Methods and devices for detecting the absence of a media sheet within an image forming device

摘要

The present application is directed to methods and devices for determining the absence of media sheets within an image forming device. In one embodiment, a support section configured to hold a stack of media sheets is positioned in an input area of the image forming device. A pick mechanism is positioned to contact a top-most sheet in the support section. The pick mechanism may include a pick motor and a pick roller. A sensor roller may be positioned to contact the top-most media sheet at a position spaced away from the pick roller. A controller may determine the absence of a media sheet based on the movement of the sensor roller after a predetermined movement of the pick motor.