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How to Fix CIJ Ink That Won’t Dry or Keeps Smudging

If your codes won’t dry and keep smudging, start with these quick fixes before changing ink.

✅ 5 fast fixes

  1. Lower line speed
     More time = better drying

  2. Check solvent type
     Acetone > Ethanol > MEK (fastest to slowest)

  3. Reduce humidity near print zone
     Install dehumidifiers or redirect airflow

  4. Use high-adhesion ink
     Especially for plastics and glossy films

  5. Check ink expiry
     Old fluid = slow drying and poor adhesion

Bonus tip

Drying too fast? You may get overspray. Always balance speed and control.