Patent ID: 8346143

Claim:
A fixing device, comprising: a rotatable first nip formation member; a rotatable second nip formation member provided under the first nip formation member to directly contact the first nip formation member; and an oil applier, the oil applier including: an oil pan provided under the second nip formation member to contain oil in which the second nip formation member is partially submerged in oil; an oil receiver to hold the oil pan; and an oil filter provided between the oil pan and the oil receiver to filter oil overflowing the oil pan, the oil filter being formed of a sheet having a width equal to or longer than a width of the second nip formation member in a diametrical direction of the second nip formation member, wherein the oil filter covers a region of an oil surface contained in the oil pan and the oil receiver other than a region of the oil surface of oil in which the second nip formation member is partially submerged.