# C4 Paper Size/Cassette Sensor Assy

1. Remove the 4 screws fixing the C3C4 Additional Rear Cover (A).
   
   
   • : 3x8D
2. While pulling the C3 and C4 Additional Rear Covers (A) out in the direction of the red arrow, rotate it in the direction of the blue arrow to disengage the 3 hooks, then remove the C3 and C4 Additional Rear Covers.
   
3. Disconnect the cables from the connectors (B) (CN1/CN2/CN3/CN4/CN5/CN6) of the C3C4 Additional Main Board (A).
   
4. Remove 4 screws and remove the C3C4 Additional Main Board (A).
   
   
   • : 3x8D
5. Release the cable from 2 clamps (A).
   
6. Remove 4 screws and remove the C3C4 Additional Main Board Holder (A).
   
   
   • : 3x8D
7. Remove the cable from the connector (A) and relay connector (B), remove the 2 screws, and remove the C4 paper size/cassette sensor Assy (C).
   
   
   • : 3x8D