Slow startup can be caused by fluid blockages, missed shutdown steps, or software faults. Here’s how to get your CM750 up and running faster.
Normal vs abnormal startup time
Your CM750 should typically be ready to print in under 5 minutes. If it’s taking significantly longer, there’s usually an issue with fluid preparation, airlocks, or an unclean shutdown last time.
Top causes of long startup time
| Cause | Fix |
|---|---|
| Air in the ink system or pump | Run Fill Mixer and check ink lines |
| Nozzle blocked from dried ink | Clean head and inspect restrictor |
| Incorrect shutdown procedure | Use Drain, Fill Mixer, and Park routines |
| Firmware hang or boot delay | Reboot printer and check for software updates |
Startup recovery steps
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Run Fill Mixer from the System menu
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Manually clean nozzle and gutter
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Check fluid levels and confirm solvent hasn’t evaporated
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Restart printer and monitor startup sequence in diagnostics
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If issue repeats, run Clean Ink System
Best practices for faster future starts
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Always run Park before powering off
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Store printer within temperature spec (10–35°C)
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Use high-quality Needham solvents to avoid gelling