| 发明名称 |
Fuser Assembly Having Extended Nip Width |
| 摘要 |
A fuser assembly, including a fuser roller receiving heat from a heating element and including a metal core, a heat insulation elastic layer disposed around the metal core, and a top release layer disposed over the heat insulation elastic layer. A backup belt assembly, coupled to the fuser roller, includes at least two nip forming rollers contacting an inner surface of an endless belt to form an elongated fusing nip along the fuser roller. A first nip forming roller engages the fuser roller via the endless belt at an entrance of the elongated fusing nip and a second nip forming roller engages the fuser roller via the endless belt at an exit of the elongated fusing nip, wherein a product of a Young's Modulus of the top release layer and a thickness thereof is between about 2,000 and about 20,000 N/m. |
| 申请公布号 |
US2016209790(A1) |
申请公布日期 |
2016.07.21 |
| 申请号 |
US201615081097 |
申请日期 |
2016.03.25 |
| 申请人 |
Lexmark International, Inc. |
发明人 |
Campbell Michael Clark;McDavid Charles Scott;Wu Fangsheng |
| 分类号 |
G03G15/20 |
主分类号 |
G03G15/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A fuser assembly for an electrophotographic imaging device, comprising:
a heating element; a fuser roller receiving heat from the heating element, the fuser roller including a metal core, a heat insulation elastic layer disposed around the metal core, and a top release layer disposed over the heat insulation elastic layer; and a backup belt assembly coupled to the fuser roller, comprising
an endless belt;a pair of nip forming rollers positioned internally of the endless belt for supporting movement of the endless belt in an endless path, the pair of nip forming rollers contacting an inner surface of the endless belt and positioned relative to the fuser roller to provide a pressing force to a section of an outer surface of the fuser roller adjacent the endless belt so as to form an elongated fusing nip along the section, wherein a first roller of the pair of nip forming rollers engages the fuser roller via the endless belt at an entrance of the elongated fusing nip and a second roller of the pair of nip forming rollers engages the fuser roller via the endless belt at an exit of the elongated fusing nip,wherein the heat insulation elastic layer has a Poisson's Ratio between about 0.36 and about 0.40. |
| 地址 |
Lexington KY US |
