Patent ID: 6470154
Filing Date: 2002-10-22
Classification: G03G

Abstract:
A color image forming apparatus for forming images in a monochromatic mode and a full color mode on an image bearing member by an electrophotographic system, comprising:means for forming a toner image in a predetermined color mode on the image bearing member; transfer means for transferring the toner image onto a transfer material; cleaning means for removing any toner remaining on said image bearing member after the transfer operation; color mode detecting means for detecting a kind of selected color mode; and determining means for determining a time for which said cleaning means cleans the image bearing member, on the basis of the detected kind of color mode; wherein the time of said cleaning means operates based on a specific weighting for each of the monochromatic mode and the full color mode, and wherein said color mode detecting means determines the time based on an added value representing a total weighting of each mode.