GB1309470A - Electrophotographic process - Google Patents
Electrophotographic processInfo
- Publication number
- GB1309470A GB1309470A GB1309470DA GB1309470A GB 1309470 A GB1309470 A GB 1309470A GB 1309470D A GB1309470D A GB 1309470DA GB 1309470 A GB1309470 A GB 1309470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- complementary
- colour
- toner
- areas
- developed
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 230000000295 complement effect Effects 0.000 abstract 5
- 239000000975 dye Substances 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 2
- 239000003086 colorant Substances 0.000 abstract 1
- 238000011161 development Methods 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/12—Recording members for multicolour processes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G13/00—Electrographic processes using a charge pattern
- G03G13/01—Electrographic processes using a charge pattern for multicoloured copies
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/09—Sensitisors or activators, e.g. dyestuffs
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/09—Colouring agents for toner particles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
- Color Electrophotography (AREA)
- Liquid Developers In Electrophotography (AREA)
Abstract
1309470 Electro-photography ILFORD Ltd 23 June 1971 [17 July 1970] 34876/70 Heading G2H A charged photo-conductive member having red, green and blue light-sensitive mosaic areas is imagewise exposed to a multi-colour negative (or original) and the resulting charge image (or complementary areas) developed with a pansensitizer, thereby producing white areas which do not hold a charge on further exposure to any primary colour. The member is then recharged, uniformly exposed to one complementary colour, developed with toner of the complementary colour, and the process repeated twice for the other complementary colours, the conditions being such that one complementary colour toner does not deposit on another. The pan-sensitizer may be panchromatically dyed photo-conductive particles or dye particles consisting of a single panchromatic dye or mixture of monochromatic dyes. The developments may be with liquid-suspended toner. Fixing may be effected by heat or solvent vapour treatment of image resin or by presence of filmforming polymer in developer liquid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3487670 | 1970-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1309470A true GB1309470A (en) | 1973-03-14 |
Family
ID=10371015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1309470D Expired GB1309470A (en) | 1970-07-17 | 1970-07-17 | Electrophotographic process |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE770128A (en) |
| CH (1) | CH545495A (en) |
| DE (1) | DE2135215A1 (en) |
| FR (1) | FR2101789A5 (en) |
| GB (1) | GB1309470A (en) |
| NL (1) | NL7109870A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2180076A (en) * | 1985-08-23 | 1987-03-18 | Konishiroku Photo Ind | Multicolor image forming apparatus |
-
1970
- 1970-07-17 GB GB1309470D patent/GB1309470A/en not_active Expired
-
1971
- 1971-07-14 DE DE19712135215 patent/DE2135215A1/en active Pending
- 1971-07-16 FR FR7126059A patent/FR2101789A5/fr not_active Expired
- 1971-07-16 NL NL7109870A patent/NL7109870A/xx unknown
- 1971-07-16 BE BE770128A patent/BE770128A/en unknown
- 1971-07-19 CH CH1058271A patent/CH545495A/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2180076A (en) * | 1985-08-23 | 1987-03-18 | Konishiroku Photo Ind | Multicolor image forming apparatus |
| GB2180076B (en) * | 1985-08-23 | 1989-08-16 | Konishiroku Photo Ind | Image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CH545495A (en) | 1973-12-15 |
| AU3118971A (en) | 1973-01-18 |
| NL7109870A (en) | 1972-01-19 |
| BE770128A (en) | 1972-01-17 |
| DE2135215A1 (en) | 1972-01-20 |
| FR2101789A5 (en) | 1972-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |