| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device where a constant image density can be maintained by agitating aggregated toner in a vicinity of an opening for toner replenishing by having a blade part of a toner agitator come into contact with a top edge of the toner replenishing opening and preventing the deterioration of toner concentration due to aggregation of the toner. SOLUTION: When the toner agitating member is driven, a free end of the blade part 49a is brought into contact with a casing end part 41a restricting a top end of the toner replenishing opening 48. Since this blade part is provided with elasticity, it is bent back and forth by an impact of contact with the casing end part and the toner 50a in the vicinity of the toner replenishing opening is agitated. Thus, blocking of the toner in the vicinity of the toner replenishing opening is relieved and the aggregation of the toner caused by passage of time can be prevented. Therefore, control can be carried out to obtain a desired toner concentration without deterioration of the toner concentration due to the passage of time. |
