HP Officejet 7000 wide format printer is not feeding paper

Had a paper jam. Removed paper from back of printer, but paper tore apart so I removed the rest of paper from the front (input/feed) of the printer. Now have 2 blinking lights (power & resume buttons) on panel and paper does not feed. Searching on-line I found that removing a paper jam from input side could damage print mechanism. How do I fix it or replace print mechanism?