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US 11,959,039 B2Granted
Heating device configured to limit a temperature rise of a lubricant, fixing device, and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsTakayuki Andoh, Masahiro Samei, Kota Shiodera, Toshiyuki Kabata, Hiroshi Yoshinaga
Life of this patent
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Abstract
A heating device includes a rotating body, a heating source, a rotating body holder, and a lubricant of liquid or semi-solid. The heating source heats the rotating body. The rotating body holder holds both longitudinal ends of the rotating body rotatably. The lubricant of liquid or semi-solid adheres to the rotating body holder. A temperature of the rotating body holder is lower than a generation temperature of fine particles of the lubricant.
Claims20
A heating device, comprising:
- a rotating body extending in a longitudinal direction;
- a heating source configured to heat the rotating body;
- a rotating body holder holding both longitudinal ends of the rotating body rotatably;
- a lubricant of liquid or semi-solid adhering to the rotating body holder. and
- a shield including a shielding portion extending in the longitudinal direction into an interior the rotating body such that, within the interior the rotating body, the shield is between the heating source and the rotating body holder to maintain a temperature of the rotating body holder below a generation temperature of fine particles of the lubricant.
2 more elements
A heating device, comprising:
- a rotating body extending in a longitudinal direction;
- a heating source configured to heat the rotating body;
- a rotating body holder holding both longitudinal ends of the rotating body;
- a lubricant of liquid or semi-solid adhering to the rotating body holder;
- and
- a shield including a shielding portion extending in the longitudinal direction into an interior the rotating body such that, within the interior the rotating body, the shield is between the heating source and the rotating body holder to maintain, a temperature of the rotating body holder during a continuous printing for 10 minutes to 210° C. or less.
3 more elements
Dependencies are inferred from the claim text.