T790 Banding

[Fran61]

Hello, internal prints are fine  but to print blueprints we get a blank spot about every  3.5 inches.

we aligned everything done all calibration it's has printed sometimes flawlessly but most of time has blank lines,

HELP........ Thanks

[PPDTECH]

Hi

This sounds like a printhead issue, try performing a head clean, also confirm expiry date on heads.

[Roy_Kuzmich]

Can you post a sample of the issue you are getting.

Please let us know what the printing direction is.

Thanks,

Roy

[gringod]

Hi Have you tried the advance calibration?