JPH0373947U - - Google Patents
Info
- Publication number
- JPH0373947U JPH0373947U JP13440989U JP13440989U JPH0373947U JP H0373947 U JPH0373947 U JP H0373947U JP 13440989 U JP13440989 U JP 13440989U JP 13440989 U JP13440989 U JP 13440989U JP H0373947 U JPH0373947 U JP H0373947U
- Authority
- JP
- Japan
- Prior art keywords
- latent image
- image carrier
- toner
- developing device
- protrusion
- 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
- 238000010586 diagram Methods 0.000 description 5
- 108091008695 photoreceptors Proteins 0.000 description 4
- 230000005684 electric field Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の一実施例を説明するのに用い
た現像装置の概略構成図、第２図は上記現像装置
において平板電極と感光体との間を通過するトナ
ー粒子の挙動について説明するための図、第３図
は平板電極と感光体との間の電界について説明す
るための図、第４図は本考案一実施例の現像装置
に備えられる平板電極と感光体との相互位置関係
を示す図、第５図は別の例の平板電極を示す図、
第６図は更に別の平板電極を示す図、第７図は突
起部に切り欠き口を設けた平板電極の斜視図、第
８図は突起部の両端側に鋸歯状部を設けた平板電
極の斜視図である。
１……潜像担持体としての感光体、２……現像
装置、８，１８，２８……平板電極、８ｃ，１８
ｃ，２８ｃ……突起部。
Figure 1 is a schematic diagram of a developing device used to explain an embodiment of the present invention, and Figure 2 explains the behavior of toner particles passing between a flat plate electrode and a photoreceptor in the developing device. FIG. 3 is a diagram for explaining the electric field between the flat electrode and the photoreceptor, and FIG. 4 is a diagram showing the mutual positional relationship between the flat electrode and the photoreceptor provided in the developing device according to an embodiment of the present invention. FIG. 5 is a diagram showing another example of a flat plate electrode,
Figure 6 is a diagram showing yet another flat plate electrode, Figure 7 is a perspective view of a flat plate electrode with a notch in the protrusion, and Figure 8 is a flat plate electrode with serrations provided on both ends of the protrusion. FIG. 1...Photoreceptor as a latent image carrier, 2...Developing device, 8, 18, 28... Flat plate electrode, 8c, 18
c, 28c... protrusion.
Claims (1)
体の移動に伴つて生じる層状の気流に乗せ、潜像
担持体と、これに対向させた平板電極との間を通
過させつつ、両者の間の、潜像担持体移動方向下
流側の現像部で、その間を通るトナーを潜像担持
体の側に付着させることにより、潜像担持体の静
電潜像をトナー像として顕像化するようにした現
像装置において、 前記平板電極に、現像部に向かう層状の気流を
乱すための突起部を設けたことを特徴とする現像
装置。 (2) 突起部の、潜像担持体に最も近接する部分
を、絶縁部とした請求項１記載の現像装置。[Claims for Utility Model Registration] (1) Powdered toner is suspended and carried on a layered air current generated as the latent image carrier moves, and the latent image carrier and a flat plate electrode facing the latent image carrier are used. At the developing section on the downstream side in the moving direction of the latent image carrier, the toner passing between the two is allowed to adhere to the side of the latent image carrier, thereby reducing the electrostatic charge of the latent image carrier. A developing device configured to visualize a latent image as a toner image, characterized in that the flat electrode is provided with a protrusion for disrupting a laminar airflow toward the developing section. (2) The developing device according to claim 1, wherein the portion of the protrusion closest to the latent image carrier is an insulating portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13440989U JPH0373947U (en) | 1989-11-21 | 1989-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13440989U JPH0373947U (en) | 1989-11-21 | 1989-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0373947U true JPH0373947U (en) | 1991-07-25 |
Family
ID=31681747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13440989U Pending JPH0373947U (en) | 1989-11-21 | 1989-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0373947U (en) |
-
1989
- 1989-11-21 JP JP13440989U patent/JPH0373947U/ja active Pending
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