Patent ID: 8737889

Claim:
A developing device comprising: a housing; a developer carrier which is rotatably supported by the housing, and which is configured to carry developer on a circumferential surface thereof; and a layer thickness regulating member which includes: a blade configured to contact the circumferential surface of the developer carrier along a rotational axial direction of the developer carrier; and a support member supporting the blade, the layer thickness regulating member being configured to regulate a layer thickness of the developer on the circumferential surface of the developer carrier, wherein the support member includes: a contact part which contacts the blade; and a pair of attachment parts which are attached to the housing, wherein the attachment parts are provide at both sides of the contact part in the rotational axial direction and are further protruded than the contact part in a direction away from the developer carrier, and wherein a surface of the housing, which opposes the layer thickness regulating member is formed with a recess at a part opposing an edge portion of each of the attachment parts.