In some cases, your computer's print queue may be jammed with old documents that could not be printed for one reason or another.
Right-click the printer icon in the notification area of Windows. Select Open All Printers to display a list of currently queued items. In macOS, you can view the queue at System Preferences> Printers and Scanners> Open Print Queue . Right-click on all old elements and delete them to repeat chugging.
Alternatively, on Windows, you can restart the printer spooler, which tries to print these documents as if they had just been added to the queue, not need to be deleted).
There are some ways to do this, but the simplest is probably through the command prompt. Open the Start menu, search for "Command Prompt", right-click on the displayed option and select "Run as Administrator". Then paste the following commands and press Enter:
- Net Stop Spooler
- % Systemroot% System32 spool PRINTERS * / Q / F / S
- Net Startup Spooler
If you're lucky, your printer will come back to life and you'll receive the document you've been waiting for.