Patent ID: 7753363

Claim:
A paper feeding device, comprising: a cover; a base having a paper loading base at the front portion for loading papers, the cover covering the base, and a paper transporting passage being formed between the cover and a back portion of the base; a pickup roller assembly having two side walls, the pickup roller assembly picking up the paper and then transferring the paper into the paper transporting passage of the paper feeding device; and at least one paper blocking unit placed beside the pickup roller assembly, the paper blocking unit having a paper blocking element and a projection projecting from the upper portion of the side wall of the pickup roller assembly, the paper blocking element having a connecting portion, a pivot projecting outward from the two opposite sides of the connecting portion and rotatablely connecting the cover, a connecting arm extending upwards from the outer end of the pivot, a blocking portion projecting outwards from the outer side of the top end of the connecting arm, a passage being formed between the blocking portion and the connecting arm, a paper blocking arm extending downwards from the connecting portion, wherein two opposite sides of the inner surface of the cover extends a pair of retaining boards respectively, the middle portion of the front edge of the retaining board is cut inwards to form a L-shaped retaining ditch, the end of the retaining ditch extends to the lower portion of the retaining board and is arc-shaped, the connecting portion of the paper blocking element is located between the two retaining boards at the same side, the pivot is clipped in the retaining ditch, the bottom of the pivot contacts with the end of the retaining ditch, and the paper blocking element is rotatablely around the pivot in the retaining ditch.