If your CIJ printer is randomly halting during jobs, this guide will help you identify electrical, fluid, or sensor faults causing the interruption.
Symptoms of mid-job stopping
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Prints start but pause intermittently
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Error log shows sporadic warnings
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Encoder, photocell, or VMS errors during run
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No ink flow or stream after brief operation
Most likely causes
| Cause | Fix |
|---|---|
| Faulty encoder or trigger sensor | Re-seat cables or replace sensor |
| Solvent or ink too low | Check and refill fluids |
| VMS out of range | Run viscosity calibration |
| High-temp or environmental fault | Ensure ambient conditions are within spec |
| Intermittent power or ground fault | Inspect power supply and cables |
Troubleshooting steps
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Check the fault log for any active warnings
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Inspect encoder/photocell alignment
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Run Clean Ink System if viscosity is unstable
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Confirm ventilation and temperature (10–35°C)
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Test fluid pump and power connections