Automatic cleaning method for image development apparatus
US4895103A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1988 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Aug 22, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/104
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of cleaning a circulation path of an image developing apparatus using liquid toners. Liquid dispersant is continuously circulated from its supply tank by a pump along lines to a toner applicator then back to the supply tank. Color concentrates containing charge bearing solid pigment particles are selectively injected and mixed with the dispersant by means of pumps or valves to form liquid toner only when developing a latent image is desired. When toner application is completed, the injection of color concentrate into the dispersant is stopped, and the liquid dispersant then automatically rinses the liquid toner out of the circulation path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.