GB797027A - Improvements in electrostatic printing - Google Patents
Improvements in electrostatic printingInfo
- Publication number
- GB797027A GB797027A GB5186/56A GB518656A GB797027A GB 797027 A GB797027 A GB 797027A GB 5186/56 A GB5186/56 A GB 5186/56A GB 518656 A GB518656 A GB 518656A GB 797027 A GB797027 A GB 797027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- supported
- cylinder
- transparent
- developer
- 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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/34—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner
-
- 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
-
- 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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/24—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 whereby at least two steps are performed simultaneously
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Liquid Developers In Electrophotography (AREA)
Abstract
797,027. Electrophotography. GENERAL DYNAMICS CORPORATION. Feb. 20, 1956 [March 7, 1955], No. 5186/56. Class 98(2) [Also in Group XXXV] An electrostatic image is formed and developed simultaneously on a photoconductive layer 16 supported on a translucent conductive layer 14, by contacting successive portions of the photoconductor with a cylinder comprising a semiconductive coating 24 on a conductive core 22, which cylinder is supported so that it is insulated from earth to rotate in a liquid developer composition 28 comprising an electrostatic attractable powder suspended in an insulating liquid, while the layer 16 is exposed to a light image through the transparent layer 14 and while a potential is applied between the conductive layer 14 and the conductive core 22, the container 26 for the developer composition being earthed. The layers 14 and 16 may be supported on a transparent cylinder 12 as shown in Fig. 1, and exposed by a lamp 46 through a negative 18, or they may be supported on a flat transparent plate which is moved across the semiconductor cylinder by means of rollers. The developer compotions may comprise carbon suspended in kerosene, hydrocarbons or chlorinated hydrocarbons. The conductive layer 14 may be formed by evaporating gold with bismuth or tin oxide on to the transparent support 12. Semiconductive layer 24 may be of "conducting" rubber. The developer image may be transferred to a sheet 42 and the surface 16 cleaned at 44. Specifications 755,486 and 796,024 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US797027XA | 1955-03-07 | 1955-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB797027A true GB797027A (en) | 1958-06-25 |
Family
ID=22152240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5186/56A Expired GB797027A (en) | 1955-03-07 | 1956-02-20 | Improvements in electrostatic printing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB797027A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941593A (en) * | 1971-09-12 | 1976-03-02 | William Alan Stewart Butement | Electro-photographic method and element |
US4168975A (en) * | 1976-06-17 | 1979-09-25 | Repco Limited | Electrophotographic image receiving plates |
EP1127625A2 (en) * | 2000-02-25 | 2001-08-29 | Samsung Electronics Co., Ltd. | Sheet coating apparatus |
-
1956
- 1956-02-20 GB GB5186/56A patent/GB797027A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941593A (en) * | 1971-09-12 | 1976-03-02 | William Alan Stewart Butement | Electro-photographic method and element |
US4168975A (en) * | 1976-06-17 | 1979-09-25 | Repco Limited | Electrophotographic image receiving plates |
EP1127625A2 (en) * | 2000-02-25 | 2001-08-29 | Samsung Electronics Co., Ltd. | Sheet coating apparatus |
EP1127625A3 (en) * | 2000-02-25 | 2004-07-28 | Samsung Electronics Co., Ltd. | Sheet coating apparatus |
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