Image heating apparatus comprising halogen heater with two glass-covered heating portions
AssigneeCanon Kabushiki Kaisha
InventorsTakeshi Kozuma, Youichi Chikugo, Hidekazu Tatezawa, Yutaro Tsuno, Rikiya Takemasa
Life of this patent
Estimating the term…
Abstract
An image heating apparatus includes a heating roller, and, a heater unit. The heater unit is provided on an inner side of the heating roller. The heater unit includes a first halogen heater, a second halogen heater, and, a pair of holders. The pair of holders holds the first halogen heater and the second halogen heater such that the pair of holders, the first halogen heater and the second halogen heater are integrally inserted to and extracted from the heating roller.
Claims11
An image heating apparatus configured to heat a toner image borne on a recording material at a nip portion, the image heating apparatus comprising:
- a heating roller configured to rotate;
- and
- a heater unit provided on an inner side of the heating roller, the heater unit configured to be inserted to and extracted from the heating roller along a rotational axis direction of the heating roller;
- wherein the heater unit comprises:
- a first halogen heater unit comprising a first heating portion, a first glass tube configured to cover the first heating portion, a second heating portion, a second glass tube configured to cover the second heating portion, and a pair of first supporting portions configured to support both end portions of the first glass tube and both end portions of the second glass tube;
- a second halogen heater unit comprising a third heating portion, a third glass tube configured to cover the third heating portion, and a pair of second supporting portions configured to support both end portions of the third glass tube;
- and
- a pair of holders to which each of the pair of first supporting portions and the pair of second supporting portions are fitted, and which holds the first halogen heater unit and the second halogen heater unit such that the pair of holders, the first halogen heater unit and the second halogen heater unit are integrally inserted to and extracted from the heating roller.
Dependencies are inferred from the claim text.