ABNORMALITY DIAGNOSTIC DEVICE OF SUPPLY MECHANISM, IMAGE FORMING APPARATUS, AND ABNORMALITY DIAGNOSTIC PROGRAM OF SUPPLY MECHANISM

摘要

PROBLEM TO BE SOLVED: To appropriately diagnose the abnormality of a supply mechanism according to the supply and consumption state of developer.SOLUTION: An abnormality diagnostic device 24 of a supply mechanism 22 includes: estimation means 24 for estimating the possibility of the abnormality of the supply mechanism 22 on the basis of a pixel count cumulative value X of output images and a developer supply time Y required for the supply mechanism 22 to supply a developer G including a toner T to a developing unit 46; and diagnostic means 24 for diagnosing the presence or absence of the abnormality of the supply mechanism 22 when the estimation means 24 has estimated the possibility of the abnormality of the supply mechanism 22.