Given that I believe Adobe OCR is the best on the market to-date it still has a problem recognizing the difference between a 5 and a 6. I find when it converts scans to "courier new" is when the problem truly manifests itself. In the attached files is a scan of a receipt scanned on a Cannon TR7520, using SCAN GEAR, "UNSHARP MASK" on, with other settings to darken scan. Also the converted file is included. Generally It properly converts to a five but if enough "debris" is included in the loop, it converts to a 6, it seems to ignore the right angle in the number.