JPS54122127A - Magnetic toner development process - Google Patents
Magnetic toner development processInfo
- Publication number
- JPS54122127A JPS54122127A JP2950678A JP2950678A JPS54122127A JP S54122127 A JPS54122127 A JP S54122127A JP 2950678 A JP2950678 A JP 2950678A JP 2950678 A JP2950678 A JP 2950678A JP S54122127 A JPS54122127 A JP S54122127A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- corona discharger
- image
- ohm
- magnets
- 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 enhance transfer efficiency with a developer free of carrier, by charging the developer prepared by mixing a low resistance toner with a high resistance toner, by corona discharge immediately before development.
CONSTITUTION: The photosensitive surface of drum 1 successively passes by corona discharger 2a for destaticization, ultraviolet lamp 3, and cleaner 4, and a static latent image is formed on its surface with corona discharger 2b for precharging and exposer 5. Toner A prepared by blending a magnetic colored resin powder of resistivity below 1014 ohm.cm with a magnetic colored resin powder of resistivity above 1014 ohm.cm in an amount of 20W50 % based on the total weight is supplied onto the outer surface of sleeve 6 from storage container 8, attracted by the magnetic force of magnets 7 to sleeve 6, and conveyed in the direction reverse to that of rotation of magnets 7. On this way toner A is charged with corona discharger 2c and forms a toner image A on the photosensitive surface of drum 1. Image A is contacted to plain paper 9 and transferred to paper 9 with corona discharger 2d for transfer.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2950678A JPS54122127A (en) | 1978-03-15 | 1978-03-15 | Magnetic toner development process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2950678A JPS54122127A (en) | 1978-03-15 | 1978-03-15 | Magnetic toner development process |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54122127A true JPS54122127A (en) | 1979-09-21 |
Family
ID=12277966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2950678A Pending JPS54122127A (en) | 1978-03-15 | 1978-03-15 | Magnetic toner development process |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54122127A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5794755A (en) * | 1980-12-04 | 1982-06-12 | Ricoh Co Ltd | Method for electronic photography |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5045639A (en) * | 1973-08-27 | 1975-04-23 | ||
JPS5333152A (en) * | 1976-09-08 | 1978-03-28 | Matsushita Electric Ind Co Ltd | Dry developer agent |
-
1978
- 1978-03-15 JP JP2950678A patent/JPS54122127A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5045639A (en) * | 1973-08-27 | 1975-04-23 | ||
JPS5333152A (en) * | 1976-09-08 | 1978-03-28 | Matsushita Electric Ind Co Ltd | Dry developer agent |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5794755A (en) * | 1980-12-04 | 1982-06-12 | Ricoh Co Ltd | Method for electronic photography |
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