In the printing market, there has been growing demand for xerographic digital printing with excellent print-on-demand capability. At the same time, customers also require stable image quality equivalent to that of offset printing. In xerography, a photoreceptor is essential in the printing process, and uneven wear and degradation of its surface adversely affect stable image quality. Therefore, Fuji Xerox has designed strong and chemically stable materials for the overcoat layer (OCL) at the molecular level. This OCL technology is incorporated in photoreceptors available for the production market, thereby achieving fine wear resistance, stable electrical characteristics, and sustainable chemical stability for long-term use.
The following describes our OCL technology used for the overcoat photoreceptor.
As a result, we have successfully reduced the depth of wear to about one-fifth of that in our conventional products and minimized uneven wear to provide stable image quality approaching that of offset printing.
Fig. 1: Sectional View of the Overcoat Layer