| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device capable of performing stable development over a long term by preventing welding caused by the deterioration of toner and the occurrence of unelectrified toner even in the case of using the toner whose melting temperature is low and which is fixed at low temperature. <P>SOLUTION: A rotatable circulating roller 14 is arranged to abut on a peeling supply roller 11 and rotated at the same speed as the roller 11. Thus, the toner included in the air bubbles of the roller 11 is pushed out at the abutting entrance of both of them, and new toner is sucked in the air bubbles thereof at the abutting exit, so that the toner is prevented from consecutively passing through the abutting part of a developing roller 10 and the roller 11. As a result, the storage of the frictional heat of the toner is prevented, and the welding on various members caused by the softening of the toner and the deterioration of the electrifying performance of the toner are prevented. <P>COPYRIGHT: (C)2004,JPO |
