The Paper's Abstract of The 3rd
International Conference on Imaging Science and Hardcopy
　

　

Toner Penetration onto the Paper at Fusing
( Invited Paper )

 　
　 　

May 26-29,1998
Chongqing China

Shyshung Steve Hwang

Wilson Center for Research & Technology, 147-11B Xerox Corporation,
Webster, NY, USA E-mail: Steve_Hwang@wb.xerox,com

　 Abstract:
　      This paper establishes a three dimensional (3D) model for studying toner penetration onto the paper macroscopically. In the roll fusing process, toner melts are fused onto the paper under the influence of heat and pressure exerted by the nip forming rollers. The image fix level is a function of toner penetration, toner adhesion to the paper, and toner cohesiveness. The degree of toner penetration depends on process conditions, toner rheological properties and paper properties. The model considers a toner melt layer sandwiched between a smooth fuser roll and a porous paper under heat and pressure. Toner penetration and their thickness variation within the nip are studied under various conditions of toner viscosity, paper permeability, applied pressure  and toner layer thickness. Toner viscosity is a strong function of temperature. Under normal fusing conditions and using plain 4024 paper, toner images just fill the voids at the paper surface. Only the less viscous material can penetrate into the typical xerographic paper. Modeling results compare favorably with the actual image penetration. The model can also be applied to other studies of penetration in porous materials

　

中国复印科学与工程学会
Reprographic Scientists and Engineers Society of China 
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