Provided is an image forming apparatus including an image bearing member, a charging member, an exposing member, a developer carrying member, a storage member to store a first lifetime threshold for the first image forming mode, a second lifetime threshold for the second image forming mode and a value related to a driving amount of the image bearing member. The image forming apparatus further includes a controller to (i) perform a first determination regarding the lifetime corresponding to the first mode based on the value related to the driving amount and the first lifetime threshold and (ii) perform a second determination regarding the lifetime corresponding to the second mode based on the value related to the driving amount and the second lifetime threshold, and a notifying unit to perform a notification based on a result of the first or second determination to the image bearing member.