Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Copier, Good Price, Bad Paper Jams

Intially thought this was a great copier/printer and a great price. However, after 6 months of use the original unit I bought had a paper jam that could not be fixed in any manner other than sending it back to Sharp. I have received my replacement unit which after 1 day has had the same problem. To Sharp's credit they will send me a third unit but it is on backorder and they have no idea when they will have a replacement unit. I don't know if this is a chronic problem with this model or if I'm just unlucky enough to get two units with the same problem.