Rotatable cam gear to rotate an alignment member between an alignment position and transport-allowing position

A sheet supplying apparatus, comprising:

• a loading table to accommodate a sheet of a printing medium;
• a pickup member to pick up the sheet from the loading table;
• an alignment member rotatable between an alignment position to block a fore-end of the sheet on the loading table and a transport-allowing position to allow the sheet to be picked up from the loading table by the pickup member and be transported;
• a pivoting shaft to which the alignment member is coupled;
• a cam gear to rotate between first and second rotating positions;
• and
• a lever, coupled to the pivoting shaft and rotatable about a same axis of rotation as the alignment member, to selectively contact the cam gear such that when the cam gear is rotated to the first rotating position, the cam gear interacts with the lever to cause the alignment member to be rotated to the alignment position, and when the cam gear is rotated to the second rotating position, the cam gear is to be spaced apart from the lever to allow the alignment member to be rotated to the transport-allowing position.