Is MAINTE. FREQ. set to LOW?

If MAINTE. FREQ. is set to LOW, change it to NORMAL. Changing this setting to NORMAL will increase the number of cleaning operations, preventing dot drop-out and dot displacement.
Mainte_FREQ
MEMO Especially when printing on objects with a thickness of 20 mm (0.79 in.) or more, change MAINTE. FREQ. to NORMAL.