1, production reasons:
(1) uneven feeding.
(2) the main motor bearing damage or poor lubrication.
(3) a section of the heater failure, not heating.
(4) the screw adjustment mat is incorrect, or the phase is not right, the element interference.
2, processing method:
(1) check the feeding machine, troubleshooting.
(2) repair the main motor, if necessary, replace the bearing.
(3) check whether the heater is working properly, if necessary, replace the heater.
(4) check the adjustment pad, pull out the screw to check whether the interference phenomenon.