I've got an old DTG Kiosk but it still prints perfectly. The other day it starting running rough kind of like the print carriage was being held back. I greased the tracks, cleaned decoder strip and driver belt. The print carriage moves just fine when I manually move it but during printing it sounds rough shaking the machine. I believe it is the left pulley for the drive belt because it clicks like a missing tooth when I manually move the carriage to the right (not to the left). Does anyone agree / disagree? Also, does anyone know where to find these types of parts? Thanks in advance.