Scanning at 4000 DPI was fairly slow, so that resolution was only used for photos that may be enlarged. I scanned slides at 2000 DPI and obtained adequate resolution from normal prints. I used it to scan a couple of thousand slides, a few hundred photos, a few negatives and other documents. For anyone using a previous version of Windows, this is a pretty good scanner. It appears that for Windows 10 users, Canon has abandoned those that own the 8800 and earlier scanners.
When I last checked, I could not find a Windows 10 scanner driver from Canon. Good scanner, but Canon did not update the drivers for Windows 10
