Patent Number: 6,794,669

Title: Media sensing apparatus for detecting an absence of print media

Abstract: A media sensing apparatus includes a media sensor including a light source for generating a light beam, and a diffuse detector positioned in relation to the light source for detecting diffuse light components reflected from a sheet of print media. A media support is provided having a detection portion. The detection portion is located such that the media sensor faces the detection portion. The detection portion is configured to direct specular light components reflected from the detection portion to the diffuse detector in an absence of the sheet of print media being interposed between the media sensor and the detection portion.

Inventors: Chelvayohan; Mahesan (Lexington, KY), Smith; Herman Anthony (Winchester, KY), Simpson; Charles Jarrett (Lexington, KY)

Assignee: Lexmark International, Inc.

International Classification: B41J 11/00 (20060101); G01N 021/86 ()

Expiration Date: 09/21/2021