Patent ID: 8942576
Filing Date: 2015-01-27
Classification: G03G,H04N

Abstract:
1. An image forming apparatus for forming an image based on an electrophotographic process applied to image data that represents the image, the image forming apparatus comprising: a device configured to perform a periodic movement for image formation; a storage unit configured to store a table for correcting density variation caused by the device, the table generated when a physical property of the device is in a reference state, wherein the table is used to correct periodic density variation in a direction in which the device is rotated and a correction amount according to a gradation is derived at each phase in the direction in which the device is rotated; a prediction unit configured to predict an amplitude of the variation caused when the physical property is in a state different from the reference state; and an adjustment unit configured to adjust the table based on the amplitude predicted by the prediction unit, wherein the adjustment unit is configured to adjust the amplitude of the density variation corrected by the table.