printer blinking lights and notice saying "not communicat to computer".

The printer suddenly became disable when try to print envelop.

The printer swich light and Photo light, and Phone Auto Answer light are constantly blinking.

And computer in Printer section says: Printer connection is lost. Disconnect and connect again.

I tried as the above, but still the pringer, HP Photosmart Premium C309a series, is unable to connect to

computer, and still blinking lights.

There is no paper jam any where. I need help to connect the printer to the computer.

H Y S-J