I have just replaced one of the cartridges in my wifes HP Deskjet 2540 Printer she is not in and has her laptop with her.But as I have always been able to use her printer from my laptop I tried to print to make sure it was ok but it will not print.When I go into Devices and Printers it says her printer is HP Deskjet 2540 series (Network) does that mean it can only print from her laptop which is strange as I have printed from my laptop before as I could change from my printer to her's.How do I change it back and why would it change in the first place.Will I have to uninstall it from my laptop and re-install it.Thank's