| 摘要 |
PURPOSE:To provide an image forming device whose operability for setting density is improved by enabling the adjustment of the density during the formation of an image. CONSTITUTION:A period during which primary electrification voltage in the process of the formation of the image and developing voltage are impressed. that is, the period during which one of the primary electrification driving signal of the output signal of a microcomputer 3 and a developing bias driving signal is turned ON is considered to be an image forming period, and when a picture density setting slide volume 1 is operated in this image forming period, and the digital data D2 of the microcomputer 3 is changed, the microcomputer 3 holds the digital data D3 to be outputted to a D/A converter 4, and changes the output digital data D3 in accordance with the input digital data D2 after the image forming period. |
