Abstract: A sheet separating mechanism for a sheet feeding apparatus includes a separation wall configured to face a stack of media sheets and a media guide attached to a top end of the separation wall. The separation wall includes an inclined surface that confronts the leading edges of the media sheets in the stack and a separation strip disposed on the inclined surface. At least one flat spring having a deflectable free end and a friction pad adhered to the free end is removably attached to the media guide. The separation strip and the friction pad are arranged such that, during a sheet feeding operation, the separation strip defines an initial separation surface and the friction pad defines a second separation surface downstream from the initial separation surface in the sheet feeding direction.

Abstract: A system and method for tracking the x, y and z coordinates of a position of an input device in an interactive computer system is disclosed. An image sensor situated on the input device captures images of an electronic marker displayed on a display screen. As the position of the input device changes, the features of the electronic marker as captured by the image sensor also change. Images of the electronic marker captured during game play are compared to a calibration image of the electronic marker to determine current x, y and z coordinates of positions of the input device. The game display is updated to reflect the movements of the input device.