| 摘要 |
PROBLEM TO BE SOLVED: To suppress the scale of a driving source for driving plural photoreceptive drums from being large and a driving transmission system from becoming complicated. SOLUTION: Plural printing parts 100a-100d are individually provided with the photoreceptive drums 10-40, and a printing medium 2 is successively fed to each printing part, so that prescribed printing is executed at each printing part. Driving motors 12-42 are arranged as photoreceptive drum driving means individually driving the photoreceptive drums 10-40 provided at inside. Also, a feeding motor 14 is arranged as a feed driving means to drive a feeding mechanism feeding the printing medium 2 to each printing part separately from the photoreceptive drum driving means. By this constitution, a load at the time of driving the plural photoreceptive drums is dispersed, so that the increase of the scale of each drive motor which is the driving source and the complication of the driving transmission system are avoided. |
