Patent ID: 8104886

Claim:
An image forming apparatus, comprising: a printing medium supplier to supply a printing medium having a predetermined length; a selection guide to selectively guide the printing medium from the printing medium supplier to one of a first supplying path of a first image forming unit and a second supplying path of a second image forming unit; a first feed roller disposed between the selection guide and the printing medium supplier to move the printing medium from the printing medium supplier to the selection guide; and a second feed roller disposed between the selection guide and the first image forming unit to transfer the printing medium guided along the first supplying path to the first image forming unit, wherein a distance from the first feed roller to the second feed roller is shorter than the predetermined length of the printing medium, and the selection guide unit is a moveable guide unit having a common branch and a pair of sub-branches, and as the guide unit moves in a first direction, the common branch blocks the second supplying path to feed the printing medium toward the first supplying path, and as the selection guide moves in a second direction, the common branch blocks the first supplying path to feed the printing medium toward the second supplying path.