Hey all....I'm having an issue with an HP Designjet 9000s where randomly within a print or at the very beginning the print will stop with a "media jam" error. The print head hasn't touched the media and is safely above the capping station. The problem appears to be that the pinch rollers aren't pulling the media all the way through and the tension either becomes too tight and triggers a paper jam on the printer. Is it a motor issue, a vinyl issue? Any input would be greatly appreciated. Thanks again.