Patent ID: 6163388
Filing Date: 2000-12-19
Classification: H04N

Abstract:
An apparatus for automatic scanning a document on a transparent plate of a scanner, said scanner starting scanning when a cover of said scanner suppresses the transparent plate of said scanner, said apparatus comprising:scanning means for scanning the document, said scanning means being positioned at a home position when said scanner is not in use;driving means for moving said scanning means responsive to a signal, said scanning means being moved from said home position; andsensor means for providing said signal for driving said driving means to move said scanning means from said home position, said sensor means producing said signal according to the position of the cover, when the cover is positioned on the surface of said transparent plate, said sensor means generates said signal, and said driving means moves said scanning means responsive to said signal, said sensor means comprising a sensor base and a sensor dog, said sensor base comprising a housing for providing space for accepting said sensor dog, said sensor dog being used to provide magnetic flux change in said housing for generating said signal, said sensor base comprising a magnetic detecting means, said sensor dog comprising a magnetic head, said housing being beside said magnetic detecting means, the magnetic field being changed when said sensor dog is positioned in said housing, and thus the magnetic flux is changed.