Thank you John.
My system is Windows 7.
I have the installation disc for Windows that came with the printer.
I haven't tried your suggestions but have written them down. It might take me some time - I'm not very computer savvy. I know the wi-fi password ***** BT Infinity, if that's what you mean.
Thank you. Shall I try first? A friend is visiting here soon who can probably comply with your answer if I can't make it work. If the printer still won't connect, can I contact you again after that?
Thank you John very much indeed for such clear instructions.
I will try them when my friend comes and contact you again if they don't work. They certainly sound as though they will fix the problem.