Oki C7200 English: C7200 & C7400 Series Handy Reference - Page 26

Changing Toner Cartridges (cont.) 7. Hold the cartridge in a vertical position with port on the left and the blue lock lever on the right, then lower the left end into the image drum, sliding the tube on the drum into the port on the toner cartridge. Caution! Be sure to push the lock lever all the way back. If it is not pushed back and you close the cover, the lever could damage the LED printhead. 10. Use the LED lens cleaner supplied with the toner to wipe clean the LED head. 8. Press the cartridge toward the left slightly, then lower the right end, aligning the white tab (1) with the groove in the drum. 11. Close the cover. 9. Push the blue lock lever toward the back of the printer as far as it will go. 12. Turn the printer back on. Important! After the new toner cartridge is installed, the TONER LOW message should disappear from the display. If it doesn't, try printing a page. If it still doesn't disappear, reinstall the toner cartridge 26