Patent ID: 7414763
Filing Date: 2008-08-19
Classification: H04N

Abstract:
1. A contact image sensor fixing device having a frame, a contact image sensor, and a white roller, the contact image sensor fixing device comprising: an elastic unit mounted on the frame to provide an elastic force to push the contact image sensor against the white roller with a pressure, the contact image sensor reading data from a document as the document passes between the contact image sensor and the white roller; a holder unit to accommodate and support the contact image sensor; and at least one holder-movable unit hinge-connected to the frame and freely moving the holder unit against the elastic force of the elastic unit applied to the contact image sensor to maintain an even pressure between the white roller and the contact image sensor when the contact image sensor receives a rotation force of the white roller, wherein the at least one holder-movable unit comprises: a hinge bracket; a movable hinge formed on one end of the hinge bracket and a corresponding portion of the holder unit to movably support the holder unit within a certain range when the holder unit is elastically displaced by the elastic unit; and a fixed hinge formed on another end of the hinge bracket and a corresponding portion of the frame to hingedly attach the other end of the hinge bracket to the frame to enable the holder unit supported by the movable hinge to rotate beyond a moving range of the movable hinge.