A driving apparatus includes an endless belt supported by a drive pulley configured to be driven by a motor and an idler pulley, and a moving member configured to be coupled to the endless belt and moved by driving the drive pulley by the motor, wherein a first limit value of electric power to be supplied to the motor when the moving member is moved in a first direction approaching the drive pulley is set larger than a second limit value of electric power to be supplied to the motor when the moving member is moved in a second direction approaching the idler pulley.