Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Wireless poor, usb not much better, doesn't scan

Communications just keep breaking down with this printer. Wireless goes into a sleep mode & never recovers. When connected with a usb cable it's a little better, but it NEVER has scanned. I have worked as a professional IT person for decades & set up devices constantly. The problems with this device are NOT due to the end users lack of ability! Check the review details, not just the overall summaries and you'll find a LOT of frustrated X4550 owners.