used for visualizing the electrostatic latent image to adhere to the surface of the toner carrier by the closed electric field. Developing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990030511U JP2563013Y2 (en) | 1990-03-27 | 1990-03-27 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990030511U JP2563013Y2 (en) | 1990-03-27 | 1990-03-27 | Developing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03122453U true JPH03122453U (en) | 1991-12-13 |
| JP2563013Y2 JP2563013Y2 (en) | 1998-02-18 |
Family
ID=31533223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990030511U Expired - Lifetime JP2563013Y2 (en) | 1990-03-27 | 1990-03-27 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2563013Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5782853A (en) * | 1980-11-11 | 1982-05-24 | Canon Inc | Developing method |
| JPS6054150U (en) * | 1983-09-20 | 1985-04-16 | 株式会社東芝 | developing device |
-
1990
- 1990-03-27 JP JP1990030511U patent/JP2563013Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5782853A (en) * | 1980-11-11 | 1982-05-24 | Canon Inc | Developing method |
| JPS6054150U (en) * | 1983-09-20 | 1985-04-16 | 株式会社東芝 | developing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2563013Y2 (en) | 1998-02-18 |
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