Did some test runs last night for resolution. On a single page, my test included;
- Auto color select (i.e. color) 150 DPI....84/10/6 (my original resolution)
- B&W 300 DPI....................................65/0/1
- B&W 400 DPI....................................57/1/0
- B&W 600 DPI..................................10/0/0
- B&W 1200 DPI...................................4/0/0
where the n1/n2/n3 are;
n1 = the number of places marked as questionable by the OCR
n2 = the number of actual typos marked as questionable by the OCR
n3 = the number of actual typos
not marked as questionable by the OCR (i.e. found through manual search)
I realize that this does not represent a statistically significant sample but it does to indicate that 600 DPI is the way I need to go with my scanning.