Problems with stylesheet_tag_link and print.js and print.css inside HTML SLIM

Hey folks I'm getting an issue and I'm needing huge help, I got a project recently and this project was made by another guy, the guy is really good, one of the best rails programmer here in Brazil, but the problem I`m facing is that I have an html slim, and a stylesheet_tag_link referencing to print.css, the print.css is inside the public folder, it finds it, no problem until here. The problem is when I load this slim page, automatically it triggers the javascript called print.js, which is responsible to print de screen, it really does it but the problem is: THE PRINTING IS GETTING NO CSS! The print is completely white, with no css structure putted inside the print.css so, i recreated the html, copying the source code from the browser, manually putted it inside of the folder of the slim, and guess what, this didn't find none of the referenced css of the page, so I don't know what to do, should I abort using STYLESHEET_TAG_LINK?