Image forming apparatus having different modes for preventing defective cleaning

   
   

In a color image forming apparatus of a tandem type, a full color image forming mode and a monochrome image forming mode are made selectable. In the monochrome image forming mode, toner is supplied between photosensitive drums for colors that do not contribute to image formation and cleaning devices therefor. Consequently, defective cleaning can be prevented and formation of high quality images becomes possible.

 
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> NETWORK THAT CONVERTS DATA FROM A FIRST FORMAT INTO A SECOND FORMAT FOR COMMUNICATION, DATA COMMUNICATION APPARATUS CAPABLE OF COMMUNICATION OF DATA IN A FIRST FORMAT, COMMUNICATION SYSTEM INCORPORATING ALL THE ABOVE, AND CONTROL METHOD FOR ALL THE ABOVE

> Image forming apparatus with control for varying conveying speed between a registration section and a decelerating position

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