Patent ID: 8909118
Filing Date: 2014-12-09
Classification: G03G

Abstract:
1. A fusing device comprising: at least one heat source to generate heat; a fusing belt disposed near the heat source; a rotation unit contacting an outer circumference of the fusing belt; at least one pressurization unit to press toward the rotation unit such that a fusing nip is formed between the fusing belt and the rotation unit; a heat conductor contacting an inner surface of the fusing belt to conduct heat to the fusing nip; and an intermediate unit disposed between the pressurization unit and the heat conductor to prevent transmission of heat from the heat conductor to the pressurization unit, wherein a difference in height CRN_M between a central part of the intermediate unit and each of both ends of the intermediate unit satisfies the following equation: wherein δ δ CRN_R represents R