JPS63118055U - - Google Patents
Info
- Publication number
- JPS63118055U JPS63118055U JP945687U JP945687U JPS63118055U JP S63118055 U JPS63118055 U JP S63118055U JP 945687 U JP945687 U JP 945687U JP 945687 U JP945687 U JP 945687U JP S63118055 U JPS63118055 U JP S63118055U
- Authority
- JP
- Japan
- Prior art keywords
- developing sleeve
- developer
- developing
- sleeve
- tank
- 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
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案にかかる現像装置の一実施例を
示す断面図、第２図は磁気ローラの磁力分布状態
を示す図、第３図は現像スリーブ上における現像
剤の搬送状態を示す図である。
１…感光体ドラム、２…現像装置、３…ケーシ
ング、４…カバー、５…仕切り板、６…現像スリ
ーブ、７…磁気ローラ、８…穂高規制部材、１１
…現像剤供給ローラ、１６…補給ローラ、２０…
通路、Ｓ１〜Ｓ４，Ｎ１〜Ｎ３…磁極。
FIG. 1 is a cross-sectional view showing an embodiment of the developing device according to the present invention, FIG. 2 is a view showing the magnetic force distribution state of the magnetic roller, and FIG. 3 is a view showing the conveyance state of the developer on the developing sleeve. be. DESCRIPTION OF SYMBOLS 1...Photosensitive drum, 2...Developing device, 3...Casing, 4...Cover, 5...Partition plate, 6...Developing sleeve, 7...Magnetic roller, 8...Bear height regulating member, 11
...Developer supply roller, 16...Replenishment roller, 20...
Passage, S1 to S4 , N1 to N3 ...Magnetic pole.
Claims (1)
像スリーブと、該現像スリーブの側部に配置され
、その表面に現像剤を供給する現像剤供給ローラ
と、前記現像スリーブと現像剤供給ローラとを収
容するとともに、内面をこれらの外周面に沿つて
形成した現像槽と、前記現像スリーブに内蔵され
、軸方向に延在する磁極を周方向に配設するとと
もに、前記現像剤供給ローラ側に同極を隣接させ
、そのうち現像スリーブの回転方向上流側に位置
する磁極を、静電潜像担体と現像スリーブとが対
向する現像領域の下流側で、かつ、現像スリーブ
の中心と、現像槽と現像スリーブ周面との間隔が
広がり始める点とを結ぶ線よりも下流側に配置し
た磁気ローラと、を備えたことを特徴とする現像
装置。 A rotatably driven developing sleeve disposed opposite to the electrostatic latent image carrier; a developer supply roller disposed on the side of the developing sleeve for supplying developer to the surface thereof; and the developing sleeve and the developer supply roller. and a developer tank having an inner surface formed along the outer peripheral surface thereof, a magnetic pole built in the developer sleeve and extending in the axial direction, and disposed in the circumferential direction, and a developer tank having an inner surface formed along the outer peripheral surface of the developer tank, and a magnetic pole built in the developer sleeve and extending in the axial direction. The same poles are placed adjacent to each other, and the magnetic pole located on the upstream side in the rotational direction of the developing sleeve is positioned downstream of the developing area where the electrostatic latent image carrier and the developing sleeve face each other, and between the center of the developing sleeve and the developing tank. A developing device comprising: a magnetic roller disposed on the downstream side of a line connecting a point where the distance between the developing sleeve and the circumferential surface of the developing sleeve begins to widen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP945687U JPS63118055U (en) | 1987-01-26 | 1987-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP945687U JPS63118055U (en) | 1987-01-26 | 1987-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63118055U true JPS63118055U (en) | 1988-07-30 |
Family
ID=30794789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP945687U Pending JPS63118055U (en) | 1987-01-26 | 1987-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63118055U (en) |
-
1987
- 1987-01-26 JP JP945687U patent/JPS63118055U/ja active Pending