Message telling me to close printer door

[Maree]

I have just replaced the PGBK XL ink for the first time in my new Canon Pixma MG5660 and when I tried to print, it told me to close the door.  I've checked it and everything looks correct and the door is shut properly.  Any ideas?

Maree 

[Waddizzle]

Try cycling the power on and off.  Verify that the inks are properly seated, too.

[Maree]

Thanks for your quick reply.  I switched both printer and computer off and then on again, and it is fixed!  Thank you again.

Maree