专利类型:
相变材料专利导航
公开(公告)号:
US6072156A
申请日:
1999-08-17
申请局:
US
摘要:
An image fixing apparatus includes such an image fixing roller for thermally fixing images on an image receiving material that includes (a) a core roller member; and (b) an exothermic phase transition layer provided on the core roller member. The exothermic phase transition layer includes an exothermic phase transition material capable of performing reversible phase transition from an amorphous state to a crystalline state and vice versa, and crystallizing at a crystallization temperature which is lower than a predetermined image fixing temperature, with liberation of crystallization heat therefrom, and the exothermic phase transition material having a melting point higher than the image fixing temperature, thereby additionally increasing the temperature elevation rate before the temperature of the outer peripheral surface of the image fixing roller reaches the image fixing temperature to shorten the warm up time of the image fixing roller.
原始专利权人:
RICOH KK
当前专利权人:
Ricoh Co Ltd