| 摘要 |
<p>A roll fusing apparatus comprising a heated roll structure and a resilient backup roll cooperating with the heated roll structure to form a nip through which toner images as with the toner images contacting the heated fuser roll structure. The heated fuser roll structure comprises a rigid core and an elastomeric outer layer, the outer surface of the rigid core and the inner surface of the elastomeric layer having non-uniform cross sections which are complementary one to the other to thereby provide alternately thick and thin segments or portions of elastomeric material wherein the thick portions provide for a greater capacity of release agent material than the thin portions while the thin portions provide a minimal barrier to heat transfer from within the heated fuser structure to the external surface of the elastomeric layer.</p> |
