Ceramic rollers
 A fuser for fixing particulate imaging material to a receiver sheet, includes two rollers which engage each other at a fixing nip, wherein pressure is used in fixing the particulate imaging material to the receiver sheet; and at least one of the fusing rollers having a surface formed from zirconia ceramic or its composites which has a hardness greater than 12 GPa and toughness greater than 6 MPa.sqroot.mm. 
Eastman Kodak Company
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Dilip K. Tonya D. Jiann-Hsing
Chatterjee Binga Chen