we have only printed on paper so far. we are now starting to print on canvas. We have 300gsm canvas.

do we need to use platen or ink collector please?

many thanks

To check the porosity of your substrate to understand if you need Ink collector and Take up Reel, please read the following article: https://hplatexknowledgecenter.com/blog/printing-porous-substrates-hp-latex-365-and-hp-latex-375-printer