Image Forming Apparatus and Image Forming Method

An image forming apparatus continuously performs primary paper feeding in which paper is transported from a paper feeding roller to a resist position roller and secondary paper feeding in which the paper is transported from the resist position roller to an ejection roller while not stopping the resist position roller. The image forming apparatus divides image data into pieces of band data, stores the pieces of band data, calculates the number of specific bands corresponding to an in-advance paper feeding timing corresponding to the paper size and the paper orientation, and outputs an in-advance paper feeding timing notice when image process is completed up to the number of specific bands.