Thanks for posting your question on Justanswer.com, a global paid independent support site.My Name is ***** ***** I will be assisting you today. The problem can be caused by many reasons, like carriage block, empty cartridge, waste ink absorber full etc. I am giving some solution below, which you can try at home, if the problem persists then, unfortunately, you have to repair the printer. Please do not hesitate to ask me a further question on this problem otherwise please remember to give a positive rating, as that is the only way I am compensated for my time and effort.
Solution 1 :- Check for any foreign body in the printer: piece of paper, paper clip...- Check for any paper jams.Solution 2:- This error code C000 could be made by an empty cartridge: check for this.