JPS5546769A - Electrostatic latent image development unit - Google Patents
Electrostatic latent image development unitInfo
- Publication number
- JPS5546769A JPS5546769A JP12061178A JP12061178A JPS5546769A JP S5546769 A JPS5546769 A JP S5546769A JP 12061178 A JP12061178 A JP 12061178A JP 12061178 A JP12061178 A JP 12061178A JP S5546769 A JPS5546769 A JP S5546769A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- toner
- magnetic
- rotation
- development unit
- 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.)
- Granted
Links
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To enable a development unit to securely replenish a one-component magnetic toner, to have simple structure, and to obtain always high quality images, by coating a developing roller with an elastic material, such as silicone rubber, and by feeding the toner with a magnetic roller. CONSTITUTION:One component toner T is successively scooped up by rotation of magnetic roller 6 in the rotation direction. Iron core 4 of developing roller 3 has magnetic poles opposite to that of roller 6 by induction, so toner T is attracted magnetically to the surface of roller 3. Even when the induced poles disappear on rotation of roller 3, toner T still attaches to the surface of roller 3 because of the surface energy of silicone rubber elastic layer 5. Toner T is regulated in thickness by doctor 7, and at the same time is friction charged to the opposite polarity. Thus, this unit permits toner replenishment to be ensured, its structure to be simple, and high quality images to be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12061178A JPS5546769A (en) | 1978-09-29 | 1978-09-29 | Electrostatic latent image development unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12061178A JPS5546769A (en) | 1978-09-29 | 1978-09-29 | Electrostatic latent image development unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5546769A true JPS5546769A (en) | 1980-04-02 |
JPS6211346B2 JPS6211346B2 (en) | 1987-03-12 |
Family
ID=14790522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12061178A Granted JPS5546769A (en) | 1978-09-29 | 1978-09-29 | Electrostatic latent image development unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5546769A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745573A (en) * | 1980-09-01 | 1982-03-15 | Hitachi Metals Ltd | Development device for magnetic toner |
JPS5746272A (en) * | 1980-09-05 | 1982-03-16 | Ricoh Co Ltd | Magnetic brush developing equipment |
JPS5942568A (en) * | 1982-09-03 | 1984-03-09 | Hitachi Ltd | Developing device |
JPS62208079A (en) * | 1986-03-07 | 1987-09-12 | Matsushita Electric Ind Co Ltd | Developing device |
JPH0590514U (en) * | 1992-05-11 | 1993-12-10 | 日立金属株式会社 | Development device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52146641A (en) * | 1976-05-31 | 1977-12-06 | Ricoh Co Ltd | Developing device for electrostatic latent image |
JPS52155539A (en) * | 1976-06-19 | 1977-12-24 | Ricoh Co Ltd | Developing device for electrostatic latent image |
JPS5329137A (en) * | 1976-08-30 | 1978-03-18 | Ricoh Co Ltd | Developing device for electrostatic latent image |
-
1978
- 1978-09-29 JP JP12061178A patent/JPS5546769A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52146641A (en) * | 1976-05-31 | 1977-12-06 | Ricoh Co Ltd | Developing device for electrostatic latent image |
JPS52155539A (en) * | 1976-06-19 | 1977-12-24 | Ricoh Co Ltd | Developing device for electrostatic latent image |
JPS5329137A (en) * | 1976-08-30 | 1978-03-18 | Ricoh Co Ltd | Developing device for electrostatic latent image |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745573A (en) * | 1980-09-01 | 1982-03-15 | Hitachi Metals Ltd | Development device for magnetic toner |
JPS5746272A (en) * | 1980-09-05 | 1982-03-16 | Ricoh Co Ltd | Magnetic brush developing equipment |
JPS5942568A (en) * | 1982-09-03 | 1984-03-09 | Hitachi Ltd | Developing device |
JPS62208079A (en) * | 1986-03-07 | 1987-09-12 | Matsushita Electric Ind Co Ltd | Developing device |
JPH0590514U (en) * | 1992-05-11 | 1993-12-10 | 日立金属株式会社 | Development device |
Also Published As
Publication number | Publication date |
---|---|
JPS6211346B2 (en) | 1987-03-12 |
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