There are many reasons why the printer does not print, there are printers, there are computer aspects.
1. Check if the printer is online.
2. Check that the printer is set as the default printer.
3. Check whether the current printer is set to pause printing.
4. Type some text in Notepad, and then click Print on the File menu.
5. Check that the computer's hard disk is too low on the remaining space.
6. Check that the printer driver is appropriate and that the print configuration is correct.
7. Check that the printer port is open in the computer's BIOS settings.
8. Check the computer for viruses, if necessary to use anti-virus antivirus software.
9. Check to see if the printer driver is damaged.
10. The printer input tray is free of paper or paper jam, the printer toner cartridge, ribbon or toner cartridge is valid and, if not, cannot be printed.