@Greg
I'm not sure about the scan quality of the Epson Workforce 630 you're using.
Few things to note, having higher resolution does not really translate directly to the scan quality. It is still best to see the scanned image to determine the quality yourself.
Another thing to note is while scanners can scan up to 4800 dpi, typically, most people will not need to scan until that resolution. Graphic designers usually scan at 300dpi. For those really concerned about keeping images sharp, they may go up to 600dpi. The thing is, when you scan at 600dpi and above, the file sizes will be come exponentially larger. The files can be so large that it may slow down your computer to a crawl.
Having said all that, I do believe that a dedicated scanner, as in a product whose sole purpose is to scan, should have better scan quality than those all-in-one devices. But if you're satisfied with your current Epson, there's probably no need to get a new scanner.
A good scan is one where you cannot tell the difference between your original and the image one screen.
@Greg
I'm not sure about the scan quality of the Epson Workforce 630 you're using.
Few things to note, having higher resolution does not really translate directly to the scan quality. It is still best to see the scanned image to determine the quality yourself.
Another thing to note is while scanners can scan up to 4800 dpi, typically, most people will not need to scan until that resolution. Graphic designers usually scan at 300dpi. For those really concerned about keeping images sharp, they may go up to 600dpi. The thing is, when you scan at 600dpi and above, the file sizes will be come exponentially larger. The files can be so large that it may slow down your computer to a crawl.
Having said all that, I do believe that a dedicated scanner, as in a product whose sole purpose is to scan, should have better scan quality than those all-in-one devices. But if you're satisfied with your current Epson, there's probably no need to get a new scanner.
A good scan is one where you cannot tell the difference between your original and the image one screen.