Imaging system
Abstract
Abstract An improved method for removing residual toner images from an electrostatic recording surface adapted for continuous automatic operation comprising charging residual toner images supported on an electrostatic recording surface to a first polarity, then cascading a two-component developer material including carrier beads and toner particles in triboelectric relationship over the residual toner images and recording surface and concurrently biasing said residual toner images with a potential at a second polarity when commencing a pass through the development zone, whereby the residual toner images are released from said recording surface and intermixed with said developer material for development of said recording surface while in the development zone.
Inventors
- 👤 John P Caldwell
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
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