Abstract
This paper discusses dynamic frictional forces of the rubber roller for the paper feed mechanism which handles copy papers, bills and so on. The measurement of frictional forces between rotating rubber rollers and a paper under the condition of practical paper feed mechanism demonstrates that the frictional forces strongly depends on the feed velocity and the temperature. Therefore, the new feed mechanism, called GRR type mechanism which does not based on the difference of the frictional forces are proposed.
