I have printing issues with my Roland SC 540 printer. It was printing without any problems till yesterday morning. I start to print and saw some yellow lines on top on other colors. I have spare printhead so replace the yellow with the new one but no difference still same. I change the yellow printhead connection cable also have checked all connections and cables to headboard they look all good.
Please see the attached pictures
Maybe someone have same issue and could help me?
Different problems at different times
You have electrical issues
You have new head not aligned issues
You have block printing which is cable alignment issues causing the head to fire when not being used