This note determines the eliminated image-side closures of principal walls for endpoint-compression words on the ALA_LAL-chart. It proves that the full image is dense, the determinant and endpoint walls eliminate to uv=wuv=wuv=w and u=1u=1u=1, and the GM15 corner components collapse to the same image-side line u=1, w=vu=1,\ w=vu=1, w=v.