Maintaining precise electrostatic control using two ESVs
US5285241A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1982 |
| Grant date | Feb 8, 1994 |
| Priority date | — |
| Expiry date | Dec 7, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Erroneous voltage readings of Electrostatic Voltmeters (ESVs), which have become contaminated by charged particles (i.e. toner) from developer housings used for developing latent images on a photoreceptor surface, are negated by adjusting the readings of the ESVs to compensate for the contamination of the ESVs. Additionally, The developer housing biases are adjusted by an amount equal to the difference between the voltages measured by the ESVs thereby insuring proper development and cleaning fields during development.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.