Patent ID: 7499660
Filing Date: 2009-03-03
Classification: G03G,H04N

Abstract:
1. An image forming apparatus, which visualizes an image, according to a latent image potential, on an image bearing body, which includes a charging unit and an exposing unit, in which a development potential is applied to a developing unit, and a development contrast is a difference between the latent image potential and the development potential, wherein a designated development contrast is defined as a sum of a basic development contrast Vcont, and a development correction amount ΔVcont 1 , for correcting the basic development contrast Vcont, said image forming apparatus comprising: (a) a γ conversion unit having a γ conversion table γα (b) an arithmetic operation unit for calculating a γ conversion table γNow wherein the subscript i is a value of an output density signal in the γ conversion table, and wherein the γ conversion unit conducts γ conversion of the third value VcontNow of the designated development contrast, based on the γ conversion table γNow