My dell laser printer 3110 gives me two error codes 016-317 or 016-302. Am using windows 7 and have not had previous problem

SOURCE: dell 5110cn printer error code 016-317

The 016-317 on this printer refers to the printer not being able to communicate with the MCU board. This is what you should do. This was pulled from support.dell.com. Which is the same troubleshooting trees as the phone/internet agents use. If this doesn't solve your issue, you will more than likely need to update the firmware of the printer, or replace the board. STEP: Reseat the controller card on the 5100cn-series printer.
Additional Information CAUTION: Before you perform any of the following steps, read the Precautionary Measures warning (located in the Resources/Additional Resources section) for your personal safety and to prevent damage to the computer system from electrostatic discharge.
To reseat the controller card, perform the following steps:

1. Make sure that the printer is turned off and unplug all cables including the power cord from the rear of the printer.
2. Pull the tray rear cover so that the top edge tilts out, then lift the tray rear cover off its hinges. (Figure 1)
   
   
   
   Figure 1 - Remove the Tray Rear Cover
   
   
3. Remove the three screws on the control board from the back side of the printer. (Figure 2)
   
   
   
   Figure 2 - Remove the Three Screws
   
   
4. Remove and reinsert the controller card from the printer by the handles. (Figure 3)
   
   
   
   Figure 3 - Reseat the Controller Card
   
   
5. Tighten the three screws on the control board on the back side of the printer.
6. Reattach the tray rear cover to the back of the printer.

SOURCE: 016-317

I am sorry, I recently left that job and no longer have the documentation to answer most questions concerning xerox product fault codes.
My apologies, I just no longer have that information.

SOURCE: Corrupt Dell 2130cn laser printer

Apparently the controller board needs to be replace.
Dell has agreed to do this, despite that the service period has expired.

SOURCE: I have a Dell Laser

I have the same problem. I tried everything I found on the forums (Google search for error 016-317) and finally ended up calling Dell support. Technician arrived at the conclusion that I needed a new system board - $350 for the board and $110 for the technician to come out and fix it.
I am looking for a cheaper mother system board and and hoping, in my search, I come up with another, cheaper, solution. Good luck to you.