another computer using printer?

[yesthemoma]

I am having this problem with the PIXMA MX 490 PRINTER. I use wireless laptop, and windows 10. Can anyone help as there is no other computer.

[shadowsports]

Try bouncing the Print Spooler Service.  That usually resolves the issue.

In case you aren't familar with the "bounce" term, that means stop and restart. 

Start button > type services.msc and press the enter key.

[dpbrick]

Check your ink.  Is one or more of the cartridges indicating low?  Chances are one (or more) has actually run out.  It's not telling you this because of a glitch in Canon's drivers that they haven't bothered to fix.  Replace the ink tanks -- start with the one indicating the lowest level -- and retry.  Resetting the print queue as others suggest is only a temporary fix.  The permanent fix is in Canon's hands.