This machine USES more than one year. After found printing ribbon is often hang buckle, paper is often cut. Sometimes even cause printer downtime and breakage. ummservice manual download site
 ummservice manual download site
Open the print head check, found a needle stuck, out of the needle, not free. Remove dirt, and elongated needle spring back (to enhance elasticity) after the commissioning, troubleshooting.ummservice manual download site