JPH0311260U - - Google Patents
Info
- Publication number
- JPH0311260U JPH0311260U JP7191789U JP7191789U JPH0311260U JP H0311260 U JPH0311260 U JP H0311260U JP 7191789 U JP7191789 U JP 7191789U JP 7191789 U JP7191789 U JP 7191789U JP H0311260 U JPH0311260 U JP H0311260U
- Authority
- JP
- Japan
- Prior art keywords
- developing device
- developer
- developer carrier
- carrier
- 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
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図は本考案による現像装置の正面断面図、
第２図は該現像装置の要部斜視図、第３図は従来
の現像装置の断面図である。
１……感光体ドラム（像担持体）、２……現像
装置本体（ケーシング）、２Ａ……仕切り壁、２
Ｂ……突起部、２Ｃ……現像剤受け皿部、３……
磁気ロール、４……現像スリーブ（現像剤担持体
）、５……穂立規制板、６……主撹拌手段、７…
…第一搬送手段、８……第二搬送手段、７１……
受け皿部材、７２……搬送スクリユー、８１……
搬送スクリユー、Ｄ……現像剤、Ｔ……補給新規
トナー、Ｎ１……主磁石、Ｓ１〜Ｓ４，Ｎ２，Ｎ
３……副磁石。
FIG. 1 is a front sectional view of the developing device according to the present invention.
FIG. 2 is a perspective view of essential parts of the developing device, and FIG. 3 is a sectional view of the conventional developing device. 1... Photosensitive drum (image carrier), 2... Developing device body (casing), 2A... Partition wall, 2
B...Protrusion, 2C...Developer tray, 3...
Magnetic roll, 4... Developing sleeve (developer carrier), 5... Ear standing regulation plate, 6... Main stirring means, 7...
...First conveyance means, 8...Second conveyance means, 71...
Receiver member, 72... Conveyance screw, 81...
Conveyance screw, D...Developer, T...Replenish new toner, N1...Main magnet, S1-S4, N2, N
3...Sub magnet.
Claims (1)
設け像担持体上の静電潜像に現像剤を付着させて
可視像化する現像装置において、前記現像剤担持
体を収容する現像装置ケーシングの内壁底部に、
上記現像剤担持体の周面に近接するような突起部
を設けたことを特徴とする現像装置。 (2) 前記突起部の先端と現像剤担持体周面との
間隙を、該現像剤担持体上に形成された現像剤の
磁穂の高さより僅か広めに設定したことを特徴と
する請求項１に記載の現像装置。 (3) 前記突起部を、前記現像剤担持体の内方に
固設された磁石に近接した位置に設けたことを特
徴とする請求項１または２に記載の現像装置。[Scope of Claim for Utility Model Registration] (1) In a developing device in which a developer carrier is provided in close opposition to an image carrier and a developer is attached to an electrostatic latent image on the image carrier to make it visible, At the bottom of the inner wall of the developing device casing that accommodates the developer carrier,
A developing device characterized in that a protrusion is provided close to the circumferential surface of the developer carrier. (2) Claim characterized in that the gap between the tip of the protrusion and the circumferential surface of the developer carrier is set to be slightly wider than the height of the magnetic ear of the developer formed on the developer carrier. 1. The developing device according to 1. (3) The developing device according to claim 1 or 2, wherein the protrusion is provided in a position close to a magnet fixedly provided inside the developer carrier.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7191789U JPH0311260U (en) | 1989-06-19 | 1989-06-19 | |
| US07/539,152 US5103765A (en) | 1989-06-19 | 1990-06-18 | Developing device with a toner leakage prevention member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7191789U JPH0311260U (en) | 1989-06-19 | 1989-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0311260U true JPH0311260U (en) | 1991-02-04 |
Family
ID=31609383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7191789U Pending JPH0311260U (en) | 1989-06-19 | 1989-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0311260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021039247A (en) * | 2019-09-04 | 2021-03-11 | 富士ゼロックス株式会社 | Developing device and image formation device |
-
1989
- 1989-06-19 JP JP7191789U patent/JPH0311260U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021039247A (en) * | 2019-09-04 | 2021-03-11 | 富士ゼロックス株式会社 | Developing device and image formation device |