Can you please do a couple of things.
1. give the output of apt-cache policy firefox
2. give us a screenshot of print preview
3. attach a picture of the page after you print it
4. check the amount of black ink you have left.
5. check your printer settings
Can you please do a couple of things.
1. give the output of apt-cache policy firefox
2. give us a screenshot of print preview
3. attach a picture of the page after you print it
4. check the amount of black ink you have left.
5. check your printer settings