Fix CIJ print misalignment by diagnosing encoder setup, line speed variation, and photocell trigger timing errors.
What causes drifting codes?
Your printer is firing too early or too late—usually due to encoder mis calibration or inconsistent product spacing.
Common root causes
| Cause | Fix |
|---|---|
| Encoder pulses-per-metre wrong | Calibrate based on line speed and product size |
| Trigger signal delay | Adjust photocell position or software delay setting |
| Conveyor speed fluctuating | Use external encoder instead of internal timing |
| Product not aligned | Install guide rails or spacers |
Steps to fix it
-
Go to
System > Print Interval > External Encoder -
Confirm correct PPM setting
-
Adjust print delay under
Trigger Settings -
Test print and measure print-to-edge offset
-
If still drifting, inspect photocell placement