| 摘要 |
PURPOSE:To output an image in which pitch irregularities, moires and color irregularities are very little, in an image forming device or color image forming device that electrifies an image carrier by the application of an oscillating voltage to an electrifier. CONSTITUTION:In the image forming device that electrifies the image carrier 1 by the application of an oscillating voltage to the electrifier 2, an electrification frequency is varied. In the color image forming device that forms a color image by repetitions of an image forming process including a process for electrifiying an image carrier by the application of an oscillating voltage to an electrifier, an electrification frequency is varied each time the image forming process is repeated; the varied frequencies are different from one another or their waveform phases are different from one another. |
