Power management and control for a fuser of an electrophotographic imaging device
US9639038B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Dec 31, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system and method for controlling the fuser assembly of an electrophotographic imaging device, including initiating reading line current and line voltage for a plurality of consecutive AC cycles; from the AC cycle readings, identifying heater on cycles in which power is applied to the fuser heater and heater off cycles in which power is not applied to the fuser heater; calculating heater power from the identified heater on cycles and the heater off cycles, the heater power being the power of the fuser heater during a predetermined heater on cycle of the consecutive AC cycles; calculating a fuser heater voltage of the fuser heater during the predetermined heater on cycle based on the voltage readings; calculating a resistance of the fuser heater based on the calculated heater power and the calculated fuser heater voltage; and controlling the fuser assembly based upon the calculated resistance of the fuser heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.