| US 7,490,828 B2 | ||
| Image-based edge detection of stacked sheet media | ||
| Akihiro Machida, Sunnyvale, Calif. (US); and Masatoshi Yamai, Tokyo (Japan) | ||
| Assigned to Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore (Singapore) | ||
| Filed on Oct. 17, 2005, as Appl. No. 11/252,085. | ||
| Prior Publication US 2007/0085263 A1, Apr. 19, 2007 | ||
| Int. Cl. B65H 1/00 (2006.01) | ||
| U.S. Cl. 271—145 | 19 Claims |
| 1. An apparatus, comprising:
a receptacle for holding a stack of sheet media;
an image sensor operable to generate image data in response to light received from a view encompassing edges of ones of the
sheet media held in the receptacle;
a sheet media edge detector operable to detect edges of individual ones of the sheet media in the image data generated by
the image sensor;
a housing, comprising:
a rendering engine operable to mark the sheet media;
the image sensor;
the receptacle; and
a sheet media feeder operable to extract seriatim individual sheet media from the receptacle; and
an optical element operable to direct light from the view to the image sensor;
wherein the receptacle is movable within the housing, and further comprising a cleaner attached to the receptacle operable
to wipe a surface of the optical element in response to movement of the receptacle within the housing.
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