Oki C610dtn User Manual page 73

3.
Note the positions of the
drums (b). It is essential that they go back in the same order.
It will be necessary to remove the four image drums to gain
access to the paper path.
4. Holding it by its top center, lift the image drum, complete
with its toner cartridge, up and out of the printer.
four toner cartridges (a) and image
b
73
– C610/C711 User's Guide
a