My printer has stop printing on my brother mfc 5100c
Error 41 means there is a major problem with the printhead, usually
requires a print head replacement.
My advice is to take it to a
Brother service centre while if it is under warranty.
If it's out of warranty they are usually a throw away job, the heads cost as much as the printer.
Sorry I know what it feels like, just have a go and see what you can do, clean the heads and so on.
All the Best and good luck: Pineworks