Patent ID: 7970298
Filing Date: 2011-06-28
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image bearing member for bearing a toner image; toner image forming means for forming a toner image on said image bearing member; a detecting member for directing light to an object and for detecting the light reflected by the object; a controller for controlling a toner image forming condition of said toner image forming means in accordance with an output of said detecting member with respect to the toner image formed on said image bearing member and an output of said detecting member with respect to said image bearing member; a cleaning member, in contact with said image bearing member, for cleaning said image bearing member; an executing portion for executing, when the output with respect to said image bearing member reaches a reference level, an operation in a cleaning mode in which said cleaning member cleans said image bearing member; and a change portion for changing the reference level in accordance with an amount of use of said image bearing member.