Abstract: A sheet feeding apparatus for an image forming apparatus comprises a carriage with which an ink-cartridge is mounted and which is reciprocated to print an image includes: a printing stroke section in which the carriage is reciprocated to print an image; a feeding stroke section which is extended to one side of the printing stroke section and into which the carriage is moved whenever it is necessary to feed a new sheet; a feeding power converting unit which is disposed in a passage of the carriage in the feeding stroke section and is rotated by being in contact with the carriage; a crankshaft which is rotated in forward and reverse rotational directions corresponding to the rotational directions of the feeding power converting unit; a paper loader one end which is rotatably disposed with respect to a hinge shaft which is apart from and faced with the crankshaft, and having another end which is a free end; and a sheet feeding unit which is provided in at least two parts of the crankshaft and which raises the fr