Electric heating – Heating devices – Combined with diverse-type art device
Reexamination Certificate
2006-09-19
2006-09-19
Pelham, Joseph (Department: 3742)
Electric heating
Heating devices
Combined with diverse-type art device
C399S069000, C219S492000, C219S494000
Reexamination Certificate
active
07109440
ABSTRACT:
A fusing system for use in an image forming apparatus has a fusing temperature control unit having a controller which controls the surface temperature ‘T’ of the fusing roller by detecting the surface temperature ‘T’ in accordance with a predetermined temperature control period ‘t0’; comparing the surface temperature ‘T’ with a preset target temperature ‘Tt’; turning on and off the heater in accordance with a maximum power supply time ‘Max ON-time’ and a minimum power cutoff time ‘Min OFF-time’ when the surface temperature ‘T’ is lower than the target temperature ‘Tt’; and turning on and off the heater in accordance with a preset minimum power supply time ‘Min ON-time’ when the surface temperature ‘T’ is higher than the target temperature ‘Tt’.
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Pelham Joseph
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
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