| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device capable of preventing toner accumulation on an entrance seal and preventing occurrence of an abnormal image over a long period of time. <P>SOLUTION: An entrance seal 57 is supported in a case of a developing device 5 in a movable state and is moved and alternatively disposed so as to abut on both a photoreceptor drum 1 and a developing roller 51. Therefore, the entrance seal 57 may be moved to abut on the photoreceptor drum 1 or the developing device 51 by selecting either the photoreceptor drum 1 or the developing device 51 in conjunction with the operation of the developing device 5. And, a scattered toner remained on the entrance seal 57 is collected in the developing device 5 by abutting the entrance seal 57 on the developing roller 51 in a state where the entrance seal 57 is abutted on the photoreceptor drum 1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
