Recent advances in the area of facsimile communication have increased transmitting speed significantlyi, One reason for this is the development of fast, economical laser-based scanning systems' I. The design of such a system is very complicated, being dependent upon scanning speed and method, scanning device used, optical layout, facsimile machine geometry, modulation scheme, and cost. This paper describes a computer-aided design rationale for a laser-based galvanometer scanning system. System configuration, design goals, and methodology are presented. Design curves are given which allow for future scanning system design.