Cause of following may have occurred failure of automatic print head alignment.
Press the printer's OK button to cancel the error and take the corresponding actions below.
Check the print head condition by printing the nozzle check pattern.
Load two sheets of A4 / Letter size paper.
Important
After doing the measure above, perform automatic print head alignment again.
Note
If the error occurs again, press the printer's OK button to cancel the error, then perform manual print head alignment.