1. Refer to Remove the Electronics Cover to remove the electronic cover.
2. Take off the slot-in wireless interface board by removing 2 screws (fastened by 5.5 kg±15% kg-cm) on rear of printer.
Install 2 copper pillars (fastened by 7.5 kg±15% kg-cm) on main board.
3. Remove 2 cable connectors from the main board and insert GPIO transfer cables, then connect 2 removed cables to GPIO
transfer connectors as indicated.