Patent ID: 7764382

Claim:
A printer or electronic copier, comprising: a print engine configured to apply a marking medium to an image bearing surface to form a printed image on an output media; a system for providing specular reflectance of the image bearing surface in the printer or electronic copier, the system comprising: (i) an illuminator array positioned adjacent to the image bearing surface, the illuminator array comprising a plurality of discrete illuminator elements spaced in a linear arrangement, the illuminating elements each being configured to emit a light beam; (ii) a lens array comprising a plurality of collimator lenses positioned between the illuminator array and the image bearing surface, the collimator lenses being positioned with respect to the illuminator array to receive the light beams emitted by the illuminator elements and to collimate the light beams for transmission to the image bearing surface at an incidence angle; and (iii) a linear sensor array comprising a plurality of sensors positioned adjacent to the image bearing surface such that specular and diffuse portions of the collimated light beams reflecting off the image bearing surface at a reflectance angle are received by the sensors.