Different colors of same color text and shapes LBP633Cdw

[regularlabs]

I have a LBP633Cdw.
I am having issues where text and other elements of the same color print as different colors.

As a test, I have a pdf that contains full green text on a full green background. This should result in a green rectangle, with no text visible.

But the result is this:

Even when exporting the file as a PDF/X-1, I get above result.

Running on a MacOS 14.5, (re)installed the LBP633Cdw PS drivers. Still same issue.

PDF can be downloaded from: https://regl.io/colortest.pdf