Paper feeding unit and image forming apparatus having the same

The image forming apparatus according to the present disclosed invention is an image forming apparatus body 10 and includes a paper feeding unit 20 for feeding paper to the interior of the image forming apparatus body 10, and paper feed unit 20 has an image forming and a paper feed cassette 30, which is coupled to the unit body 10, with the paper lifting plate 40 is installed on the paper cassette 30 to load the paper, sheet for the media loaded in the paper lifting plate 40 and a pickup device 50 for feeding, to the pick-up device 50 comprises a control unit capable of varying a sheet feeding force for feeding the media loaded in the paper lifting plate 40. According to the present invention, by controlling the sheet feeding force of the pick-up device 50 it can be smoothly feeding the paper without generating skew (skew). The image forming apparatus, the paper feeding unit, a pick-up apparatus, the lifting apparatus, the feeding force varying