JPH0276747U - - Google Patents
Info
- Publication number
- JPH0276747U JPH0276747U JP15593788U JP15593788U JPH0276747U JP H0276747 U JPH0276747 U JP H0276747U JP 15593788 U JP15593788 U JP 15593788U JP 15593788 U JP15593788 U JP 15593788U JP H0276747 U JPH0276747 U JP H0276747U
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- regulating
- regulating means
- developing device
- developer
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000005389 magnetism Effects 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 claims 1
- 230000001846 repelling effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図は本考案の現像装置の一実施例を示す概
略断面図、第２図は第１図の現像装置の動作を説
明する要部断面図である。
１……現像装置、３……スリーブ、４……磁力
発生手段、６……規制部材、８……撹拌ローラ、
９……案内部材、４１……反発磁界形成磁石。
FIG. 1 is a schematic cross-sectional view showing an embodiment of the developing device of the present invention, and FIG. 2 is a cross-sectional view of essential parts explaining the operation of the developing device of FIG. DESCRIPTION OF SYMBOLS 1... Developing device, 3... Sleeve, 4... Magnetic force generating means, 6... Regulating member, 8... Stirring roller,
9... Guide member, 41... Repulsion magnetic field forming magnet.
Claims (1)
た円筒状スリーブと、該スリーブ内に固定して配
置された磁力発生手段と、該スリーブ上に供給さ
れる磁性現像剤の層厚を規制する規制手段とを有
する現像装置において、 前記規制手段による現像剤規制領域に位置する
前記磁力発生手段は２つの同極性の磁極を配置し
て反撥磁界を形成し、前記規制手段の先端を該反
撥磁界の間に配置するとともにスリーブの回転方
向の上流に向けてその形状を楔状に形成し、該規
制手段を前記スリーブと接触する位置と所定間隔
をもつて離間する位置に移動可能に設けたことを
特徴とする現像装置。[Claims for Utility Model Registration] A cylindrical sleeve rotatably provided facing the photoreceptor, a magnetic force generating means fixedly disposed within the sleeve, and magnetism supplied onto the sleeve. In a developing device having a regulating means for regulating the layer thickness of the developer, the magnetic force generating means located in a developer regulating region by the regulating means arranges two magnetic poles of the same polarity to form a repelling magnetic field, The distal end of the regulating means is disposed between the repulsive magnetic field and has a wedge-shaped shape facing upstream in the direction of rotation of the sleeve, and a position where the regulating means is in contact with the sleeve and a position separated by a predetermined distance. A developing device characterized in that it is movably provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15593788U JPH0276747U (en) | 1988-11-30 | 1988-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15593788U JPH0276747U (en) | 1988-11-30 | 1988-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0276747U true JPH0276747U (en) | 1990-06-12 |
Family
ID=31434017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15593788U Pending JPH0276747U (en) | 1988-11-30 | 1988-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0276747U (en) |
-
1988
- 1988-11-30 JP JP15593788U patent/JPH0276747U/ja active Pending