When printing documents with a certain font (Kalinga) the attached happens. This happens system wide and on both the printers in the office. If I open the same document from my iPhone or iPad and print via AirPrint then these artefacts disappear. Likewise if I print to Adobe Acrobat Reader and then print to the actual printer from within Adobe then these artefacts also disappear. Strange one I know, but it is quite frustrating. Anyone any ideas? Im using a 2013 MBA with all the latest updates installed.