Parts List !!better!! | Dp 7120

| Symptom | Most Likely Part(s) from DP 7120 Parts List | |---------|----------------------------------------------| | Vertical white lines on print | Printhead (worn element) | | Labels feed crooked or jam | Platen roller, media guide | | No power | PSU, fuse, main board | | Printer doesn’t detect labels | Gap sensor or black mark sensor | | Loud grinding noise | Drive gear, idler gear, or stepper motor | | Ribbon wrinkles | Ribbon tension arm, take-up hub | | Buttons work, LCD blank | Control panel membrane or LCD ribbon | | USB/Serial not communicating | I/O board, or main board logic |

Always handle the printhead by its edges and use an ESD strap during replacement. dp 7120 parts list