Abstract: Method and apparatus for content based dynamic rendering of user interfaces. The present invention provides a system that receives an unformatted stream of content, and then considers the physical dimensions of its controlled screen area and dynamically lays out the content to fit in this screen area.

Abstract: The invention provides an agitator for releasing powder toner through a bottom opening of a hopper. The agitator has a screen for placing over the opening and an element which, when positioned in the hopper, is in contact with the upper surface of the screen. Toner normally bridges the openings in the screen so that there is normally no flow through the screen and the element is operable to brush over the upper surface of the screen to break down the bridging locally, thereby effectively sifting powder toner through the screen. On stopping the element, the toner again bridges the openings and flow of toner stops. The invention also provides a feeder which magnetically transports toner received from the hopper, and an applicator which takes the toner magnetically from the feeder and transports the toner to the point of use.

Abstract: A toner feeder is provided for use with a magnetic roller to tone electrostatic images. The feeder includes a doctor blade attached to an adjustable block for varying the gap between an edge of the blade and the magnetic roller. The block and blade combine to define a recess above the blade and toner builds up in the recess to present a living wall of toner. This reduces agglomeration and build up of toner lumps. The invention is particularly useful with toners requiring relatively low fusing pressures.