![](/images/new-backgrounds/1206338/206338151x1.webp)
4. Replacement and Adjustment
Electrical Components
Layout of PC Boards
4
[A]
[B]
[C]
[D]
ECB (Engine Controller Board)
Controller Board
FCU (Fax Control Unit) - behind the main controller board
USB Board
ECB (Engine Controller Board)
1.Front cover ( p.23)
2.Left cover ( p.24)
74