This guide is simple, and a prerequisite to all other repairs made to the printer. Taking off the cover allows access to all parts.
Begin to disassemble the printer by disconnecting from all power sources and computers. Keep cords separate and allow the printer to cool for 5 minutes.
Flip the printer upside down and locate the cover on the left hand side. It is rectangular shape and is held in place by two screws. Unscrew these screws and take off cover.
To release the tray from the printer, you must manually pull it out. Hold the tray and push towards one side of the printer. Then pull away from the printer towards the other side. Keep output tray separate.
Turn the printer upside down. Locate the four screws holding the cover in place. These will be on the edges of the cover.
Unscrew the four screws, keeping them separate. Turn the printer back right side up
Place fingers on the edge of the red cover. Begin to pull upwards to release the top portion, working your way around the printer. Make sure that it does not fall back into place.
Once the top is loose, there will still be a connection wire between the printer and the cover. This wire will be about one inch wide and white, located under the buttons.
Detach the wire from the printer by pulling the blue-sealed end from the white holder.