JPS55124156A - Two-color developing method - Google Patents
Two-color developing methodInfo
- Publication number
- JPS55124156A JPS55124156A JP3208279A JP3208279A JPS55124156A JP S55124156 A JPS55124156 A JP S55124156A JP 3208279 A JP3208279 A JP 3208279A JP 3208279 A JP3208279 A JP 3208279A JP S55124156 A JPS55124156 A JP S55124156A
- Authority
- JP
- Japan
- Prior art keywords
- toners
- liquids
- kinds
- dissolve
- mix
- 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
Abstract
PURPOSE: To prevent the adsorption and cohesion of both toners and obtain good two-color images by using the developing solution composed of two kinds of insulation-type liquids of different specific gravities which do not mix and dissolve with each other and two kinds of toners of different colors which charge to mutually opposite polarities.
CONSTITUTION: The developing solution composed of two kinds of insulation-type liquids L1 and L2 of different specific gravities which not not mix and dissolve with each other and two kinds of toners T1 and T2 of different colors which charge to mutually opposite polarities contained in a vessel 14 is used for a developing device 7. As a result of this the both toners T1, T2 are charged to mutually opposite polarities in such a manner as to be protected by the respective liquids L1, L2 and therefore their mutual attraction does not occur. Even more, the both liquids L1, L2 will not mix and dissolve with each other and therefore even if the both liquids are mixed in the vessel 14, the charging state is maintained, In this way, the attraction and cohesion of the both toners may be prevented and the two-color images of good image quality obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3208279A JPS55124156A (en) | 1979-03-19 | 1979-03-19 | Two-color developing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3208279A JPS55124156A (en) | 1979-03-19 | 1979-03-19 | Two-color developing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55124156A true JPS55124156A (en) | 1980-09-25 |
JPS6256508B2 JPS6256508B2 (en) | 1987-11-26 |
Family
ID=12348947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3208279A Granted JPS55124156A (en) | 1979-03-19 | 1979-03-19 | Two-color developing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55124156A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4500616A (en) * | 1982-09-20 | 1985-02-19 | Konishiroku Photo Industry Co., Ltd. | Extraction developing method for electrostatic latent images |
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 |
US4947201A (en) * | 1988-06-06 | 1990-08-07 | Spectrum Sciences | Imaging system |
US4966824A (en) * | 1988-06-06 | 1990-10-30 | Spectrum Sciences | Liquid toner composition containing two different charge directors |
US5012300A (en) * | 1988-06-06 | 1991-04-30 | Spectrum Sciences B.V. | Two-color imaging system and process |
US5121164A (en) * | 1988-06-06 | 1992-06-09 | Spectrum Sciences B.V. | Method for maintaining a liquid composition |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4858837A (en) * | 1971-09-30 | 1973-08-17 | ||
JPS4914612U (en) * | 1972-05-09 | 1974-02-07 |
-
1979
- 1979-03-19 JP JP3208279A patent/JPS55124156A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4858837A (en) * | 1971-09-30 | 1973-08-17 | ||
JPS4914612U (en) * | 1972-05-09 | 1974-02-07 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4500616A (en) * | 1982-09-20 | 1985-02-19 | Konishiroku Photo Industry Co., Ltd. | Extraction developing method for electrostatic latent images |
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 |
EP0343924A2 (en) * | 1988-05-23 | 1989-11-29 | Xerox Corporation | Liquid developer compositions |
US4947201A (en) * | 1988-06-06 | 1990-08-07 | Spectrum Sciences | Imaging system |
US4966824A (en) * | 1988-06-06 | 1990-10-30 | Spectrum Sciences | Liquid toner composition containing two different charge directors |
US5012300A (en) * | 1988-06-06 | 1991-04-30 | Spectrum Sciences B.V. | Two-color imaging system and process |
US5121164A (en) * | 1988-06-06 | 1992-06-09 | Spectrum Sciences B.V. | Method for maintaining a liquid composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6256508B2 (en) | 1987-11-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57188061A (en) | Electrophotographing device | |
DE69033437T2 (en) | ELECTROPHOTOGRAPHIC TONER AND DEVELOPER COMPOSITIONS AND COLOR IMAGE PROCESSING METHODS WHEREVER THEY ARE USED | |
JPS55124156A (en) | Two-color developing method | |
JPS5428141A (en) | Liquid developer for static latent image | |
JPS52156632A (en) | Dry-system developing agent for electrophotography | |
JPS556340A (en) | Electrostatic latent image developing method | |
JPS5683760A (en) | Two-color developing method | |
JPS5760340A (en) | Development agent for one component electrostatic charge image | |
JPS5526574A (en) | Toner for color electrophotography | |
JPS5436726A (en) | Dry type development for zerography | |
JPS5711355A (en) | Color developing method | |
JPS55166669A (en) | Image forming method | |
JPS5587173A (en) | Multicolor developing method | |
JPS52147444A (en) | Electrostatic latent image development | |
JPS5764252A (en) | Charge type magnetic toner | |
JPS6481968A (en) | Liquid color developer for electrostatic photography | |
JPS5543561A (en) | Two color developing method | |
JPS5528020A (en) | Magnetic toner | |
JPS57130052A (en) | Developing method | |
JPS56165152A (en) | Toner composition for developing electrostatic charge | |
JPS55111953A (en) | Dichromatic electrophotographic copying method | |
JPS54113340A (en) | Cleaning device for color copier | |
JPS5517143A (en) | Two color recording method | |
JPS56161565A (en) | Developing device in two-color copying device | |
JPS561962A (en) | Two color developing device |