Learn how to connect, configure, and fine-tune encoder settings on your CM750 to ensure accurate print positioning and consistent code placement.
Why encoder setup matters
An encoder synchronises your printer with line speed. If it's misconfigured, you’ll get stretched, squashed, or drifting codes. Setting it up correctly ensures precise prints every time.
When to use an encoder
Use an encoder when:
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Line speed varies (belt conveyors, flow wrappers)
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Precise print positioning is critical
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You're printing on non-uniform product spacing
Encoder setup steps on the CM750
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Connect the encoder
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Plug into the encoder input port on the rear panel
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Confirm wiring is secure and voltage matches spec (typically 5V or 24V)
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Enable encoder mode
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Navigate to
System > Print Parameters > Print Interval -
Select External Encoder instead of Internal or Fixed Interval
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Calibrate pulses-per-metre (PPM)
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Use your encoder’s spec sheet or run a manual calibration
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Measure printed length vs actual and adjust PPM accordingly
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Test & refine
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Print test codes on moving product
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Adjust encoder direction, PPM, or delay if print is misaligned
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Troubleshooting encoder issues
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Print drifts with speed? ➤ Wrong PPM setting
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Nothing prints? ➤ Check for signal from encoder
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Jittery codes? ➤ Poor mounting or incorrect signal type (A/B vs single channel)