Paper Feed Control for Drum-type X-Y Plotter

Abstract

Slip between paper and drum leads to drawing quality deterioration in a drum-type x-y plotter. From this view point, this paper presents a formulation for a paper feed control system consisting of a vacuum column and paper feed motors, the analytical paper position and paper tension variation in the vacuum column, and the comparison of numerical results with experimental data. It particularly explains that paper friction force in the vacuum column seriously influences the dynamic characteristics of the system and finally describes the critical velocity in thigh speed x-y plotters.