GB1311673A - Methods and apparatus for electrostatic printing or copying - Google Patents
Methods and apparatus for electrostatic printing or copyingInfo
- Publication number
- GB1311673A GB1311673A GB1311673DA GB1311673A GB 1311673 A GB1311673 A GB 1311673A GB 1311673D A GB1311673D A GB 1311673DA GB 1311673 A GB1311673 A GB 1311673A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cells
- ink
- electro
- imaged
- photo
- 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
- G03G17/00—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process
- G03G17/04—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process using photoelectrophoresis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/001—Heliostatic printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/42—Printing without contact between forme and surface to be printed, e.g. by using electrostatic fields
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Methods (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
1311673 Electro-photography MASSON SCOTT THRISSELL ENG Ltd 12 May 1970 [12 March 1969] 12905/69 Heading G2H [Also in Division B6] A gravure printing plate 12 is provided with means to induce electro-phoretic migration of pigment particles 30 in ink 31 in its cells 13, so that the ink in the upper parts of the cells 13, which is transferred to paper 19 in printing, contains either an increased or a depleted content of particles 30. The printing plate may be an imaged one, the density of whose imprint is to be varied, or may be uniformly provided with cells 13 and be imaged electro-photographically by action of light on photo-conductive material in the bases of the cells 13, or on photo-conductive pigment in the ink 31, in either of which cases the light reaches the cells 13 through a transparent base material. The ink 31 may contain two colours of pigment particles 30, with opposed electro-phoretic behaviour, so that a two-colour imprint is formed, and the electrostatic field applied by electrode 16 may be varied at a frequency in excess of 2,000 cycles/second to provide a smooth graduation of colour.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1290569 | 1969-03-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1311673A true GB1311673A (en) | 1973-03-28 |
Family
ID=10013289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1311673D Expired GB1311673A (en) | 1969-03-12 | 1969-03-12 | Methods and apparatus for electrostatic printing or copying |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1311673A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2384629A1 (en) * | 1977-01-19 | 1978-10-20 | Coulter Systems Corp | IMPROVEMENTS IN THE PRINTING OF A REPETITIVE PATTERN |
EP0363932A2 (en) * | 1988-10-14 | 1990-04-18 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Printing forme |
WO1998043905A1 (en) * | 1997-04-02 | 1998-10-08 | Eltex-Elektrostatik Gmbh | Method and device for electrostatic charging |
-
1969
- 1969-03-12 GB GB1311673D patent/GB1311673A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2384629A1 (en) * | 1977-01-19 | 1978-10-20 | Coulter Systems Corp | IMPROVEMENTS IN THE PRINTING OF A REPETITIVE PATTERN |
EP0363932A2 (en) * | 1988-10-14 | 1990-04-18 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Printing forme |
EP0363932A3 (en) * | 1988-10-14 | 1990-11-22 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Printing forme |
WO1998043905A1 (en) * | 1997-04-02 | 1998-10-08 | Eltex-Elektrostatik Gmbh | Method and device for electrostatic charging |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |