need some help troubleshooting this piece of ****.

The green on/off button and the red light on the button on it just keeps flashing. when i press the red one, the ink cartridge just moves around a bit, goes back, then the both lights just stay on.

turning it on and off doesnt help....

and it doesnt print anything

This kind of nonsense always happens when you urgently need to print something....what rubbish man.

would appreciate any help. Many thanks.