Patent ID: 8831449
Filing Date: 2014-09-09
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image carrier; a developing device; a transfer device; a fixing device, wherein an electrostatic latent image formed on the image carrier is rendered visible as a toner image by depositing toner thereon by the developing device and the toner image is transferred by the transfer device and fixed onto a recording medium by the fixing device and output; a density fluctuation meter including a rotary position detector to detect a position of the image carrier in a rotation direction; a density fluctuation detector to detect the density fluctuation of the image carrier in the rotation direction; and a density fluctuation storage to store the density fluctuation detected by the density fluctuation detector; a density fluctuation extractor unit, including: the voltage to be applied to the developing device being controlled and the toner image output based on the control table stored in the control table storage, wherein the control table is created by using only the components below the n-th higher harmonics being below a previously set phase error when the basic rotational cycle of the image carrier is set to 1.