Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing scanning performance

This model seems to be a reasonably good, if bulky, printer.However, my primary reasons for buying this model were the scanning functions, and particularly the film/slide scanning features. The performance is really subpar for this use. Both prints and slides end up blurry in scans, even at the highest resolution (which isn't very high). I've thoroughly cleaned the top surface of the glass, but there seems to be some residue on the bottom side, which I can't access to clean.The color accuracy of the scanner is also not good. Slides which have vibrant, exciting color on the light table, produce scanned images which are flat and dull.Finally, the scanning software (MP Navigator) has a very poor interface and makes scanning large numbers of images more tedious than it needs to be.