Oki MPS710c User Manual page 59

1. Press the cover release and open the printer's top cover
fully.
If the printer has been powered on, the fuser may be
hot. This area is clearly labelled. Do not touch.
2. Note the positions of the four cartridges.
(a) Pull the colored toner release lever on the cartridge to be
replaced fully towards the front of the printer.
1 = cyan
2 - magenta
3 = yelloiw
4 = black
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– MPS710c User's Guide
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