# \#how-to

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## [\[How-to\] Fix thermal printer blank lines](https://forum.clockworkpi.com/t/how-to-fix-thermal-printer-blank-lines/10137)

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**Author:** [@Petrakis](https://forum.clockworkpi.com/u/Petrakis)\
**Replies:** 4\
**Last updated:** [February 14, 2026, 7:13am UTC](https://forum.clockworkpi.com/t/how-to-fix-thermal-printer-blank-lines/10137 "2026-02-14T07:13:46Z")

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Issue: Causes: The lines are most likely caused by dye blobs accumulated on the printer head. Fix: You can clean the head with some isopropyl alcohol and q-tips and your prints should look flawless again. In m…