Developer storage container, image forming unit and image forming apparatus

A developer storage container comprising:

• a developer storage portion in which a developer is stored, said developer storage portion having a wall;
• a rotating body rotatably provided in said developer storage portion;
• an agitating plate having a first end engaging said rotating body and a second end as a free end, said second end reciprocally moving along said wall, said agitating plate having a plurality of ribs that define opening portions therebetween, said agitating plate having a rod-shaped member which extends parallel to said rotating body;
• and
• a regulating member provided in said developer storage portion so that said agitating plate is located between said regulating member and said wall,
• wherein said regulating member is provided at a distance from said agitating plate in such a manner that said regulating member is contactable with said agitating plate by a movement of the agitating plate,
• wherein when said agitating plate contacts said regulating member, said regulating member restricts movement of said agitating plate in a direction substantially perpendicular to a moving direction of said second end,
• wherein as said agitating plate moves along said wall, an angle between said agitating plate and said wall changes, and
• wherein an area of said opening portions is larger in a lower section of said agitating plate than in an upper section of said agitating plate.

A developer storage container comprising:

• a developer storage portion in which a developer is stored, said developer storage portion having a wall;
• a rotating body rotatably provided in said developer storage portion;
• an agitating plate having a first end engaging said rotating body and a second end as a free end, said second end reciprocally moving along said wall, said agitating plate having a rod-shaped member which extends parallel to said rotating body;
• and
• a regulating member provided in said developer storage portion so that said agitating plate is located between said regulating member and said wall, said regulating member being disposed at a position closer to said second end than to said first end so that an interval is formed between said regulating member and said agitating plate,
• wherein said regulating member is provided at a distance from said agitating plate in such a manner that said regulating member is contactable with said agitating plate by a movement of the agitating plate,
• wherein when said agitating plate contacts said regulating member, said regulating member restricts movement of said agitating plate in a direction substantially perpendicular to a moving direction of said second end, and
• wherein as said agitating plate moves along said wall, an angle between said agitating plate and said wall changes.