Patent ID: 8855505

Claim:
An image stabilization control system directed to an electrophotographic process, comprising: a color measuring unit for measuring the color of a toner image after being fixed on a medium; and a control unit, wherein said color measuring unit has an SCE color measuring function of measuring a component excluding specular reflection out of reflected light produced by light emitted from a light source being reflected at said toner image and an SCI color measuring function of measuring said reflected light including said specular reflection, and said control unit includes a first calculation unit for obtaining a calculated value associated with glossiness in said toner image based on an SCI color measurement result obtained by said SCI color measuring function and an SCE color measurement result obtained by said SCE color measuring function, a second calculation unit for obtaining, from chrominance of said toner image relative to a predetermined reference value, a first component attributed to a glossiness difference in the chrominance and a second component attributed to another factor, based on at least one of said SCE color measurement result and said SCI color measurement result as well as said calculated value, and an adjusting unit for adjusting a control value for a fixing step in said electrophotographic process based on said first component, and adjusting a control value for a step other than said fixing step in said electrophotographic process based on said second component.