Sublimation Printing Issues with photos

Hi, we have just purchased Affinity Designer and Photo to use with a sublimation printer Ricoh SG7100DN and a Sefa heat press. We have installed the Sawgrass colour profiles and used them to print out the photo to add to coasters. The issue is the blacks are printing red/brown and this happens when we print black ink work illustrations. Please can anyone help with the settings? Attached are the screenshots of document preferences and document setup for printing. The screenshots include t

Hi Jo and Andy, Rather than converting your document to a different colour profile, have you tried using colour management at the print stage? To do this, don't convert your colour profile (keep it in Adobe RGB/sRGB if you're working in RGB). Instead, once you go to print, under the Colour Management section (I forget exactly what this is called but it should be labelled something similar) you'll have the option to either let the printer manage colours or use ColorSync. Choose ColorSync