JPS63148960U - - Google Patents
Info
- Publication number
- JPS63148960U JPS63148960U JP4141187U JP4141187U JPS63148960U JP S63148960 U JPS63148960 U JP S63148960U JP 4141187 U JP4141187 U JP 4141187U JP 4141187 U JP4141187 U JP 4141187U JP S63148960 U JPS63148960 U JP S63148960U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- magnetic
- flux density
- density distribution
- magnetic flux
- 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
- 230000004907 flux Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000032258 transport Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図は、本考案の一実施例としての現像装置
を示す概略構成断面図、第２図、第３図、第４図
は、本考案の現像スリーブ周面に形成される磁束
密度を示す模式図、第５図は、従来の現像装置の
一実施例を示す構成図、第６図は、従来の現像装
置の一実施例を示す磁石部の拡大断面図である。
Ｄ……現像剤、１……現像ホツパ、２……現像
スリーブ、３……感光体ドラム、４……磁石ロー
ル、５……規制部材、７，８，９，１０，１０′
……磁石、１１……磁石ロール、１２……残量検
知手段、１３……磁石ロール軸、１４……現像主
極、１５，１６，１７，１８……搬送極。
FIG. 1 is a schematic cross-sectional view showing a developing device as an embodiment of the present invention, and FIGS. 2, 3, and 4 show the magnetic flux density formed on the circumferential surface of the developing sleeve of the present invention. A schematic diagram, FIG. 5 is a configuration diagram showing an embodiment of a conventional developing device, and FIG. 6 is an enlarged sectional view of a magnet portion showing an embodiment of the conventional developing device. D... Developer, 1... Development hopper, 2... Development sleeve, 3... Photosensitive drum, 4... Magnet roll, 5... Regulating member, 7, 8, 9, 10, 10'
... Magnet, 11 ... Magnet roll, 12 ... Remaining amount detection means, 13 ... Magnet roll shaft, 14 ... Main developing pole, 15, 16, 17, 18 ... Transport pole.
Claims (1)
状の現像剤搬送部材と、該現像剤搬送部材内部に
固定設置された複数の磁極を有する磁石部材と、
該磁石部材の隣接する同極性磁極によつて前記現
像剤搬送部材上に形成される法線方向の磁束密度
分布内に該搬送部材と対向して配設される現像剤
層厚規制部材とを有する現像装置において、 前記磁石部材は、前記磁束密度分布の二つの極
大値間に位置する極小値が前記二つの極大値の内
でいずれか小さい方の極大値と同極性或いは逆極
性で２０％を越えない値の磁束密度分布となるよ
う構成されたことを特徴とする現像装置。[Claims for Utility Model Registration] A rotatable cylindrical developer transporting member that holds and transports developer on its outer peripheral surface; a magnet member having a plurality of magnetic poles fixedly installed inside the developer transporting member;
a developer layer thickness regulating member disposed facing the conveying member within a magnetic flux density distribution in the normal direction formed on the developer conveying member by adjacent magnetic poles of the same polarity of the magnetic member; In the developing device, the magnetic member has a minimum value located between the two maximum values of the magnetic flux density distribution that has the same polarity or the opposite polarity as the smaller of the two maximum values, and has a polarity of 20%. A developing device characterized in that it is configured to have a magnetic flux density distribution with a value not exceeding .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4141187U JPS63148960U (en) | 1987-03-20 | 1987-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4141187U JPS63148960U (en) | 1987-03-20 | 1987-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63148960U true JPS63148960U (en) | 1988-09-30 |
Family
ID=30856388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4141187U Pending JPS63148960U (en) | 1987-03-20 | 1987-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63148960U (en) |
-
1987
- 1987-03-20 JP JP4141187U patent/JPS63148960U/ja active Pending
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