Patent ID: 7164507

Claim:
A system, comprising: a movable platen with an imaging portion, said platen being configured to support a document; a motor for moving said platen between a calibrating position and an imaging position; a stationary imaging module having an imaging zone; and a calibration member having a reference reflectivity, said calibration member being located on a calibration portion of said platen; said stationary imaging module imaging an image on a medium, the image on the medium being located in said imaging zone of said stationary imaging module, when said platen is located at said imaging position; said stationary imaging module being unable to image said calibration member, said calibration member being located substantially outside said imaging zone of said stationary imaging module, when said platen is located at said imaging position; said stationary imaging module imaging said calibration member, said calibration member being located in said imaging zone of said stationary imaging module, when said platen is located at said calibrating position.