This is not news. If you are shopping for a new PRINTER you may find a warning about the compound mentioned in the TITLE of this post.
Here in California, back in 2015, a lawyer made a case that gives gives the chemical a bad name.

This is about Titanium Dioxide.

Here is a link about that lawyer:
https://grimaldilawoffices.com/successful-defense-in-proposition-65-titanium-dioxide-lawsuit/
Quote

In a July 10, 2015 order, an Alameda County Superior Court judge found in favor of DEFENDANTS in a Proposition 65 lawsuit alleging exposures to titanium dioxide in cosmetic products.  The defendants successfully challenged the plaintiff’s 60-day notice based on admissions made by the plaintiff that it had not conducted any testing to confirm that the listed chemical was present in each product.

...Generally, it is sourced from ilmenite, rutile and anatase. It has a wide range of applications, including paint, sunscreen and food coloring. When used as a food coloring, it has E number E171. World PRODUCTION in 2014 exceeded 9 million metric tons.[4][5][6] It has been estimated that titanium dioxide is used in two-thirds of all pigments, and the oxide has been valued at $13.2 billion.[7]