I overloaded the paperfeed and it started feeding two pages at once and then it stopped and the paper load/eject light came on. I pressed the load/eject button and jumbled symbols came out on the paper. Eventually the light went out but when I tried to print the PC seemed to respond but nothing appeared to go through to the printer. When I switch the printer on the carriage movement is normal but not when I swich it off - it just goes off - when I switch the PC off there is no response from the printer. It is as though the link between is broken. Help would be appreciated.