US 12,271,133 B2
Fixing apparatus and image forming apparatus
Takao Kume, Kanagawa (JP); Akimichi Suzuki, Kanagawa (JP); Satoshi Nishida, Kanagawa (JP); Kohei Okayasu, Shizuoka (JP); and Takanori Mitani, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Dec. 18, 2023, as Appl. No. 18/544,097.
Claims priority of application No. 2023-012440 (JP), filed on Jan. 31, 2023.
Prior Publication US 2024/0255875 A1, Aug. 1, 2024
Int. Cl. G03G 15/20 (2006.01); G03G 15/00 (2006.01); G03G 21/06 (2006.01); G03G 21/16 (2006.01)
CPC G03G 15/2053 (2013.01) [G03G 15/2017 (2013.01); G03G 15/2064 (2013.01); G03G 15/657 (2013.01); G03G 21/06 (2013.01); G03G 21/1685 (2013.01); G03G 2215/20 (2013.01); G03G 2215/2003 (2013.01); G03G 2221/1639 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A fixing apparatus comprising:
a first rotating member;
a heater that is elongate and provided with a heating element and a substrate with the heating element installed on the substrate, and disposed in a space inside the first rotating member;
a second rotating member, wherein the first rotating member is pinched by the heater and the second rotating member, and an image formed on a recording material is heated at a nip portion, via the first rotating member, so that the image is fixed to the recording material;
a first contact member configured to come into contact with the first rotating member to ground the first rotating member; and
a second contact member configured to come into contact with the second rotating member to ground the second rotating member,
wherein, in a case where a direction of a longer side on a surface of the substrate where the heating element is disposed is a longitudinal direction and a direction perpendicularly intersecting with the longitudinal direction on the surface of the substrate is a widthwise direction, the first contact member is disposed in a region outside a region where a recording material with a maximum size conveyed to the nip portion passes through the nip portion on one end side in the longitudinal direction on an outer circumferential surface of the first rotating member, and the second contact member is disposed in the region outside the region where the recording material with the maximum size conveyed to the nip portion passes through the nip portion on an other end side in the longitudinal direction on an outer circumferential surface of the second rotating member.