What can I do if my calibration fails? – GMG Support

If a calibration fails, the error may be caused by the printer itself, the inks, or the inserted medium.

Turn off the printer completely and disconnect it from the power supply.
Remove the measuring unit.
Clean the measuring head and the white tile.
Put the measuring unit back in place.
Make sure that the shelf life of your cartridges has not expired. If it has expired, please replace your cartridges.
Shake all cartridges carefully for about 10 - 15 seconds, especially those for the colors orange, green, and violet.
Print a nozzle test to make sure that there are no blockages inside the printing nozzles.
In case of blocked ink nozzles, perform 1 - 2 power cleanings for the affected colors.
Is the correct media loaded? If not, please replace the media.
Is enough media left on the roll? If not, please insert a new roll.
Perform a print head alignment. If you also print bidirectionally, the sequence is important: first align for unidirectional printing, then for bidirectional printing.
Is your printer an Epson Sure Color SC-P7500 or SC-P9500 model? If yes, please make sure that the device's lateral feed adjustment is deactivated. You can find this setting under Roll Paper > Advanced Paper Settings > Lateral Feed Adjustment.

If the issue still persists after following these steps, please adjust the paper feed.