a) check the temperature and ambient humidity. The valid range for temperature: 18 c-24 c and humidity 40%-80%-work in other conditions causing shanking and head bands.
b) lower the temperature of the heaters on the plotter-do not exceed 32 c
c) replace filters on the head
d) check the ink level in tanks
e) make sure that the arrangement between the tank and the head is sealed and has no leaks or air bubbles in the lines.
f) perform head cleaning when printing/PAUSE/CLEANING/ENTER
