I haven't bought any ink yet.

Difficult to say, probably not the intended area of application. My wife, who runs a small company, still has the original colours in the cupboards after well over a year, but she has already had to run the cleaning programme once (!) because one colour had dried up. Then everything went well again. But the company uses the GX7050 on a daily basis, even if not for hundreds of pages every day, but often just a few.

Yes, don't buy it if you don't print it every week.
It gets clogged...