Multizone method for xerographic powder development: voltage signal approach
US6070036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1999 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | May 17, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0643
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for developing a latent image recorded on an imaging surface, comprising, a housing defining a chamber storing a supply of developer material; a donor member, spaced from the imaging surface, for transporting developer material on the surface thereof to a region opposed from the imaging surface, said donor member includes an electrode array on the outer surface thereof, said array including a plurality of spaced apart electrodes extending substantial across width of the surface of the donor member; means for loading developer material onto said donor member, a multi-phase voltage source operatively coupled to said electrode array, the phase being shifted with respect to each other such as to create an electrodynamic wave pattern having at a phase velocity for moving developer material to and from a development zone; and an AC voltage source operatively coupled to said electrode array, for applying an AC voltage in said development zone between the donor member and said imaging surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.