My prints have horizontal, I can’t seem to find anything on the internet as of a proper name for this issue but I attached examples. The lines seem to happen at a constant rate that scales up and down with the size of the print. What causes this and what can I do to solve it?

Printer: Anycubic Kossel

Slicer: Cura 15.04

Material: Black, PLA 1.75MM

Print speed: 20mm/s

Fan: Full speed, 255

Driver currents: .83~.84 V

Print temperature: 205°