A power saving processing apparatus that includes a processing unit, an output unit and a transition unit is provided. The processing unit is configured to transition from a first state where power is supplied to a second state where power supply is restricted, executes a first process required for such transition before transition from the first state to the second state, and executes a second process to output a first signal after executing the first process. The output unit outputs a second signal after receiving the first signal output from the processing unit, and outputs the second signal when not receiving the first signal output from the processing unit within a predetermined time period after a predetermined time after the first process starts. The transition unit transitions the processing unit to the second state after receiving the second signal output from the output unit.