Patent ID: 7865090
Filing Date: 2011-01-04
Classification: G03G

Abstract:
1. A maintenance management system comprising: an upper-limit information storage unit configured to store an upper limit of usage of at least one component identifier of a component, which upper-limit is expressed by using an accumulated number of revolutions of a photoconductive drum in an image forming apparatus; a revolution number information acquiring unit configured to acquire a number of revolutions of the photoconductive drum used in the image forming apparatus; an alarm output unit configured to calculate the accumulated number of revolutions of the photoconductive drum, calculate a component service life predictive value by using the upper limit stored in the upper-limit information storage unit for each of the at least one component identifier, and output an alarm comprising component information pertaining to the corresponding component identifier in the event that the component service life predictive value is less than or equal to a remainder day reference value; and a controller which determines the remainder day reference value by determining an average usage length day for each of the at least one component identifier, and dividing the component service life predictive value by the average usage length per day.