Color doesn't print before and after printhead replacment.
No, its not possible. The problem is likely the ink has dried in the purge unit or one of the small tubes going to the waste pad. The new printhead is the fix for the ERROR 41. The problem is there is sometimes other things that go bad, purge unit being just one example. One of the biggest problems with inkjets is that consumers leave their printers alone for long periods of time and the ink dries and clogs the tiny hoses inside. Even the ink cartdriges are just ink tanks, I have replaced those many times and have seen bad ones that just won't flow, replaced the inks and it works fine. You also have to put in the id# for the printhead after you replace it. Did you do that or get the instructions?