Aficio 2022 connected to computer by parallel port

I have had this aficio 2022 for less than 2 years and have less than 20,000 copies. I only have used it as a copy machine . There is no network card , or ethernet port , but there is a printer parallel port . I now want to use it as a printer so I connected it to a computer , downloaded the drivers , and the computer says the printer is installed fine . The problem is that it will not print , if I unhook the parallel cable the computer doesn't sense that anything has changed , its as if the parallel port doesn't work . I took of the back of the copier to see if maybe it was a dummy port that led nowhere , alas it is wired to the board. Below where the port connects to the board there is a red blinking light above a small switch with 4 tiny switches , what is wrong with my parallel port ,