ドットプリンタの印字機構の振動特性

抄録

With rapid development of computer facilities, the peripheral equipments, printer, disc drive, display and so on are unavoidable to be used under severe circumstances such as temperature changes, electrical noises, and mechanical shocks. In particular cases where airplanes and automobiles are equipped with these equipments, influence of mechanical vibration and noise on the performances are inevitable. One of typical output equipments supposed to be used in severe environments is a printer. The vibrations are thought to consist mainly of external vibrations and internal ones caused by driving the motor and gears. By these vibrations, disordered figures or letters and shaded color are apt to be printed out in their circumstances. This paper aims to obtain a clue for optimum design of its anti-vibration structure by analyzing the vibration characteristics of printer head mechanism, with modal analyses, finite element method (FEM), and motion excitation tests. Basesd on the results obtained, some measures are proposed to keep high quality of printing.