# SCN Board - After replacement

The following adjustment charts are required to execute this menu. Chats are included in the ADF / SCN Unit ASP box.

• ADF, CHART(J), A4-DS

• ADF, CHART(81), LTV-MTF

1. Turn the power ON.
   
2. Press [Execution].
   
3. Set the LTV-MTF chart on the document placed and press [Execute].
   
   Concentration adjustment of the SCN unit is performed.
4. Set the LTV-MTF chart on ADF tray and press [Execute].
   
   Density calibration for ADF performs.
5. Set the A4-DS chart on ADF tray and press [Execute].
   
   ADF Scan Position/ Scaling Calibration (600dpi) is performed.
6. Press [OK] to complete the menu.