Have this error when starting printer or after press button to make carriage move or after sending job from pc and what model printer you have .
Have you check the trailling cable which connect main board to head carriage are connected well ,remove the top cover check if there any wrinkles on the cable mybe it's make disconnected if have multimeter test it ,on the head carriage the base where the cable connect have little piece like drawer when out you can release cable when connect cable you must make in sure that not broken it's holding the cable and make that contact part on cable touch the contact part on board .