US 12,072,651 B2
Heating device, fixing device, and image forming apparatus
Toshiyuki Kabata, Kanagawa (JP); Kota Shiodera, Tokyo (JP); Takayuki Andoh, Kanagawa (JP); Masahiro Samei, Kanagawa (JP); and Hiroshi Yoshinaga, Chiba (JP)
Assigned to RICOH COMPANY, LTD., Tokyo (JP)
Filed by Toshiyuki Kabata, Kanagawa (JP); Kota Shiodera, Tokyo (JP); Takayuki Andoh, Kanagawa (JP); Masahiro Samei, Kanagawa (JP); and Hiroshi Yoshinaga, Chiba (JP)
Filed on Apr. 20, 2023, as Appl. No. 18/136,879.
Claims priority of application No. 2022-076067 (JP), filed on May 2, 2022; and application No. 2022-185661 (JP), filed on Nov. 21, 2022.
Prior Publication US 2023/0350329 A1, Nov. 2, 2023
Int. Cl. G03G 15/20 (2006.01)
CPC G03G 15/2053 (2013.01) 12 Claims
OG exemplary drawing
 
1. A heating device comprising:
a rotator configured to rotate;
a heater configured to heat the rotator; and
a rotator holder configured to hold each lateral end of the rotator in a longitudinal direction of the rotator, the rotator holder adhered with one of silicone oil and silicone grease, that contains siloxanes that are not smaller than a dodecamer and not greater than a heptadecamer and have a concentration not greater than 1,250 ppm,
wherein one of another silicone oil and another silicone grease with a greater concentration than the one of silicone oil and silicone grease is adhered to an inner part of the rotator between the each lateral end of the rotator in the longitudinal direction.