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Error: Invalid Engine Code
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If you have not yet done so, try turning the printer off and then back on. Simply resetting the printer may restore it to a working condition.
If not, the code on the printer's engine board will need to be rewritten. It is possible to send the engine code file to the printer without having the printer serviced. You can obtain this file from the Lexmark website. Before you send the engine code file to the printer, it is helpful to put the printer into "Flash Engine" mode. Do the following:
Turn the printer off.
Press and hold the Menu>, Select, and Return buttons.
While holding these buttons down, turn the printer on.
When Performing Self Test appears on the printer, release the buttons. The printer screen should now say Invalid Engine Code.
If copying the engine code to the printer does not clear the error message, the engine/system board will need to be replaced. This will require service to the printer. If your printer is still covered under a factory warranty click here and follow the links to find a service provider.