| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of alternately/repeatedly using plural developing devices, for attaining development, with a simple constitution. SOLUTION: This device is constituted to make plural developing units movable between distance positions at a certain interval from a photoreceptor drum and development positions facing the photoreceptor drum, to attain the development. At this time, the device is provided with cam members 35A and 35B which move the developing units 10A and 10B to the distance and development positions and is used as a position regulating means and a cam position detecting means for detecting the positions of the cam members 35A and 35B and constituted so that each of the plural developing units is moved to the development position by a change in the rotational directions of the cam members 35A and 35B. |
