How to Calibrate the Base Step on Your DTF Printer

Watch the video walkthrough: DTF Printer Calibration Guide on YouTube

If you’re seeing horizontal lines or banding across your prints, and your nozzle check looks fine, the base step calibration may be off. The base step controls how far the printer’s stepper motors feed the film between each pass of the print head. If the step size isn’t quite right, you’ll get visible lines running horizontally across your output.

Before You Start

• Warm up your printer. As always, temperature matters. Let the machine reach operating temperature before calibrating.
• Run a nozzle check. Banding can also be caused by clogged nozzles, so rule that out first. If your nozzle check is clean and the banding is consistent (not coming and going), calibration is the likely culprit.
• Check film tension. This is especially important for banding issues. If the film is too tight, the printer has to work harder to feed it, which can cause print problems on its own. The roll should spin with just a little resistance when turned by hand.

Step-by-Step: Base Step Calibration

1. In your printer manager software, go to Calibrate and select Base Step.
2. Click Print. The printer will produce a calibration test pattern.
3. Examine the output. You’ll see a series of horizontal lines arranged around a centre point marked zero. At zero, the lines should be perfectly consistent and straight across, with no gaps or overlaps between them.
4. If the lines at zero aren’t straight, look along the scale to find the number where the lines are consistent and straight across. Note whether it’s above zero (positive) or below zero (negative).
5. Adjust the value in the software by that amount. If the correct line is at +5, add 5 to the current value. If it’s at –5, subtract 5.

Important: As with other calibrations, this is the amount you change the value by, not the number you set it to.

6. Click Save, then Print again to verify your adjustment.
7. Check the new output. The lines at zero should now be perfectly consistent and straight across.
8. Save and exit.

Troubleshooting

If banding persists after calibration:

• Re-run the nozzle check. If the banding comes and goes, it’s more likely a nozzle issue than a calibration issue.
• Check film tension again — this is a very common cause of banding that’s easy to overlook.
• Make sure the machine was fully warmed up before you calibrated.
• Contact our tech support team if the problem persists.

Tip: Banding can have multiple causes. If your calibration looks correct but you’re still seeing lines, check the nozzles and film tension before re-calibrating — adjusting a correct calibration will only make things worse.