Patent ID: 9621758
Date: 2017-04-11
CPC Classifications: G02B,H04N

Claim:
1. A system for processing documents to obtain optical image data, comprising: an imager for scanning a document to obtain image data, wherein the imager comprises a cover through which the imager scans the document and the imager has a depth a field that includes a surface of the cover, wherein elements within the depth of field are generally in focus and elements outside the depth of field are generally not in focus; a document transport for conveying the document along a document path over the cover, wherein the imager scans the document as the transport conveys the document over the cover; a guide opposing the cover for guiding the document toward the cover as the document transport conveys the document past the imager, wherein the guide comprises an opening opposing the imager, wherein the opening is configured so that portions of the guide exposed to the imager are positioned outside the depth of field of the imager.