GB977457A - Apparatus for developing electrostatic images - Google Patents
Apparatus for developing electrostatic imagesInfo
- Publication number
- GB977457A GB977457A GB44512/61A GB4451261A GB977457A GB 977457 A GB977457 A GB 977457A GB 44512/61 A GB44512/61 A GB 44512/61A GB 4451261 A GB4451261 A GB 4451261A GB 977457 A GB977457 A GB 977457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- developer
- container
- contact
- dec
- 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
- 239000011148 porous material Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 229920000742 Cotton Polymers 0.000 abstract 1
- 239000004677 Nylon Substances 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
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
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cleaning In Electrography (AREA)
- Photographic Developing Apparatuses (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
977,457. Developing electrophotographic images. RADIO CORPORATION OF AMERICA. Dec. 12, 1961 [Dec. 22, 1960], No. 44512/61. Drawings to Specification. Heading G2H. Apparatus for developing electrostatic images comprises a container containing a supply of finely-divided developer particles, at least a portion of said container comprising porous material and means for removing the container and the image-bearing surface relative to each so that the said portion of the container is in contact and the image-bearing surface, the pores in said material being of sufficient size to allow the developer particle to be drawn through. Preferably the porous material is flexible and specified materials are cotton cloth and nylon. The developer apparatus may be moved over the exposed xerographic plate or the exposed plate may be moved by means of rollers under the developer apparatus. Means may be provided for stretching the porous plate and the contact pressure between the plate and the developer may be increased by placing a roller under the plate at the point of contact.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7756160A | 1960-12-22 | 1960-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB977457A true GB977457A (en) | 1964-12-09 |
Family
ID=22138789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB44512/61A Expired GB977457A (en) | 1960-12-22 | 1961-12-12 | Apparatus for developing electrostatic images |
Country Status (4)
Country | Link |
---|---|
US (1) | US3124482A (en) |
CH (1) | CH403808A (en) |
DE (1) | DE1162691B (en) |
GB (1) | GB977457A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3206600A (en) * | 1963-05-21 | 1965-09-14 | Keuffel & Esser Co | Image-formation on electro-photographic material |
BE663925A (en) * | 1964-09-25 | |||
US3332344A (en) * | 1965-10-11 | 1967-07-25 | Unimark Corp | Powder feed mechanism and electrostatic imprinting device |
US3352234A (en) * | 1966-09-26 | 1967-11-14 | Unimark Corp | Electrostatic printer with powder feed structure inside stencil drum |
US3891434A (en) * | 1972-12-08 | 1975-06-24 | Herbert Taege | Porous material in a liquid development method |
US4069791A (en) * | 1976-10-01 | 1978-01-24 | E. I. Du Pont De Nemours And Company | Automatic toning device |
US4414916A (en) * | 1981-05-20 | 1983-11-15 | E. I. Du Pont De Nemours & Co. | Automatic toning apparatus having a vertically reciprocating hopper |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1784912A (en) * | 1927-03-31 | 1930-12-16 | Beatrice P Scott | Stenciling |
US1800692A (en) * | 1929-05-03 | 1931-04-14 | Leonard D Mahan | Bluing and dyeing device |
US2210470A (en) * | 1938-11-29 | 1940-08-06 | Sterling Mfg Company | Powder depositor |
US2538864A (en) * | 1947-07-26 | 1951-01-23 | Max J Doppelt | Inking pad for stencil duplicating machines |
US2531245A (en) * | 1947-02-04 | 1950-11-21 | Stokes Machine Co | Sifting feeder for powder compressing machines |
US2767886A (en) * | 1955-03-25 | 1956-10-23 | Lynn E Jenkins | Wheel barrow |
US2904000A (en) * | 1957-05-15 | 1959-09-15 | Century Geophysical Corp | Magnetic-brush developer |
US2974632A (en) * | 1958-04-23 | 1961-03-14 | Century Geophysical Corp | Apparatus for developing electrostatic image |
US3011473A (en) * | 1958-05-01 | 1961-12-05 | Xerox Corp | Xerographic apparatus |
-
0
- US US3124482D patent/US3124482A/en not_active Expired - Lifetime
-
1961
- 1961-12-11 DE DER31667A patent/DE1162691B/en active Pending
- 1961-12-12 GB GB44512/61A patent/GB977457A/en not_active Expired
- 1961-12-18 CH CH1466861A patent/CH403808A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE1162691B (en) | 1964-02-06 |
CH403808A (en) | 1965-12-15 |
US3124482A (en) | 1964-03-10 |
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