Back to results
US 2019/0101852 A1Published application
Fixing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHiroki Eguchi, Shinji Hashiguchi, Yasuhisa Matsumoto, Ryo Suzuki
Life of this patent
Estimating the term…
Abstract
In a warm-up period of a fixing apparatus of the present disclosure, a control unit supplies first electric power to a heater and thereafter supplies second electric power larger than the first electric power to the heater. The timing of starting to supply the second electric power is determined according to the degree of an increase in temperature sensed by a temperature sensing member after a driving signal is transmitted to a driving source.
Claims5
A fixing apparatus comprising:
- a rotatable tubular film;
- a heater in contact with part of an inner surface of the film in a rotational direction of the film;
- a temperature sensing member configured to sense a temperature of the inner surface of the film at a position different from a position of the heater in the rotational direction of the film;
- a driving source configured to generate a driving force for rotating the film;
- and
- a control unit configured to control a driving signal to be transmitted to the driving source and electric power to be supplied to the heater,
- wherein the fixing apparatus fixes an image formed on a printing material to the printing material using heat of the heater via the film,
- wherein, in a warm-up period of the fixing apparatus, the control unit supplies first electric power to the heater and thereafter supplies second electric power larger than the first electric power to the heater, and
- wherein a timing of starting to supply the second electric power is determined according to a degree of an increase in temperature sensed by the temperature sensing member after the driving signal is transmitted to the driving source.
6 more elements
Dependencies are inferred from the claim text.