JPS5473054A - Dry type developer replenishing device - Google Patents
Dry type developer replenishing deviceInfo
- Publication number
- JPS5473054A JPS5473054A JP14138777A JP14138777A JPS5473054A JP S5473054 A JPS5473054 A JP S5473054A JP 14138777 A JP14138777 A JP 14138777A JP 14138777 A JP14138777 A JP 14138777A JP S5473054 A JPS5473054 A JP S5473054A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic powder
- magnetic
- vessel
- replenishing device
- developer replenishing
- 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
Abstract
PURPOSE: To always correspond the rate of replenishment to the rate of consumption by containing the magnetic powder and non-magnetic powder used as developer in separate vessels.
CONSTITUTION: A developer replenishing device A is constituted by vessels 12, 14 and a flocked roller 7. Non-magnetic power is contained in the vessel 12 and magnetic powder 15 in the vessel 14. Then, as the flocked roller 7 rotates, the non- magnetic powder 13 is supplied to the neighborhood of a non-magnetic sleeve 6 and deposits thereon by the friction charging with the magnetic powder 15 having already been attracted to said sleeve 6. Next, it is turned by the rotation of the magnet roller 5 to form a magnetic brush together with the magnetic powder 15 from the vessel 14. While the height thereof is being defined by a doctor plate 2, it makes contact with the electrostatic latent image on a photosensitive drum 1, thereby turning the same to the visible image. Hence, the non-magnetic powder 13 and magnetic powder 15 are replenished according to the rates of their consumption and the degradation in the picture image is prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14138777A JPS5473054A (en) | 1977-11-22 | 1977-11-22 | Dry type developer replenishing device |
US05/863,616 US4331757A (en) | 1976-12-29 | 1977-12-23 | Dry process developing method and device employed therefore |
DE2758726A DE2758726C2 (en) | 1976-12-29 | 1977-12-29 | Dry development process and apparatus for carrying out the process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14138777A JPS5473054A (en) | 1977-11-22 | 1977-11-22 | Dry type developer replenishing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5473054A true JPS5473054A (en) | 1979-06-12 |
Family
ID=15290802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14138777A Pending JPS5473054A (en) | 1976-12-29 | 1977-11-22 | Dry type developer replenishing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5473054A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60263976A (en) * | 1984-06-13 | 1985-12-27 | Oki Electric Ind Co Ltd | Electrophotograpic developing device |
JPS6175372A (en) * | 1984-09-20 | 1986-04-17 | Minolta Camera Co Ltd | Magnetic brush developing device |
JPS63110478A (en) * | 1986-10-29 | 1988-05-14 | Hitachi Metals Ltd | Developing method |
JPH02251875A (en) * | 1989-03-24 | 1990-10-09 | Ricoh Co Ltd | Developing device |
-
1977
- 1977-11-22 JP JP14138777A patent/JPS5473054A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60263976A (en) * | 1984-06-13 | 1985-12-27 | Oki Electric Ind Co Ltd | Electrophotograpic developing device |
JPS6175372A (en) * | 1984-09-20 | 1986-04-17 | Minolta Camera Co Ltd | Magnetic brush developing device |
JPS63110478A (en) * | 1986-10-29 | 1988-05-14 | Hitachi Metals Ltd | Developing method |
JPH02251875A (en) * | 1989-03-24 | 1990-10-09 | Ricoh Co Ltd | Developing device |
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