Developing apparatus having developer regulating member

A developing apparatus for an electrophotographic device, the electrophotographic device including a photosensitive body rotatably driven in a predetermined direction, said developing apparatus comprising:

• a developing roll group which opposes the photosensitive body and has at least two developing rolls including a first developing roll which rotates in a direction reverse to that of the photosensitive body and a second developing roll which rotates in the same direction as that of the photosensitive body;
• a developer regulating member having a regulating portion for regulating a thickness of a developer to be supplied to said first and second developing rolls, said regulating portion being disposed opposite to the photosensitive body with respect to a line connecting centers of said first and second developing rolls;
• a transfer roll for supplying the developer to one of said first and second developing rolls which form said developing roll group;
• and
• a developer transfer path through which a part of the developer which is supplied to said first developing roll is delivered to said second developing roll through a back surface of said developer regulating member.