Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works PERFECTLY for me!

Duplex so good I started to print books on demand with this. WOW! Cannot understand why anyone would have PDF problems if using modern applications. I make PDFs and print 200-page (duplex) book faultlessly. Try using Windows 2000 or XP and try using a properly distilled acrobat version 3, 4, or 5. Works for me!