抄録
This paper deals with measurement of real contact area between a rubber roller and a glass plate using a laser microscope having a wide field of view. It is very important to clarify the tribological properties of the rubber rollers for precise paper-feeding in printers and copiers. A real contact area ratio greatly affects local micro-slips. A total amount of real contact area determines a critical friction torque between the roller and the glass plate. The effect of paper debris attached on the roller on the critical friction torque is examined. The paper debris on the roller decreases the amount of real contact area and the critical friction torque.
