i came across this explanation of it, haven't verified it directly but he seems to make good content:
https://youtube.com/shorts/ZX8OaZZDlM8
he says theres identification each time you print using the yellow ink, and basically is a counterfeit currency countermeasure
id kill to have a foss print setup though
i came across this explanation of it, haven't verified it directly but he seems to make good content:
https://youtube.com/shorts/ZX8OaZZDlM8
he says theres identification each time you print using the yellow ink, and basically is a counterfeit currency countermeasure
id kill to have a foss print setup though