Cap Station Seal Leak (Overnight Loss)
medium
maintenance
capping
Poor capping lets heads dry overnight causing morning dropouts.
Likely Causes
Hardened cap lips / deformed springs: Air gap at rest.
Park position misaligned: Cap not centered under the head.
Quick Checks
- Ink the cap; check for wicking/level drop in 10 min.
- Inspect cap lips and springs for deformation.
Step-by-Step Fix
Replace cap top/seals — Restores airtight capping
Align carriage park position — Ensures full contact
Acceptance Criteria
- No overnight nozzle loss for 3 consecutive days