ProJet® x60 Series User Guide Troubleshooting the ProJet x60 Printers3dscentral.3dsystems.com 51 All Rights Reserved5/12/137.3.2 Troubleshoot Print Head/Weak PartsIf your printer is reporting print head errors, or is building parts that break too easily, follow the flowchartbelow. Also see Section 7.8, ’Part Quality Issues Streaky/Striped Parts, Delamination, Weak Parts’.How to do itTo remove the printhead and clean the pogo pins, follow the steps in Section 5.3, ’Change Print Head’.