Dell Printer V305

Hi. I have had my current Dell V305 Printer for about a year or so and it is starting to show a lot of errors. I tried to use it today and I started everything as normal to copy a paper. Then my printer said that I needed to refill my paper when I had an almost full tray of paper. I had tried taking paper out, putting it back in, and nothing worked. it finally said that it accepted the paper, but I needed to change the paper size, when the paper was at the size it needed to be at. I had the tape removal problem before too.

Thanks