Preparation
Remove these parts:
- Top front cover (Proof Tray, Top Front Cover, Top Center Cover, Top Rear Cover)
 - Top center cover (Proof Tray, Top Front Cover, Top Center Cover, Top Rear Cover)
 
- Remove the bracket [A] (
x4,
x4)
 - Disconnect the connector [A] (
x1)
 - Depress the release [A] then remove the switch [B].