| 摘要 |
PROBLEM TO BE SOLVED: To provide an color image forming device by which a resist pattern is highly precisely detected, positional deviation is accurately corrected and an excellent printing quality is obtained and which is inexpensive by controlling a photoreceptive drum driving motor by taking the driving information of a photoreceptive drum surface on which the resist pattern is actually plotted as a reference. SOLUTION: A photoreceptive drum driving motor speed set value is set for a speed setting part 1b by an arithmetic part 1a, and when the driving of the photoreceptive drum driving motor 1d is started, a driving information signal is outputted by an inside encoder and is inputted to the arithmetic part 1a. A photoreceptive drum 1f is driven through a transmission system 1e, and the driving information of the photoreceptive drum surface is obtained by a photoreceptive drum driving information detecting part 1g, and is inputted to the arithmetic part 1a. Thus, a series of real time processing such as calculation ± speed setting ± driving information obtaining ± calculation is successively executed based on information from the photoreceptive drum driving motor 1d and the photoreceptive drum driving information detecting part 1g. |
