GB1256958A - - Google Patents
Info
- Publication number
- GB1256958A GB1256958A GB1256958DA GB1256958A GB 1256958 A GB1256958 A GB 1256958A GB 1256958D A GB1256958D A GB 1256958DA GB 1256958 A GB1256958 A GB 1256958A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- field
- sheets
- march
- reversed
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
- G03G15/108—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer with which the recording material is brought in contact, e.g. immersion or surface immersion development
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Wet Developing In Electrophotography (AREA)
Abstract
1,256,958. Electro-photographic developing processes. RICOH K. K. March 17, 1969 [March 25, 1968], No. 13809/69. Heading G2H. Electrostatic latent image bearing sheets are passed between development electrodes submerged in a solution containing charged toner particles; the field between the electrodes being reversed after developing each sheet so as to stop toner from accumulating on the electrodes. To obviate the need for reversing successive sheets as the field is reversed, electrodes 11, 12 are mounted on a shaft 14a which is rotated by a gear 15 to reverse the electrodes, positions and a commutator and brush arrangement 16 to 19 reverses the field as the shaft rotates. A number of electrode pairs may be used for large sheets. Instead of plate electrodes, rollers can be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1933568 | 1968-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1256958A true GB1256958A (en) | 1971-12-15 |
Family
ID=11996519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1256958D Expired GB1256958A (en) | 1968-03-25 | 1969-03-17 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3679453A (en) |
| DE (1) | DE1914935B2 (en) |
| FR (1) | FR2004683A1 (en) |
| GB (1) | GB1256958A (en) |
| NL (1) | NL142503B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5144408B1 (en) * | 1970-12-26 | 1976-11-29 | ||
| JPS5215976B1 (en) * | 1970-12-29 | 1977-05-06 | ||
| BE789560A (en) * | 1971-09-30 | 1973-01-15 | Commw Of Australia Represente | METHOD AND DEVICE FOR DEVELOPING ELECTROPHOTOGRAPHIC IMAGES |
| US3961949A (en) * | 1972-01-03 | 1976-06-08 | Xerox Corporation | Photoelectrophoretic imaging method producing a desired image border |
| US3886900A (en) * | 1972-08-01 | 1975-06-03 | Cellophane Sa | Apparatus for developing a latent charged image |
| USRE31964E (en) * | 1974-06-17 | 1985-08-06 | Savin Corporation | Automatic development electrode bias control system |
| JPS5174634A (en) * | 1974-12-24 | 1976-06-28 | Ricoh Kk | Denshishashinno baiasugenzohoho |
| US4183655A (en) * | 1975-10-07 | 1980-01-15 | Ricoh Company, Ltd. | Cleaning means for image transfer unit in electrophotographic copying machines |
| US5153090A (en) * | 1990-06-28 | 1992-10-06 | Commtech International Management Corporation | Charge directors for use in electrophotographic compositions and processes |
| JP5431746B2 (en) * | 2009-02-17 | 2014-03-05 | 徹 中井 | Charge supplier |
-
1969
- 1969-03-17 GB GB1256958D patent/GB1256958A/en not_active Expired
- 1969-03-19 NL NL696904254A patent/NL142503B/en unknown
- 1969-03-21 US US809243A patent/US3679453A/en not_active Expired - Lifetime
- 1969-03-24 DE DE19691914935 patent/DE1914935B2/en not_active Withdrawn
- 1969-03-25 FR FR6908717A patent/FR2004683A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| NL6904254A (en) | 1969-09-29 |
| US3679453A (en) | 1972-07-25 |
| NL142503B (en) | 1974-06-17 |
| FR2004683A1 (en) | 1969-11-28 |
| DE1914935A1 (en) | 1969-10-02 |
| DE1914935B2 (en) | 1971-10-07 |
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| GB1265901A (en) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |