S.H.
Is the queue on 'pause'?
Make sure all your settings are correct... on the control panel.
Make sure all connections/cords are plugged in properly.
And yes, make sure the printer is compatible with Windows 7.
Go online and do a Google search... sometimes you have to do an update/drivers for the printer... or get a "patch" for it.... which can be gotten online.
Go to the HP website....