I have this Brother MFC 9120CN printer.

It started printing faintly, like when its low on ink. Eventually I bought new ink cartridges. All, black, and the three colours. But it's still printing faintly.

I thought maybe the printer was set to print lightly on the printer, or another setting. I am using ubuntu linux. I even tried printing from a windows machine. without luck.

I have had it about 5 years, I wonder if it needs a service of some kind or ????

I wasted a lot of time already. The printer was in russian language, i found a way to change to English but then the printer wasn't recognised on the PC. So had to change it back to Russian.

any suggestions? I don't want to spend a lot...