An image forming apparatus includes an image forming mechanism for forming an image, at least one developer container replaceably provided in the image forming apparatus for containing developer, a housing for housing the image forming mechanism and the at least one developer container, and an operation device provided on the housing. The housing includes at least one openable portion opened for replacement of the at least one developer container. The operation device includes an instruction display part for indicating a message prompting opening of the at least one openable portion, and at least one developer-end display part for indicating depletion or near-depletion of the developer contained in any one of the at least one developer container. The at least one developer-end display part and the instruction display part are placed adjacent to each other and are viewable from a front side of the image forming apparatus.