| 摘要 |
PROBLEM TO BE SOLVED: To protect user's safety and to improve operability in the case of replacing an image carrier and a developing unit. SOLUTION: In the color image forming device having the black developing unit 21B disposed fixedly and color (yellow, magenta, and cyan) developing units disposed rotatably, fitting opening 52 for the black developing unit 21B and image carrier 13 and a replacement opening 51 for the color developing units are made in the side of the main body of the device, and a door 50 for covering the replacement opening 51 is attached so that it is free to be opened and closed. To take out, for example, the yellow developing unit, a push-button is depressed to move the yellow developing unit to the replacement opening 51, and then by opening the door 50, a power source for a drive means for the color developing units disposed fixedly is turned off in conjunction with it, so that the rotation of a development rotor is prevented and thus user's safety can be ensured. |
