Oki ES1220n User Manual page 254

2. Note the positions of the four image drums: Cyan (1), Magenta
(2), Yellow (3), Black (4). It is essential that they go back in the
correct order!
If the printer has been powered on, the fuser is hot. This
area is clearly labelled. Do not touch it.
WARNING!
ES 1220n Clearing Paper Jams • 254