Einleitung
The plug ports are soldered onto the circuit board, so this is more of a circuit board replacement. Be careful when handling electronic circuit boards to avoid damaging the components and to avoid electric shock.
Werkzeuge
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            Remove the two 13 mm screws located on the back of the printer using a screwdriver with the T10 torx bit (star-shaped). 
 
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            In the front of the printer, open the tray where the paper comes out and remove the two 13 mm screws located under the top of the printer. 
 
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            With the front of the printer facing you, lift and raise the left side of the panel (like opening a book in reverse) until it disconnects from the clip on the right side of the panel. 
 
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            Locate and remove the two flat ribbon connectors which connect the circuit board to the other printer components. 
 
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            Locate and remove the three multicolored wire connectors which connect the circuit board to the other printer components. 
 
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            Remove the top two 13mm screws using a screwdriver with the T10 torx bit. 
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            Remove the bottom 9mm screw using a screwdriver with the T10 torx bit, and remove the plug port circuit board. 
 
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To reassemble your device, follow these instructions in reverse order.