Method of adjusting image density parameters by repetitively adjusting image density parameter values based upon reference pattern density at standby time intervals

摘要

The present invention is directed to a density parameter adjusting method in which adjustment of parameters on an image density based upon detection of a density of a toner image related to a reference density pattern and results of the density detection is repetitively performed at intervals of a standby time so as to obtain appropriate values of the parameters on the image density. The standby time is found based upon a level of drive current for a reflection type photosensor which is set in detecting the density of the toner image related to the reference density pattern.