My older DIGITAL laser printer wont print?

i have an older brand name digital DEClaser5100 laser printer and i loaded the drivers on the computer and when i go to print, an error message will come up saying 'error printing' and i have made sure that the cables are in the correct places but when it comes to print, it says on the printer it self on the little display screen: PCL parallel and the 'on line' light is lit along with the 'data' light and the 'ready' light is flashing
can anyone help me out?

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Digital printing company