Electrostatic target recalculation in a xerographic imaging apparatus
US5138378A · kind A · utility
10Cited by
38References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 5, 1991 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Sep 5, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/011
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Recalculation of electrostatic target values in a tri-level imaging apparatus are utilized to extend the useful life of the photoreceptor (P/R). The increase in residual voltage due to P/R aging which would normally necessitate P/R disposal is obviated by resetting the target voltage for the full ROS exposure when it reaches its exposure limit with current P/R conditions. All contrast voltage targets are then recalculated based on this new target. The new targets are calculated based on current capability of the overall system and the latitude is based on voltage instead of exposure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.