Fix CIJ gutter faults caused by ink build-up, sensor failure, or wiring issues to restore printhead recycling.
Why the gutter matters
The gutter collects uncharged ink droplets. If it’s blocked or the sensor fails, your printer can’t confirm safe recycling—and shuts down to prevent spills.
Symptoms
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Error: Gutter fault or Gutter sensor missing
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Printhead won’t start ink flow
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No continuity or detection in diagnostics
Fixes by cause
| Issue | Solution |
|---|---|
| Dried ink in gutter tube | Clean with solvent-soaked swab |
| Faulty sensor wiring | Reseat cable or replace sensor harness |
| Sensor physically misaligned | Reposition sensor to factory spec |
| Electronics fault in signal path | Test with multimeter or replace PCB |
Recovery steps
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Power off and clean gutter + sensor
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Inspect wiring for loose pins or breaks
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Run diagnostic test:
System > Sensor Test -
If error persists, replace gutter sensor module
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Restart system and verify stable ink return