Patent ID: 8824917

Claim:
A developer supplying apparatus configured to supply a developer, which is powdery, to a target, the developer supplying apparatus comprising: a brush roller including: a roller body having a cylindrical peripheral surface; and a brush part having a number of fibrous members disposed on the cylindrical peripheral surface of the roller body, the brush roller being configured to carry the developer at the brush part and to rotate about a rotation axis; a casing including a developer storing portion configured to store the developer to be carried on the brush part, the casing having an opening formed along the rotation axis of the brush roller, the casing being configured to support the brush roller rotatably such that the brush part is exposed outside from the opening and faces the target; and a side seal disposed in an end of the opening in a direction along the rotation axis of the brush roller such that the side seal protrudes toward the brush part to press the brush part toward the rotation axis, the side seal being configured to reduce leakage of the developer outside at the end of the opening.