My Lexmark X7170 all in one just started doing this recently - it looks like my printer is redacting secret government documents. I am using an original Lexmark cartridge. We you able to resolve this issue or did you move onto a new printer?
My Lexmark X7170 printer prints extra black vertical bars when I copy or print anything. I first noticed this when I was attempting to print a page from the internet. I thought it might have been grayed out areas from the internet site. Then I copied the page to Word and printed. The same bars showed up. Then I put a document on the scanner and copied. The bars continue to appear. I had the Black cartridge refiled before this happened. Could this be the culprit?