| 摘要 |
PROBLEM TO BE SOLVED: To decrease maximum value of load current and to improve productivity. SOLUTION: This device 10 is constituted by being provided with a developing unit 40 where 4 developing devices Y, M, C and K are integrated in a rotating body and by having the rotating body rotated, these 4 developing devices are faced to a photoreceptor drum 32 and a visual image is formed on a surface of the photoreceptor drum 32 where an electrostatic latent image is formed, a stapler 28 stapling together a bunch of a multiple recording paper sheet where the visual image is transferred, a predicting part 66 predicting operation timing of the stapler 28 based on a detected result of a passing sensor 64 and a control part 68 controlling timing for operation of rotation of the above rotating body by having a specified operation pattern selected from among a multiple number of operation patterns that are fixed beforehand so that the above timing of the rotational operation is not overlapped with an operation timing of the stapler 28 predicted by the predicting part 66. |
