Patent ID: 7971869

Claim:
A printing media supply device for use in an image forming apparatus, comprising: a printing media supply cassette capable of receiving stacked printing media, said printing media supply cassette comprises: a base plate for receiving stacked printing media, a first elastic member for pushing up one portion of the base plate, and at least one finger mounted on the base plate to hinder movement of the printing media so that the printing media is transferred sheet by sheet; and a pick-up roller adapted to pick up printing media stacked in the printing media supply cassette, the pick-up roller comprising: a pick-up member for picking up the printing media; a first rotation member having a planar shape with an outer edge defining a pick-up area, said outer edge having a recessed portion at a leading edge portion; and a second rotation member having a planar member parallel to said first rotation member and having a recessed portion at a leading edge portion, and a support plate extending from a side surface of the planar member, said support plate having an outwardly facing surface that supports the pick-up member and has a recessed portion at a leading edge portion, wherein the pick-up member surrounds said outwardly facing surface of the support plate, the support plate being radially spaced inwardly from said outer edge of said first rotation member and the outer edge of said second rotation member to define a recessed area to receive the pick-up member, the first and second rotation members being connected to a rotation shaft, the recessed area of the support plate, the recessed area of the first rotation member and the recessed area of the second rotation member define a buffer surface formed only at the leading edge portions where the pick-up member contacts the printing media, the buffer surface being spaced radially inward from an inner surface of the pick-up member and enabling the pick-up member to absorb pressure when the pick-up member contacts the printing media.