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Troubleshooting

Flexo and gravure problem-solving guides for pressroom issues.

Use this guide for both flexo and gravure doctoring problems. Match the symptom, then work the cause and remedy in order.

Cause

Foreign particle under blade

Remedy

  1. Reduce blade pressure under blade
  2. Install ink filters in ink system
  3. Install magnets in ink system
  4. Change the doctor blade
  5. Cut in doctor blade
  6. Install ink filters
  7. Change the doctor blade
  8. Check roughness of anilox roller
  9. Check new blade tip for damage
  10. Abrasive ink and/or solvents — use stainless steel doctor blade
  11. Use different pigments