Conclusion: The Canon CanoScan 4200F works well enough to let you scan snapshots and slides to print for friends and family, although quality is less than ideal. OCR accuracy is surprisingly good, and the ability to scan directly to a PDF file is a welcome convenience.
Pros: Color-restore feature revives old photos. Surprisingly good OCR accuracy. Scans directly to PDF format.
Cons: No ADF. Dust and scratch removal feature doesn't do much. Slide scanning produces minimally usable scan quality.