Is this off limits? I use an HP computer & printer/scanner/fax combination. I have attempted several times to connect them so that printer is useful. The power cord from printer is plugged into computer; I have followed simple instructions without success. Is another connection needed? Can some savvy person tell me what is missing? I really miss being able to use the printer. Thanks very much. I like to think I can fix things; obviously this simple thing I cannot fix.