Copier machines
US4745437A · kind A · utility
19Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1987 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jul 8, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The copier machine of the present invention comprises a second charger having a grid and is capable of executing a mode wherein a toner is deposited onto the latent image exclusive of the outline portion thereof to visualize. When this mode is designated, the grid is applied with the voltage which is lower than the surface potential at the image portion of the latent image and higher than the surface potential at the non-image portion of the latent image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.