JPS5687061A - Magnetic toner two-color developing method - Google Patents
Magnetic toner two-color developing methodInfo
- Publication number
- JPS5687061A JPS5687061A JP16446479A JP16446479A JPS5687061A JP S5687061 A JPS5687061 A JP S5687061A JP 16446479 A JP16446479 A JP 16446479A JP 16446479 A JP16446479 A JP 16446479A JP S5687061 A JPS5687061 A JP S5687061A
- Authority
- JP
- Japan
- Prior art keywords
- electrostatic latent
- charged
- magnetic toner
- latent image
- toners
- 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 complete 2-color development by once development without causing background stain, by rotating and moving the first and second colored magnetic toners provided with charges different from each other in polarity by friction charging in order to develop an electrostatic latent image.
CONSTITUTION: Insulating magnetic toners 18, 19 are attached to sleeve 21 containing magnetic roller 6, and carried in the direction of arrow C. At that time, the first colored magnetic toner 18 and the second colored magnetic toner 19 are charged by friction with the surface of sleeve 21. Each of toners 18, 19 is charged to a polarity reverse to each other due to the difference of each material property. Toners 18, 19 charged positively and negatively are attracted by positive and negative electrostatic latent images 4, 5 formed on photosensitive drum 20, e.g. in an electrostatic latent image formation process by the mutual electrostatic attraction, thus permitting negatively charged the second magnetic toner 19 to be attached to the areas of positive electrostatic latent image 4, and positively charged the first magnetic toner 18 to be attached to the areas of negative electrostatic latent image 5.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16446479A JPS5687061A (en) | 1979-12-18 | 1979-12-18 | Magnetic toner two-color developing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16446479A JPS5687061A (en) | 1979-12-18 | 1979-12-18 | Magnetic toner two-color developing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5687061A true JPS5687061A (en) | 1981-07-15 |
Family
ID=15793665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16446479A Pending JPS5687061A (en) | 1979-12-18 | 1979-12-18 | Magnetic toner two-color developing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5687061A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63123063A (en) * | 1986-11-03 | 1988-05-26 | ゼロツクス コーポレーシヨン | Image printer and method by black and several stressed colors with single pass |
| JPS63172180A (en) * | 1986-12-29 | 1988-07-15 | ゼロツクス コーポレーシヨン | Printer |
| US4830945A (en) * | 1988-05-23 | 1989-05-16 | Xerox Corporation | Liquid electrophotographic developer comprising oppositely charged toner particles and dyes of different colors |
| US4877698A (en) * | 1988-05-23 | 1989-10-31 | Xerox Corporation | Electrophotographic process for generating two-color images using liquid developer |
| US4935782A (en) * | 1987-03-26 | 1990-06-19 | Kabushiki Kaisha Toshiba | Image forming apparatus using a developer including invisible and colored particles |
-
1979
- 1979-12-18 JP JP16446479A patent/JPS5687061A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63123063A (en) * | 1986-11-03 | 1988-05-26 | ゼロツクス コーポレーシヨン | Image printer and method by black and several stressed colors with single pass |
| JPS63172180A (en) * | 1986-12-29 | 1988-07-15 | ゼロツクス コーポレーシヨン | Printer |
| US4935782A (en) * | 1987-03-26 | 1990-06-19 | Kabushiki Kaisha Toshiba | Image forming apparatus using a developer including invisible and colored particles |
| US4830945A (en) * | 1988-05-23 | 1989-05-16 | Xerox Corporation | Liquid electrophotographic developer comprising oppositely charged toner particles and dyes of different colors |
| US4877698A (en) * | 1988-05-23 | 1989-10-31 | Xerox Corporation | Electrophotographic process for generating two-color images using liquid developer |
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