A developing device 2 includes a control member 116 for controlling an amount of a developer supplied to an image bearing member 3 by causing a developer captured on a surface of a developing sleeve 119 to be uniform in layer thickness. The objects may be flat flexible objects with front and back edges being narrower than side walls. At least one image of an object is captured through a lens comprising a phase mask composed of a parallel plate and a wedge prism. An executable control is embedded within an active administration Web page. The notification may occur upon initiation of the replay andor when a new timeline is spawned. A drain assembly comprises a retaining ring, a drain plug and a base having a drain structure to which the retaining ring is secured.