Patent ID: 6794626
Filing Date: 2004-09-21
Classification: G01B

Abstract:
A method of verifying an imageable media is securely fastened to a support surface of an imaging machine, said method comprising the steps of:providing an imageable media, wherein said media is mounted onto a support surface of a drum imaging machine; focusing a light beam onto said imageable media using an auto focus system by varying a position of a focusing lens relative to said imageable media; directing light reflected from said imageable media onto a light sensor, said light sensor operative for providing an electrical signal representative of a focus condition of said light beam on said imageable media; fixing a position of said focusing lens in response to said electrical signal falling below a first predetermined value indicating said light beam is focused onto said imageable media; maintaining said fixed position of said focusing lens after said light beam is in focus; rotating said drum slowly while monitoring said electrical signal provided by said light sensor, and stopping said rotation of said drum if said electrical signal exceeds a second predetermined value indicating said imageable media is not securely fastened to said surface.