US 12,461,473 B2
Heating device, fixing device, and image forming apparatus
Toshiyuki Kabata, Kanagawa (JP); Takayuki Andoh, Kanagawa (JP); Masahiro Samei, Osaka (JP); Kota Shiodera, Tokyo (JP); Hiroshi Yoshinaga, Chiba (JP); Tomoyuki Nishikawa, Saitama (JP); Yuusuke Furuichi, Kanagawa (JP); Hiroyuki Shimada, Tokyo (JP); and Arinobu Yoshiura, Kanagawa (JP)
Assigned to RICOH COMPANY, LTD., Tokyo (JP)
Filed by Toshiyuki Kabata, Kanagawa (JP); Takayuki Andoh, Kanagawa (JP); Masahiro Samei, Osaka (JP); Kota Shiodera, Tokyo (JP); Hiroshi Yoshinaga, Chiba (JP); Tomoyuki Nishikawa, Saitama (JP); Yuusuke Furuichi, Kanagawa (JP); Hiroyuki Shimada, Tokyo (JP); and Arinobu Yoshiura, Kanagawa (JP)
Filed on Mar. 13, 2024, as Appl. No. 18/603,301.
Claims priority of application No. 2023-046734 (JP), filed on Mar. 23, 2023.
Prior Publication US 2024/0319640 A1, Sep. 26, 2024
Int. Cl. G03G 15/20 (2006.01)
CPC G03G 15/2053 (2013.01) [G03G 15/2039 (2013.01); G03G 15/2064 (2013.01); G03G 2215/2025 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heating device, comprising:
a rotator having an internal space inside a loop of the rotator;
a heater to heat the rotator;
lubricant applied to an inner circumferential surface of the rotator;
a rotator support to support an end of the rotator in a longitudinal direction of the rotator, the rotator support having a first opening:
communicating with the internal space of the rotator;
penetrating through the rotator support; and
extending in the longitudinal direction; and
a cover outside of the first opening and covering the first opening, the cover including:
a face facing the first opening; and
a second opening communicating with the internal space of the rotator and an exterior of the cover, wherein
the cover maintains a temperature of the face of the cover at 40° C. or higher and 130° C. or lower.