Image heating apparatus
AssigneeCanon Kabushiki Kaisha
InventorKazunari Hatazaki
Life of this patent
Estimating the term…
Abstract
An image heating apparatus includes a rotatable member and an endless belt configured to form a nip portion cooperatively with the rotatable member. A pressing pad is provided in an inside of the endless belt and configured to press the endless belt toward the rotatable member to form the nip portion. The pressing pad includes a first portion extended from an entrance of the nip portion toward and exit of the nip portion in a sheet conveying direction and a second portion disposed at a region in which the sheet is separated from the rotatable member. The first and second portions are pressed toward the rotatable member independently by a pressing mechanism.
Claims6
An image heating apparatus comprising:
- a rotatable member;
- an endless belt configured to form a nip portion, in which a toner image on a sheet is heated, cooperatively with the rotatable member;
- an pressing pad provided in an inside of the endless belt and configured to press the endless belt toward the rotatable member to form the nip portion, the pressing pad including,
- a first portion extended from an entrance of the nip portion toward and exit of the nip portion in a sheet conveying direction;
- and
- a second portion disposed at a region in which the sheet is separated from the rotatable member, a pressure in the second portion being higher than that in the first portion;
- a pressing mechanism configured to press the first portion and the second portion toward the rotatable member independently.
The image heating apparatus comprising:
- a rotatable member;
- an endless belt configured to form a nip portion, in which a toner image on a sheet is heated, cooperatively with the rotatable member;
- an integrated member provided in an inside of the endless belt and configured to press the endless belt toward the rotatable member to form the nip portion, the pressing pad including,
- a pad member extended from an entrance of the nip portion toward and exit of the nip portion in a sheet conveying direction;
- and
- a separation rotary body positioned downstream of the pad member, configured to be movable with respect to the pad member only in a sheet conveying direction, and rotating by contacting with the endless belt;
- a pressing mechanism configured to press the pad member and the separation rotary bod toward the rotatable member independently.
Dependencies are inferred from the claim text.