Lexmark printer non-printing problem is a very common printer error, and one can experience this error for a number of reasons. This problem may be due to problems with your computer's print spoiler service. Lexmark printer paper jam problem can also cause this error of Lexmark Printer not Printing.
Fix Lexmark Printer not Printing
Go to the Start menu and then select Control Panel.
Go to the search box and type Computer Management. Select the icon that appears by double-clicking it.
Click Services, and then select the Print Spooler option. Select "Restart" to restart the spooler service. Then send the print job to see if the problem is resolved.
Unplug your Lexmark printer. Now open your printer to make sure there is no paper jammed inside. Wait at least half a minute before reconnecting your printer to an electrical outlet.
Check if the problem with the Lexmark printer is not working or not by sending a print job.
Uninstall the printer drivers, and then reinstall them.