Microprocessor controlled power supply for xerographic fusing apparatus
Abstract
Abstract In a xerographic machine having control apparatus for regulating the temperature of a toner fusing device, said control apparatus comprising: a toner fusing device having electrical heater means for elevating the temperature of at least a portion of said fusing device; first means responsive to the temperature of said fusing device for providing an electrical manifestation indicative of the temperature of said fusing device; a controllable source of electrical energy for providing a controllable number of increments of electrical energy per unit of elapsed time to said heater means of said fusing device; and microprocessor means interconnecting said first means and said controllable source of electrical energy, whereby said microprocessor means in response to the electrical manifestation indicative of the temperature of said fusing device controls the number of increments of electrical energy provided to said heater means during each unit of elapsed time.
Inventors
- 👤 Larry M. Ernst
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-06 | 1985-01-05 | 1985-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-06 | 1989-01-05 | 1989-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-06 | 1993-01-05 | 1993-07-07 | $7700.00 | Window Closed / Lapsed |