Besides normal printing, you can also use mobile printing services. You will not, however, be able to change advanced print settings.
Send the document you want to print as an attachment to firstname.lastname@example.org (this will only work from university e-mail addresses in the format UČO followed by @mail.muni.cz).
Log in to https://print.ucn.muni.cz/m/ and upload a file. Click on Upload a new print job, then Select file. Once you have selected your file, click Upload.
You can only access the printing web application through the MU network or VPN.