The Vault
Troubleshooting guide
The printhead is hitting or scraping the board on my UV flatbed and leaving streaks and scratches, how do I stop head strikes?
Posted by the SuperPrinters team · 7/26/2026
On rigid or board jobs the carriage strikes or drags across the media, leaving dark smear streaks or gouges and sometimes grinding or knocking sounds. Warped or lifted corners catch the head, and it may throw a collision error. Most often caused by warped, cupped, or lifted-corner rigid media sitting higher than expected, often worsened by cure heat during the run, among other possible causes — a full step-by-step diagnostic and fix follows below.
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