Patent ID: 7734200
Filing Date: 2010-06-08
Classification: G03G

Abstract:
1. A lifetime management device for an image forming apparatus that forms an image on a recording medium and includes a plurality of components, the lifetime management device comprising: a counting unit that counts number of prints produced by the image forming apparatus with respect to each of the components; a measuring unit that measures an operation amount of at least part of the components with respect to each of the components; and a calculating unit that calculates a remaining lifetime of each of the components based on at least one of a lifetime index, the number of prints, and the operation amount, wherein the calculating unit corrects the number of prints based on the operation amount to obtain a corrected value, and calculates the remaining lifetime based on the corrected value and the lifetime index, and wherein the calculating unit calculates a first remaining lifetime based on the corrected value and the lifetime index, and a second remaining lifetime based on the operation amount and the lifetime index, and determines a shorter one of the first remaining lifetime and the second remaining lifetime as the remaining lifetime.