PICKUP ROLLER LIFTING AND LOWERING MECHANISM IN PAPER FEEDING UNIT AND IMAGE FORMING APPARATUS INCLUDING THE PICKUP ROLLER LIFTING AND LOWERING MECHANISM

摘要

A pressing projection of a paper feeding cassette presses a push-back mechanism to thereby release urging of a cam gear in a direction opposite to a direction of the paper feeding cassette. The cam gear moves in the direction of the paper feeding cassette. A cam of the cam gear rotates a rotation lever. The rotation lever rotates a pickup roller lifting and lowering shaft. The pickup roller lifting and lowering shaft lowers a pickup roller.