Samsung CLX-9250ND - Manual (Page 54)

Initial settings and testing of the machine_ 53
3. Press Copy from the display screen.
4. Press Start from the control panel to begin copying.
5. Compare the condition of the printout with the DADF test chart.
For example, the length of scale marks in the circles is equivalent (acceptable range by less or more than 0.5 mm), it
means the DADF was installed well.