Patent ID: 9025198
Filing Date: 2015-05-05
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an area ratio calculating unit that calculates at least one area ratio of two areas of divisional images among a plurality of areas of divisional images obtained by dividing an entirety of an image in a sub-scanning direction, the two areas of divisional images being divided from the entirety of the image such that the two areas of divisional images each include a complete length of the image along a main scanning direction; a base value setting unit that sets a base value of an image process condition based on the at least one area ratio of the image to be formed; and a correction value calculating unit that calculates a correction value for correcting the base value based at least on a pattern of the image by estimating a ratio of solid images to linear images of the image according to an expression of: wherein the image is formed based on the correction value calculated by the correction value calculating unit.