GB1293482A - Apparatus for the development of latent electro-photographic colour separated images - Google Patents
Apparatus for the development of latent electro-photographic colour separated imagesInfo
- Publication number
- GB1293482A GB1293482A GB89171A GB89171A GB1293482A GB 1293482 A GB1293482 A GB 1293482A GB 89171 A GB89171 A GB 89171A GB 89171 A GB89171 A GB 89171A GB 1293482 A GB1293482 A GB 1293482A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flap
- receiver
- return
- development
- working position
- 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
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0801—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer for cascading
-
- 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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0105—Details of unit
- G03G15/0126—Details of unit using a solid developer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
1293482 Electro-photography PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 7 Jan 1971 891/71 Heading G2H A plurality of development units form a unitary structure to bring each unit successively into the same working position for multi-colour development involving separate transfer of each developed image. As shown, units 1,2 and 3 are brought successively into working relationship with a photo-conductive drum 7 by a combined rotary and pivoting action about points 4 and 6 respectively, dry toner hopper flap 13 being opened electromagnetically and receiver flap 14 being opened by contact with a stop 16. On removal from the working position, a gravity-operated return flap (11) Fig.2 (not shown) opens to allow toner to return to the hopper compartment from the receiver compartment. In a modification, Fig.3 (not shown, allowing rotation only in the direction shown), the receiver and return flaps are dispensed with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB89171A GB1293482A (en) | 1971-01-07 | 1971-01-07 | Apparatus for the development of latent electro-photographic colour separated images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB89171A GB1293482A (en) | 1971-01-07 | 1971-01-07 | Apparatus for the development of latent electro-photographic colour separated images |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1293482A true GB1293482A (en) | 1972-10-18 |
Family
ID=9712307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB89171A Expired GB1293482A (en) | 1971-01-07 | 1971-01-07 | Apparatus for the development of latent electro-photographic colour separated images |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1293482A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3963341A (en) * | 1974-10-29 | 1976-06-15 | Xerox Corporation | Color electrophotographic printing machine |
US4030445A (en) * | 1975-02-28 | 1977-06-21 | Hitachi, Ltd. | Multicolor developing device |
US4097139A (en) * | 1976-09-30 | 1978-06-27 | Xerox Corporation | Reproducing machine having interchangeable developer housings |
US4593991A (en) * | 1984-05-30 | 1986-06-10 | Canon Kabushiki Kaisha | Color image forming apparatus |
-
1971
- 1971-01-07 GB GB89171A patent/GB1293482A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3963341A (en) * | 1974-10-29 | 1976-06-15 | Xerox Corporation | Color electrophotographic printing machine |
US4030445A (en) * | 1975-02-28 | 1977-06-21 | Hitachi, Ltd. | Multicolor developing device |
US4097139A (en) * | 1976-09-30 | 1978-06-27 | Xerox Corporation | Reproducing machine having interchangeable developer housings |
US4593991A (en) * | 1984-05-30 | 1986-06-10 | Canon Kabushiki Kaisha | Color image forming apparatus |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees | ||
PCNP | Patent ceased through non-payment of renewal fee |