Pretransfer toner treatment in an electrostatographic printer
US7711296B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2006 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Mar 4, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/169
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for reducing lead edge (LE) smearing in an electrostatographic machine is provided. The system comprises a pretransfer corotron positioned between a developing station and a transfer station in an electrostatographic imaging device. The pretransfer corotron is configured to apply a predetermined charge to at least a portion of a developed toner image on a photoreceptive surface. The predetermined charge is greater than a charge applied to the rest of the developed toner image. The system further includes a controller operably associated with the pretransfer corotron. The controller is configured to activate the pretransfer corotron to apply said predetermined charge to the developed toner image at a lead edge region of the developed toner image when leading edge smearing is detected during imaging operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.