Fixing apparatus and image forming apparatus

Details Fixing apparatus and image forming apparatus Fixing apparatus and image forming apparatus

2006-06-06

2006-06-06

Grainger, Quana (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

Reexamination Certificate

active

07058331

ABSTRACT:
An warming-up operation is performed by driving the first coil and the second coil in accordance in an operating mode already stored, until the temperatures T1and T2detected by the first and second temperature sensors, respectively, reach preset value Ts. A temperature rise ΔT1per unit time of the temperature T1detected by the first temperature sensor during the warming-up operation is determined. Also, temperature rise ΔT2per unit time of the temperature T2detected by the second temperature sensor during the warming-up operation is determined. The operating mode is updated to such an operating mode that the temperature rises ΔT1and ΔT2determined by the second control section become equal to each other.

REFERENCES:
patent: 6615003 (2003-09-01), Nakayama
patent: 6763206 (2004-07-01), Kinouchi et al.
patent: 2003/0235423 (2003-12-01), Ota
patent: 2004/0126127 (2004-07-01), Fujimori et al.
patent: 2003-215954 (2003-07-01), None

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