g Turn the drum unit over by holding the green handles. Make sure that the drum unit gears (1) are on the left hand side.
1 
h Note the following information from the drum dot check sheet:
Dot colour
For example, a mark on the cyan drum would produce a cyan dot on the check sheet.
Dot location
Note which of the printed columns the dot appears in.
Routine maintenance
i On the problem colour drum, use the numbered markers next to the drum roller to find the mark. For example, a cyan dot in column 2 on the check sheet would mean that there is a mark on the cyan drum in the "2" region.
A
73