Abstract: The fixing device includes a fixing rotator rotatable in a rotation direction and forming a loop, a nip formation pad inside the loop, a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip, a sliding sheet between the nip formation pad and the fixing rotator, and a holder. The sliding sheet covers the nip formation pad and has a nip entrance at an upstream end of the fixing nip in the rotation direction and a face contacting the fixing rotator. The holder holds an upstream end portion of the sliding sheet upstream from the nip formation pad in the rotation direction and includes a holding plate disposed on the face and separated from the nip entrance by 5 mm or more.

Abstract: The fixing device includes a fixing rotator rotatable in a rotation direction and forming a loop, a nip formation pad inside the loop, a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip, a sliding sheet between the nip formation pad and the fixing rotator, and a holder. The sliding sheet covers the nip formation pad and has a nip entrance at an upstream end of the fixing nip in the rotation direction and a face contacting the fixing rotator. The holder holds an upstream end portion of the sliding sheet upstream from the nip formation pad in the rotation direction and includes a holding plate disposed on the face and separated from the nip entrance by 5 mm or more.

Abstract: A fixing device includes a belt, a pad, a pressure rotator, a lubricant supplier, and a collector. The belt forms a loop. The pad is inside the loop of the belt and contacts the belt. The pressure rotator presses the belt against the pad to form a fixing nip between the belt and the pressure rotator. The lubricant supplier supplies lubricant to an inner face of the belt. The collector collects the lubricant. The collector has a first end and a second end. The first end contacts an inner face of one end of the belt in a width direction of the belt. The second end contacts the inner face of another end of the belt opposite to the one end in the width direction.