Patent ID: 7594650

Claim:
A paper feeding and sheet separating differential device, adapt to feed a paper sequentially and respectively, comprising: a rotating shaft; an insertion pin, passed through and installed on said rotating shaft; a first roller, installed on one end of said rotating shaft and comprising a first outer frame and a first raised mass disposed on an inner side thereof; and a second roller, put around said rotating shaft and comprising: a second outer frame; an accepting hole, disposed inside said second outer frame and used for engaging with said rotating shaft; at least one groove, extended axially from said accepting hole to said second outer frame and used for receiving said insertion pin; and a second raised mass, disposed on a circumference of said accepting hole and used for propping against said first raised mass; wherein said second roller is allowed to turn with said rotating shaft, and said second raised mass is driven to move in said first outer frame and props against said first raised mass to cause said first roller to turn to drive said paper to move.