Method and apparatus for improving a multi-color electrophotographic image
US4660503A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1986 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Mar 10, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improvement in the method and apparatus for producing a multi-color electrophotographic image wherein an electrophotographic medium is mounted on a carrier therefor and is translated over a predetermined path so that the medium is first charged, then exposed to a first light-borne image and then toned. Thus, the unexposed portions of the image bearing charged region of the medium are toned, preferably by a liquid toner, to produce a first color visible image. The carrier is then returned to the first position to repeat the foregoing steps to charge the medium and to expose it to a second light-borne image and to tone the second image with a second toning element to produce a second color visible image. The improvement comprises the step of brushing the surface of the first toned image with a soft fibrous brush member after the first toning step and prior to the second charging step to remove material from the untoned portion of the medium without significantly altering the toned image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.