Image-forming apparatus and image-forming process
US7642024B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2006 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Apr 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0815
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image-forming apparatus comprises: an image carrier; a charging unit; a latent image forming unit; a developing unit that uses a toner maintaining a non-color-developing state when provided with coloring information through exposure to light; a coloring information providing unit that provides the toner image with coloring information by exposing the toner image to light having a predetermined wavelength determined depending on the color not to be developed based on color component information of image data; a transfer unit; a fixing unit; a color-developing unit that develops a color of the toner image provided with the coloring information; and a control unit that controls the coloring information providing unit to expose a background region on the image carrier to light having a predetermined wavelength for preventing color development of the toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.