Methods for reconditioning used charge blades for electrostatographic cartridges, and the charge blades and cartridges thereby reconditioned
US5802425A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Dec 20, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00987
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The triboelectric harmony of reconditioned electrostatographic cartridges may be reestablished by coating a flexible charge blade with a quantity of dry, particulate electrically conductive material, for example, particulate carbon black or graphite. Preferably, the electrically conductive material is carbon black having an average particle diameter of between about 15 to about 95 nm. The surface-coated charge blade will most preferably exhibit a surface resistivity of less than about 1.times.10.sup.7 .OMEGA./cm (i.e., between 0 to about 1.times.10.sup.7 .OMEGA./cm), more preferably between about 1.times.10.sup.5 to about 7.5.times.10.sup.5 .OMEGA./cm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.