During the operation of a 3-D printer, a technician notices that the first few layers of the print are well-formed, but subsequent layers are misaligned and the print quality deteriorates as height increases. What is most likely causing this degradation in print quality?
Insufficient cooling or improper fan operation
Z-axis stepper motor issues or a dirty/damaged lead screw
Blocked nozzle affecting the filament extrusion process
The printer needs re-calibration of the print bed